Table of Contents

Component Description

The objective of the dietary interview component is to obtain detailed dietary intake information from NHANES participants. The dietary intake data are used to estimate the types and amounts of foods and beverages (including all types of water) consumed during the 24-hour period prior to the interview (midnight to midnight), and to estimate intakes of energy, nutrients, and other food components from those foods and beverages. Following the dietary recall, participants are asked questions on salt use, whether the person’s overall intake on the previous day was much more than usual, usual or much less than usual, and whether the respondent is on any type of special diet. Questions on frequency of fish and shellfish consumed during the past 30 days were asked of survey participants 1 year or older, with the use of proxies for young children (see the MEC In-Person Dietary Interviewers Procedures Manual for more information on the proxy interview).

The dietary interview component, called What We Eat in America (WWEIA), is conducted as a partnership between the U.S. Department of Agriculture (USDA) and the U.S. Department of Health and Human Services (DHHS). Under this partnership, DHHS' National Center for Health Statistics (NCHS) is responsible for the survey sample design and all aspects of data collection and USDA’s Food Surveys Research Group (FSRG) is responsible for the dietary data collection methodology, maintenance of the databases used to code and process the data, and data review and processing.

All NHANES participants are eligible for two 24-hour dietary recall interviews. The first dietary recall interview is collected in-person in the Mobile Examination Center (MEC) and the second interview is collected by telephone 3 to 10 days later.

As in previous years, two types of dietary intake data are available for the 2013-2014 survey cycle: Individual Foods files and Total Nutrient Intakes files.

What's New with the 2013-2014 WWEIA Release:

In the Individual Foods files, 2 response options regarding where each food/beverage was obtained were changed for clarification. The “Child care center” code was modified to “Child/Adult care center” and the “Family/Adult day care center" code was modified to “Child/Adult home care.”

In the Total Nutrient files, variables were added for 2 new questions asked in day 1 and day 2 about salt use at the table yesterday and the kind of salt used. These questions are in addition to the question that is asked in day 1 about usual salt use at the table and the kind of salt used.

Appendix 1 provides a summary of changes among the 5 latest cycles of data collection.

Dietary Interview Data Files: Four data files were produced from the information collected in the dietary interviews: two Individual Foods files and two Total Nutrient Intakes files. Each file includes one day of intake data. The number “1” or “2” in the file name identifies the day (and mode) of the interview: 1 = first day (in-person), 2 = second day (phone). File names are as follows:

File Names for Dietary Interview Data:
File Day 1 Day 2
Individual Foods File DR1IFF_H DR2IFF_H
Total Nutrient Intakes File DR1TOT_H DR2TOT_H

The amounts in these files reflect only nutrients obtained from foods, beverages, and water, including tap and bottled water. They do not include nutrients obtained from dietary supplement intakes, antacids, or medications. Data on intake of dietary supplement use are available on the NHANES 2013-2014 Dietary Data page.

Individual Foods Files (DR1IFF_H and DR2IFF_H): Detailed information about each food/beverage item (including the description, amount of, and nutrient content) reported by each participant is included in the Individual Foods files. The names for both Day 1 and Day 2 variables are listed in Appendix 2.

The Individual Foods files include, for each interview day, one record for each food/beverage consumed by a participant. Each record is uniquely numbered within a participant’s set of records and contains the information listed below:

  • Number of days of complete intake obtained from participant
  • Day of the week of the intake
  • Whether the food/beverage was eaten in combination with other foods, such as in a sandwich
  • Time of eating occasion when the food was eaten
  • Eating occasion name
  • Where the food/beverage was obtained
  • Whether the meal/snack was eaten at home or not
  • A USDA FNDDS code identifying the food/beverage
  • Amount of food/beverage consumed, in grams
  • Food energy and 64 nutrients/food components (listed in Appendix 3) from each food/beverage as calculated using USDA's Food and Nutrient Database for Dietary Studies 2013-2014 (FNDDS 2013-2014)

Descriptions for the USDA FNDDS food codes are provided in the Food Code Description file (DRXFCD_H). The DRXFCD_H file includes abbreviated descriptions (up to 80 characters) and complete descriptions (up to 200 characters) associated with each USDA food code in the FNDDS 2013-2014. Appendix 4 provides SAS code examples that may be used to link the food code description to the Individual Foods file.

Total Nutrient Intakes Files (DR1TOT_H and DR2TOT_H): For each participant, daily total energy and nutrient intakes from foods and beverages, and whether the amount of food consumed was usual, much more than usual, or much less than usual, are included in the Total Nutrient Intakes files. The Day 1 file also includes information on salt use in cooking and at the table; whether the participant is currently on any kind of diet to lose weight or for another health-related reason and, if so, the type of diet; and information on frequency of fish and shellfish consumption for participants aged 1 or older. The names for both Day 1 and Day 2 variables are listed in Appendix 5.

The Total Nutrient Intakes files provide a summary record of total nutrient intakes for each individual. Each total intake record contains the following information:

  • Number of days of complete intake obtained from participant
  • Day of the week of the intake
  • Type of salt used and how often added at the table and in food preparation (Day 1 file only)
  • Use of salt at the table yesterday and the type of salt used
  • Whether the participant is currently on any kind of diet to lose weight or for other health-related reason and, if so, the type of diet (Day 1 file only)
  • Total number of foods and beverages including water reported for that participant for that day's intake
  • Daily aggregates of food energy and 64 nutrients/food components (listed in Appendix 3) from all foods/beverages as calculated using USDA's Food and Nutrient Database for Dietary Studies 2013-2014 (FNDDS 2013-2014)
  • Whether the amount of food consumed was usual, much more than usual, or much less than usual
  • Total amount of tap and bottled water consumed (calculated as the sum of reports of water drunk by itself in the 24-hour recall) and the usual source of tap water
  • Frequency of fish and shellfish consumption in the past 30 days (participants one year or older, Day 1 file only)

Eligible Sample

All NHANES participants are eligible for the dietary interview component. However, only participants one year or older are eligible for the frequency of fish and shellfish consumption questions following the 24-hour recall.

Protocol and Procedure

The examination protocol and data collection methods are fully documented in the NHANES dietary interviewer procedures manuals (In-person interview: https://wwwn.cdc.gov/nchs/data/nhanes/2013-2014/manuals/2013_mec_in-person_dietary_interview-manual.pdfphone follow-up interview: https://wwwn.cdc.gov/nchs/data/nhanes/2013-2014/manuals/phone_follow-up_dietary_interviewers_manual.pdf).

Interviews were conducted for participants less than six years of age with a proxy (who was generally the person most knowledgeable about the participant’s intake). Interviews of children ages 6 to 8, were conducted with a proxy and the child present to assist in reporting intake information. Interviews of children ages 9-11, were conducted with the child and the assistance of a proxy familiar with the child’s intake. Participants 12 years or older answered for themselves. Dietary interviewers conducted interviews in English and Spanish. Translators were used to conduct interviews in other languages.

The in-person interview was conducted in a private room in the NHANES mobile examination center (MEC). A set of measuring guides (various glasses, bowls, mugs, bottles, household spoons, measuring cups and spoons, a ruler, thickness sticks, bean bags, and circles) was available in the MEC dietary interview room for the participant to use for reporting amounts of foods (NHANES Measuring Guides for the Dietary Recall Interview: https://www.cdc.gov/nchs/nhanes/measuring_guides_dri/measuringguides.htm). Upon completion of the in-person interview, participants were given measuring cups, spoons, a ruler, and a food model booklet, which contained two-dimensional drawings of the various measuring guides available in the MEC, to use for reporting food amounts during the telephone interview. Telephone dietary interviews were collected 3 to 10 days following the MEC dietary interview, but not on the same day of the week as the MEC interview. Any participant who did not have a telephone was given a toll-free number to call so that the recall could be conducted.

What We Eat in America data were collected using USDA's dietary data collection instrument, the Automated Multiple Pass Method (AMPM) (http://www.ars.usda.gov/ba/bhnrc/fsrg). The AMPM was designed to provide an efficient and accurate means of collecting intakes for large-scale national surveys. The AMPM is a fully computerized recall method that uses a 5-step interview outlined below:

  1. Quick List - Participant recalls all foods and beverages consumed the day before the interview (midnight to midnight).
  2. Forgotten Foods - Participant is asked about consumption of foods commonly forgotten during the Quick List step.
  3. Time and Occasion - Time and eating occasion are collected for each food.
  4. Detail Cycle - For each food, a detailed description, amount eaten, and additions to the food are collected. Eating occasions and times between eating occasions are reviewed to elicit forgotten foods.
  5. Final Probe - Additional foods not remembered earlier are collected.

The AMPM includes an extensive compilation of standardized food-specific questions and possible response options. Routing of questions is based on previous responses. The AMPM is updated for each 2-year collection of WWEIA to reflect the changing food supply and to address research needs from the data user community. Additional information about the AMPM is provided in Raper et al. (Raper et al., 2004).

The AMPM was validated in a large study and shown to be an effective method for collecting accurate group energy intake of adults. Completed in 2004, this extensive research project included 524 healthy, weight-stable volunteers, aged 30-69 years. The accuracy of the AMPM was evaluated by comparing reported energy intake (EI) to total energy expenditure (TEE) using the doubly labeled water technique (Moshfegh et al., 2008). Among the findings were that EI compared to TEE was under-reported by 11% overall, by less than 3% for normal weight subjects with body mass index (BMI) < 25 and 16% for overweight subjects with BMI ≥ 25.

Additional studies provide evidence that the AMPM accurately measures group energy intake. Blanton (Blanton et al., 2006) reported that EI was not significantly different from TEE for a sample of 20 adult females. Rumpler and colleagues found that mean EIs were accurately reported for a sample of 12 adult males (Rumpler et al., 2008).

Additional evidence for the accuracy of AMPM has been provided by analysis of the 24-hour urinary sodium data collected in the AMPM Validation Study, which suggest the AMPM is a valid measure for estimating mean sodium intake in adults. Dietary sodium intake calculated from 24-hour recall data of 465 subjects collected via AMPM was compared with sodium values from 24-hour urine collections measured during the same 24-hour period. The AMPM-derived mean dietary sodium estimates reflected over 90% of the biomarker-based estimates (Rhodes et al., 2013).

For additional information about the dietary interview component and related survey protocols, please go to the Survey Operations Manuals site at: https://wwwn.cdc.gov/nchs/nhanes/continuousnhanes/manuals.aspx?BeginYear=2013.

Quality Assurance & Quality Control

All dietary interviewers were required to complete an intensive one-week training course and to conduct supervised practice interviews before working independently in the field. Retraining sessions were conducted annually to reinforce the proper protocols and technique.

Interviewers were monitored throughout the data collection period. Monitoring consisted of the following:

  • Reviews of audio recorded interviews or in-person observations were conducted for approximately 5% of each interviewer's work.
  • Interviews were checked for completeness of the recalls, missing information, inconsistent reports, and unclear notes. Written notification and feedback were provided to the interviewers.

Data Processing and Editing

Interview data files were sent electronically from the field and were imported into Survey Net, a computer-assisted food coding and data management system developed by USDA (Raper et al., 2004).

USDA's Food and Nutrient Database for Dietary Studies (FNDDS) 2013-2014 was used for processing the 2013-2014 intakes (http://www.ars.usda.gov/ba/bhnrc/fsrg). The FNDDS includes comprehensive information that can be used to code individual foods/beverages and portion sizes reported by participants and also includes nutrient values for calculating nutrient intakes. FNDDS nutrient values are updated for every 2-year WWEIA, NHANES release cycle. The basis for the nutrient values in FNDDS are detailed in the documentation for FNDDS 2013-2014 available at http://www.ars.usda.gov/nea/bhnrc/fsrg.

Coders were required to pass a certification test after the initial training. They were routinely monitored to ensure the quality and completeness of their work. Approximately 10 percent of the coder's work was randomly selected to be independently coded by another coder. Results from the two codings were compared and adjudicated, if necessary.

After intake data were coded, various types of reviews and quality assurance procedures were conducted by FSRG scientists to ensure the quality of the data. Examples of reviews include the following:

  • Interviewers' and coders' questions and comments were reviewed to ensure that they have been addressed.
  • Decisions made by coders about how to code new or unusual foods/beverages or quantities reported by participants were reviewed by FSRG scientists. Items of question were resolved by FSRG scientists.
  • Specific data integrity checks for reasonableness, consistency, and logic were conducted.

Analytic Notes

Each Individual Foods file (Day 1 and Day 2) is comprised of food records. For most participants, there are multiple records in each file. For each Total Nutrient Intakes file (Day 1 and Day 2) there is one record for each participant. These files can be linked with other NHANES files by the respondent sequence number (SEQN).

Variable names: For data collected on both Day 1 and Day 2, variable names are differentiated by having the number "1" or "2" in the third position of the variable name to identify the collection day. For example, the USDA food code variable (in the Individual Foods File), which identifies the food reported by the participant, is named DR1IFDCD in the Day 1 file and DR2IFDCD in the Day 2 file. Appendices 2 and 5 list the Day 1 and Day 2 variable names for the Individual Foods file and the Total Nutrient Intakes file, respectively.

Names for the following variables are the same for both days in the Individual Foods file and the Total Nutrient Intakes file:

Variables with the Same Name for Both Days in the Dietary Interview Files
Day 1 and Day 2 variable name Label
SEQN Respondent sequence number
WTDRD1 Dietary day one sample weight
WTDR2D Dietary two-day sample weight
DRABF Breast-fed infant (either day)
DRDINT Number of days of intake

Number of days of intake: A variable has been included to indicate the number of days of intake collected from each participant. The variable name is DRDINT. In 2013-2014, 8,661 participants provided complete dietary intakes for Day 1. Of those providing the Day 1 data, 7,574 provided complete dietary intakes for Day 2.

Dietary recall status code: A status code (DR1DRSTZ or DR2DRSTZ) is used in both the Individual Foods and Total Nutrient Intakes files to indicate the quality and completeness of a survey participant's response to the dietary recall section. The codes are the following:

1 = Reliable and met the following minimum criteria:

  • The first 4 steps of the 5-step AMPM completed.
  • Food/beverages consumed for each reported eating occasion identified.

For individuals with a code 1, all relevant variables associated with the 24-hour dietary recall contain a value.

2 = Not reliable or did not meet the minimum criteria

Individuals with a code 2 have incomplete records. No data on total nutrient intakes and the total number of foods reported are provided for these cases. These individuals have no records in the Individual Foods files.

3     [Code 3 is not included in the current datasets. It was only used for data from the 1999-2000 survey cycle.]

4 = Reported consuming breast milk

For infants and children who consumed human milk, there is a record in the Individual Foods files for each report of human milk. However, because amounts of human milk intake are not quantified, these records contain missing values for the amount consumed and for the amounts of energy and nutrients from human milk. Also, records of human milk have a missing value for the food source variable (DR1FS, DR2FS) and the eaten at home variable (DR1_040Z, DR2_040Z) in the Individual Foods files. Records for any other foods and beverages consumed by breast-fed infants and children are included in the Individual Foods files along with their amounts and nutrient information. Because of the missing amount or quantity information for human milk, no total nutrient intakes (contained in the Total Nutrient Intakes files) were computed for participants with a code 4.

A variable that identifies breast-fed children, DRABF, is included. This variable has a code of 1 if a child consumed human milk in either intake day.

5 = Not done

This code is assigned when the dietary recall section of the interview did not take place due to various reasons (such as arrived late/left early, refusal, illness, emergency, or equipment failure). These individuals have no records in the Individual Foods files. These individuals have a record in the Total Nutrients file with values only for the following variables: the respondent sequence number (SEQN), the dietary recall status code (DR1DRSTZ or DR2DRSTZ) and for participants one year or older, the fish and shellfish questions in the DR1TOT_H file (DRD340, DRD350A-K, DRD350AQ-JQ, DRD360, DRD370A-V, and DRD370AQ-UQ).

Only codes 1 and 4 appear in the Individual Foods file.

Distinguishing Between Foods/Beverages and Dietary Supplements in NHANES

The 24-hour dietary supplement use component is administered after the 24-hour dietary recall. All NHANES participants responding to the 24-hour dietary recall interview are eligible for the dietary supplement and non-prescription antacid use questions. Information is obtained on all vitamins, minerals, herbals, and other dietary supplements as well as non-prescription antacids that were consumed during a 24-hour time period (midnight to midnight), including the name and the amount of supplement or antacid taken.

Distinguishing between foods/beverages and supplements can be challenging. NCHS and FSRG review questionable items reported in the dietary supplement and dietary recall components to resolve disposition of these items into the appropriate component. Products that are labeled as a dietary supplement, that have a supplement facts panel on the label, and are in tablets, capsules, softgels, gelcaps, or other pill forms, are considered dietary supplements. Items that are powders or liquids can be hard to distinguish. General guidelines used state that if powders and liquid concentrates have product directions stating that they be added to a liquid, they are classified as beverages. Examples are teas and protein powders. An exception is made for fiber products, which are classified as dietary supplements. Along this same guideline, energy drinks are considered beverages, but “energy shot” type products are considered dietary supplements.

It is best to refer to the two databases that detail every food/beverage and dietary supplement reported in NHANES to identify exact determination used. The databases are:

Participants who reported consuming only water, no food or other beverages: Records are included in the Individual Foods file for participants who consumed only water. There are 6 such individuals in the 2013-2014 datasets, none in the Day 1 data and 6 in the Day 2 data. Their dietary recall status variable for the day is coded as "1" (complete and reliable) in the Total Nutrients file and the total number of items is coded based on how many times water was reported. Individuals with just water intake and no food intake will have zero energy intake for the day.

Participants who reported consuming no water, food or other beverages: There can be survey participants whose intakes are determined to be complete even though they reported no water, food, or other beverage records for the day. For such participants there are no records in the Individual Foods file but their dietary recall status is coded as complete and reliable and the Total Nutrients file will include records with zero values for all nutrients. In the 2013-2014 datasets, there is 1 individual in the day 2 data that reported no water, food, or other beverage records for the day.

Number of days between the intake day and the day of family interview: Each of the four intake files includes a variable (DR1DBIH for Day 1 files and DR2DBIH for Day 2 files) to indicate the number of days between the intake day (i.e., the period covered by the 24-hour recall) and the day that the family questionnaire was administered in the household. A positive value in DR1BHIH or DR2BHIH indicates the family interview occurred prior to the intake day. In the survey, most of the family interviews were done before the participant came to the MEC and participated in the dietary interview. A value of "0" in DR1BHIH or DR2BHIH indicates the family interview occurred on the same date as the intake day. A negative value (i.e., DR1BHIH<0 or DR2BHIH<0) means that the family interview occurred after the intake day.

Food source: The source from which each food/beverage was obtained (e.g., from a store, fast food restaurant, cafeteria) is identified by the variables DR1FS (day 1) and DR2FS (day 2) in the Individual Foods files.

In 2013-2014, the descriptions for codes 8 and 9 “Child care center” and “Family/Adult day care center” have been revised to “Child/Adult care center” and “Child/Adult home care,”, respectively.

The code descriptions for this variable are:

Code Descriptions for Source of Food Variable
Code Description
1 Store grocery/supermarket
2 Restaurant with waiter/waitress
3 Restaurant fast food/Pizza
4 Bar/Tavern/Lounge
5 Restaurant, no additional information
6 Cafeteria NOT in a K-12 school
7 Cafeteria in a K-12 school
8 Child/Adult care center
9 Child/Adult home care
10 Soup kitchen/shelter/food pantry facility
11 Meals on Wheels Program
12 Community food program – other
13 Community program, no additional info
14 Vending machine
15 Common coffee pot or snack tray
16 From someone else/gift
17 Mail order purchase
18 Residential dining facility
19 Grown or caught by you or someone you know
20 Fish caught by you or someone you know
24 Sport, recreation, or entertainment
25 Street vendor, vending truck
26 Fundraiser sales
27 Store - convenience type
28 Store - no additional information
91 Other, specify

Eating occasion: The variables DR1_030Z and DR2_030Z are located in the Individual Foods file. The code descriptions for the eating occasion variables are shown in the table below.

Code Descriptions for Eating Occasion Variable
Code Description
1 Breakfast
2 Lunch
3 Dinner
4 Supper
5 Brunch
6 Snack
7 Beverage/Drink
8 Feeding-infant only
9 Extended consumption
10 Desayuno
11 Almuerzo
12 Comida
13 Merienda
14 Cena
15 Entre comida
16 Botana
17 Bocadillo
18 Tentempie
19 Bebida
91 Other

Eating occasion was designated by the respondent. During the interview, a list of eating occasion names was available to the respondent for selection. However, eating occasion names were not defined for the respondent.

Foods and beverages coded as part of a combination: Forty-three percent of foods and beverages reported in WWEIA, NHANES 2013-2014 were identified as items consumed together as combinations. Items consumed as a combination were identified by one of fifteen unique "combination food types." Foods and beverages not coded in combination have the code "0" for the combination food type variable.

The combination types provide a linkage for:

  • Foods or beverages with additions, such as cereal with milk, coffee with cream;
  • Multi-component foods that have specific protocol for collection such as some salads and sandwiches (primarily those that are not from fast food establishments); and
  • Other combinations that do not have a unique code in the FNDDS.
Combination Type, Code, Examples, and Percent of Food and Beverages Reported by Type, 2013-2014, Day 1
Combination Type Code Examples of Combination Type % Items
Not in combination 0 NA 57
Beverage w/ additions 1 Coffee, tea with: milk, cream, sugar. Infant formula with: baby cereal. 8
Cereal w/ additions 2 Cereals (ready-to-eat, cooked, baby) with: milk, sugar, fruit, butter. 4
Bread/baked product w/additions 3 Breads, rolls, pancakes with: butter, jam, syrup, fruit. Cakes, pies with: ice cream, toppings. Crackers with: cheese, dip, peanut butter. 4
Salad 4 Components of salads that do not have a single code in FNDDS. It may also designate additional items to single code salads. 4
Sandwiches 5 Components of sandwiches that do not have a single code in FNDDS. It may also designate additional items added to single code sandwiches. 10
Soup 6 Soup with: crackers, croutons, cheese. 1
Frozen meals 7 Components of a prepackaged frozen meal and additions to the meal. <1
Ice cream/ frozen yogurt w/ additions 8 Ice cream with: syrup, nuts, toppings. <1
Dried beans or Vegetable w/ additions 9 French fries, potatoes with: catsup, gravy, butter, toppings. Beans with: sauce, butter. 3
Fruit w/ additions 10 Fruit with: toppings, milk, honey. Components of fruit mixtures or salads that do not have a single code in FNDDS. 1
Tortilla products 11 Components of tacos and tortilla products that do not have a single code in FNDDS. It may also designate additional items to single code tacos or tortilla products. 1
Meat, Poultry, Fish 12 Meat, poultry, fish with: gravy, sauce, and condiments. 2
Lunchables® 13 Components of pre-packaged lunch kits. <1
Chips w/ additions 14 Potato chips, corn chips with: dip, cheese, salsa. 1
Other mixtures 90 Rice, pasta, spaghetti, eggs, other mixtures with: butter, gravy, sauce, condiments. 4

All items given a combination food type are given an additional variable to identify each of the items within the combination. This variable is the "combination food number" that is unique to the combination food type within the individual intake.

Variable Labels and Names for Combination Coding
Combination Coding Variable Name, Day 1 Variable Name, Day 2
Combination food type DR1CCMTX DR2CCMTX
Combination food number DR1CCMNM DR2CCMNM

The What We Eat in America Food Categories, available on the FSRG website (www.ars.usda.gov/nea/bhnrc/fsrg), is a grouping scheme that combines foods and beverages together that have similar usage and nutrient content with the emphasis on how they are commonly consumed in the American diet. There are approximately 150 unique categories and each is assigned a 4-digit number and description. The WWEIA Food Categories contain discrete food items and are not disaggregated (e.g., pizza vs. grain, cheese, tomatoes, etc.). Designed to be flexible, the categories can be combined as needed to address specific research questions. A new version of the WWEIA Food Categories is produced for each 2-year release cycle of WWEIA, NHANES.

Special diet: Information on whether the participant is currently on any kind of diet to lose weight or for other health-related reason and, if so, the type of diet, was provided. The variable DRQSDIET identifies whether a participant was on a special diet. The variables DRQSDT1 through DRQSDT12 and DRQSDT91 identify the type of diet or diets that the participant was following. These variables can be found in the Total Nutrient Intakes file.

Sample weights for dietary intake data: The NHANES participants were selected on the basis of a national probability design. In order to increase the number of participants for specific demographic groups, a multi-stage, unequal probability of selection design was implemented. Beginning with the 2011-2012 data collection the NHANES sample design includes an oversample of Asian Americans.

Sample weights are constructed that encompass the unequal probabilities of selection, as well as adjustments for non-participation by selected sample persons. In order to produce national, representative estimates, the appropriate sample weights must be used.

For NHANES 2013-2014, there were 14,332 persons selected; of these 9,813 were considered participants to the MEC examination and data collection. A total of 8,661 MEC participants provided complete dietary intakes for Day 1, and of those providing the Day 1 data, 7,574 provided complete dietary intakes for Day 2.

Most analyses of NHANES data use data collected in the MEC and the variable WTMEC2YR should be used for the sample weights. However, for the WWEIA dietary data, different sample weights are recommended for analysis. Although attempts are made to schedule MEC exams uniformly throughout the week, proportionally more exams occur on weekend days than on weekdays. Because food intake can vary by weekdays and weekends, use of the MEC weights disproportionately represents intakes on weekends.

A set of weights (WTDRD1) is provided that should be used when an analysis uses the Day 1 dietary recall data (either alone or when Day 1 nutrient data are used in conjunction with MEC data). The set of weights (WTDRD1) is applicable to the 8,661 participants with Day 1 data. Day 1 weights were constructed by taking the MEC sample weights (WTMEC2YR) and further adjusting for (a) the additional non-response and (b) the differential allocation by weekdays (Monday through Thursday), Fridays, Saturdays and Sundays for the dietary intake data collection. These Day 1 weights are more variable than the MEC weights, and the sample size is smaller, so estimated standard errors using Day 1 data and Day 1 weights are larger than standard errors for similar estimates based on MEC weights.

When analysis is based on both days of dietary intake, only 7,574 sample participants have complete data. The NHANES protocol requires an attempt to collect the second day of dietary data at least 3 days after the first day, but the actual number of days between the two interviews is variable. A set of adjusted weights, WTDR2D, is to be used when an analysis uses the smaller sample with completed Day 1 and Day 2 dietary data. This two-day weight was constructed for the 7,574 participants by taking the Day 1 weights (WTDRD1) and further adjusting for (a) the additional non-response for the second recall and (b) for the proportion of weekend (Friday through Sunday) and weekday (Monday through Thursday) combinations of Day 1 and Day 2 recalls.

Note that all sample weights are person-level weights and each set of dietary weights should sum to the same overall population control total as the MEC weights (WTMEC2YR). In addition, the MEC weights (WTMEC2YR) are appropriate for use in the analysis of the fish and shellfish consumption data (i.e., variables DRD340, DRD350A-K, DRD350AQ-JQ DRD360, DRD370A-V, and DRD370AQ-UQ) located in the Day 1 Total Nutrient Intake File (DR1TOT_H), if no other dietary data are included in the analysis. Additional explanation of sample weights and appropriate uses are included in the NHANES Analytic Guidelines. Please also refer to the on-line NHANES Tutorial for further details on other analytic issues.

References

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number.
Target:
Both males and females 0 YEARS - 150 YEARS

WTDRD1 - Dietary day one sample weight

Variable Name:
WTDRD1
SAS Label:
Dietary day one sample weight
English Text:
Dietary day one sample weight
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2493.021655 to 267526.89097 Range of Values 8661 8661
0 Day 1 dietary recall not done/incomplete 1152 9813
. Missing 0 9813

WTDR2D - Dietary two-day sample weight

Variable Name:
WTDR2D
SAS Label:
Dietary two-day sample weight
English Text:
Dietary two-day sample weight
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1953.802108 to 818626.65723 Range of Values 7574 7574
0 Day 2 dietary recall not done/incomplete 1087 8661
. Missing 1152 9813

DR1DRSTZ - Dietary recall status

Variable Name:
DR1DRSTZ
SAS Label:
Dietary recall status
English Text:
Dietary recall status
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Reliable and met the minimum criteria 8531 8531
2 Not reliable or not met the minimum criteria 122 8653
4 Reported consuming breast-milk 130 8783
5 Not done 1030 9813
. Missing 0 9813

DR1EXMER - Interviewer ID code

Variable Name:
DR1EXMER
SAS Label:
Interviewer ID code
English Text:
Interviewer ID code
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2 to 91 Range of Values 8783 8783
. Missing 1030 9813

DRABF - Breast-fed infant (either day)

Variable Name:
DRABF
SAS Label:
Breast-fed infant (either day)
English Text:
Indicates whether the sample person was an infant who was breast-fed on either of the two recall days.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 134 134
2 No 8527 8661
. Missing 1152 9813

DRDINT - Number of days of intake

Variable Name:
DRDINT
SAS Label:
Number of days of intake
English Text:
Indicates whether the sample person has intake data for one or two days.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Day 1 only 1087 1087
2 Day 1 and day 2 7574 8661
. Missing 1152 9813

DR1DBIH - # of days b/w intake and HH interview

Variable Name:
DR1DBIH
SAS Label:
# of days b/w intake and HH interview
English Text:
Number of days between intake day and the day of family questionnaire administered in the household.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
-31 to 74 Range of Values 8706 8706
. Missing 1107 9813

DR1DAY - Intake day of the week

Variable Name:
DR1DAY
SAS Label:
Intake day of the week
English Text:
Intake day of the week
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Sunday 1460 1460
2 Monday 698 2158
3 Tuesday 887 3045
4 Wednesday 821 3866
5 Thursday 728 4594
6 Friday 2228 6822
7 Saturday 1961 8783
. Missing 1030 9813

DR1LANG - Language respondent used mostly

Variable Name:
DR1LANG
SAS Label:
Language respondent used mostly
English Text:
The respondent spoke mostly:
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 English 7862 7862
2 Spanish 716 8578
3 English and Spanish 98 8676
4 Other 38 8714
5 Asian Languages 66 8780
6 Asian Languages and English 17 8797
. Missing 1016 9813

DR1MNRSP - Main respondent for this interview

Variable Name:
DR1MNRSP
SAS Label:
Main respondent for this interview
English Text:
Who was the main respondent for this interview?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 SP 6702 6702
2 Mother of SP 1596 8298
3 Father of SP 234 8532
4 Wife of SP 8 8540
5 Husband of SP 1 8541
6 Daughter of SP 11 8552
7 Son of SP 4 8556
8 Grandparent of SP 53 8609
9 Friend, Partner, Non Relative 1 8610
10 Translator, not a HH member 2 8612
11 Child care provider, Caretaker 10 8622
12 Other Relative 30 8652
14 Other specify 0 8652
77 Refused 0 8652
99 Don't know 1 8653
. Missing 1160 9813

DR1HELPD - Helped in responding for this interview

Variable Name:
DR1HELPD
SAS Label:
Helped in responding for this interview
English Text:
Who helped in responding for this interview
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 SP 704 704
2 Mother of SP 338 1042
3 Father of SP 115 1157
4 Wife of SP 1 1158
5 Husband of SP 2 1160
6 Daughter of SP 8 1168
7 Son of SP 5 1173
8 Grandparent of SP 17 1190
9 Friend, Partner, Non Relative 3 1193
10 Translator, not a HH member 53 1246
11 Child care provider, Caretaker 6 1252
12 Other Relative 28 1280
13 No one 7347 8627
14 Other specify 0 8627
77 Refused 0 8627
99 Don't know 1 8628
. Missing 1185 9813

DBQ095Z - Type of table salt used

Variable Name:
DBQ095Z
SAS Label:
Type of table salt used
English Text:
What type of salt {do you/does SP} usually add to {your/his/her/SP's} food at the table? Would you say . . .
English Instructions:
CAPI INSTRUCTION: IF SP AGE <= 5, DISPLAY "DO YOU" FOR FIRST DISPLAY AND {SP'S} FOR SECOND DISPLAY.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Ordinary salt [includes regular iodized salt, sea salt and seasoning salts made with regular salt] 4976 4976
2 Lite salt 321 5297
3 Salt substitute 102 5399
4 Doesn't use or add salt products at the table 3258 8657 DRQSPREP
91 Other 0 8657
99 Don't know 126 8783 DRQSPREP
. Missing 1030 9813

DBD100 - How often add salt to food at table

Variable Name:
DBD100
SAS Label:
How often add salt to food at table
English Text:
How often {do you/does SP} add ordinary salt to {your/his/her/SP's} food at the table? Would you say . . .
English Instructions:
CAPI INSTRUCTION: IF SP AGE <= 5, DISPLAY "DO YOU" FOR FIRST DISPLAY AND {SP'S} FOR SECOND DISPLAY.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Rarely 2871 2871
2 Occasionally 1579 4450
3 Very often 941 5391
7 Refused 0 5391
9 Don't know 8 5399
. Missing 4414 9813

DRQSPREP - Salt used in preparation?

Variable Name:
DRQSPREP
SAS Label:
Salt used in preparation?
English Text:
How often is ordinary salt or seasoned salt added in cooking or preparing foods in your household? Is it never, rarely, occasionally, or very often?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Never 557 557
2 Rarely 1602 2159
3 Occasionally 3078 5237
4 Very Often 3398 8635
9 Don't know 148 8783
. Missing 1030 9813

DR1STY - Salt used at table yesterday?

Variable Name:
DR1STY
SAS Label:
Salt used at table yesterday?
English Text:
Did {you/SP} add any salt to {your/her/his} food at the table yesterday? Salt includes ordinary or seasoned salt, lite salt, or a salt substitute.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1448 1448
2 No 7273 8721 DRQSDIET
9 Don't know 62 8783 DRQSDIET
. Missing 1030 9813

DR1SKY - Type of salt used yesterday

Variable Name:
DR1SKY
SAS Label:
Type of salt used yesterday
English Text:
What type of salt was it? (Was it ordinary or seasoned salt, lite salt, or a salt substitute?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Ordinary, sea, seasoned, or other flavored salt 1320 1320
2 Lite salt 83 1403
3 Salt substitute 29 1432
91 Other 0 1432
99 Don't know 16 1448
. Missing 8365 9813

DRQSDIET - On special diet?

Variable Name:
DRQSDIET
SAS Label:
On special diet?
English Text:
Are you currently on any kind of diet, either to lose weight or for some other health-related reason?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1033 1033
2 No 7704 8737 DR1TNUMF
9 Don't know 46 8783 DR1TNUMF
. Missing 1030 9813

DRQSDT1 - Weight loss/Low calorie diet

Variable Name:
DRQSDT1
SAS Label:
Weight loss/Low calorie diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Weight loss or low calorie diets 523 523
. Missing 9290 9813

DRQSDT2 - Low fat/Low cholesterol diet

Variable Name:
DRQSDT2
SAS Label:
Low fat/Low cholesterol diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2 Low fat or low cholesterol diet 131 131
. Missing 9682 9813

DRQSDT3 - Low salt/Low sodium diet

Variable Name:
DRQSDT3
SAS Label:
Low salt/Low sodium diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
3 Low salt or low sodium diet (including diet to lower blood pressure or hypertension) 121 121
. Missing 9692 9813

DRQSDT4 - Sugar free/Low sugar diet

Variable Name:
DRQSDT4
SAS Label:
Sugar free/Low sugar diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
4 Sugar free or low sugar diet 37 37
. Missing 9776 9813

DRQSDT5 - Low fiber diet

Variable Name:
DRQSDT5
SAS Label:
Low fiber diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
5 Low fiber or low residue diet 0 0
. Missing 9813 9813

DRQSDT6 - High fiber diet

Variable Name:
DRQSDT6
SAS Label:
High fiber diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
6 High fiber or high residue diet 4 4
. Missing 9809 9813

DRQSDT7 - Diabetic diet

Variable Name:
DRQSDT7
SAS Label:
Diabetic diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
7 Diabetic diet (including gestational diabetic diets) 146 146
. Missing 9667 9813

DRQSDT8 - Weight gain/Muscle building diet

Variable Name:
DRQSDT8
SAS Label:
Weight gain/Muscle building diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
8 Weight gain/Muscle building diet 34 34
. Missing 9779 9813

DRQSDT9 - Low carbohydrate diet

Variable Name:
DRQSDT9
SAS Label:
Low carbohydrate diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
9 Low carbohydrate diet 67 67
. Missing 9746 9813

DRQSDT10 - High protein diet

Variable Name:
DRQSDT10
SAS Label:
High protein diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
10 High protein diet 22 22
. Missing 9791 9813

DRQSDT11 - Gluten-free/Celiac diet

Variable Name:
DRQSDT11
SAS Label:
Gluten-free/Celiac diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
11 Gluten-free/Celiac diet 31 31
. Missing 9782 9813

DRQSDT12 - Renal/Kidney diet

Variable Name:
DRQSDT12
SAS Label:
Renal/Kidney diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
12 Renal/Kidney diet 8 8
. Missing 9805 9813

DRQSDT91 - Other special diet

Variable Name:
DRQSDT91
SAS Label:
Other special diet
English Text:
What kind of diet are you on? (Is it a weight loss or low calorie diet: low fat or cholesterol diet; low salt or sodium diet; sugar free or low sugar diet; low fiber diet; high fiber diet; diabetic diet; or another type of diet?)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
91 Other special diet 75 75
. Missing 9738 9813

DR1TNUMF - Number of foods/beverages reported

Variable Name:
DR1TNUMF
SAS Label:
Number of foods/beverages reported
English Text:
Total number of foods/beverages reported in the individual foods file
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 49 Range of Values 8661 8661
. Missing 1152 9813

DR1TKCAL - Energy (kcal)

Variable Name:
DR1TKCAL
SAS Label:
Energy (kcal)
English Text:
Energy (kcal)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
117 to 12108 Range of Values 8531 8531
. Missing 1282 9813

DR1TPROT - Protein (gm)

Variable Name:
DR1TPROT
SAS Label:
Protein (gm)
English Text:
Protein (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 869.49 Range of Values 8531 8531
. Missing 1282 9813

DR1TCARB - Carbohydrate (gm)

Variable Name:
DR1TCARB
SAS Label:
Carbohydrate (gm)
English Text:
Carbohydrate (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
8.67 to 1423.87 Range of Values 8531 8531
. Missing 1282 9813

DR1TSUGR - Total sugars (gm)

Variable Name:
DR1TSUGR
SAS Label:
Total sugars (gm)
English Text:
Total sugars (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.13 to 1115.5 Range of Values 8531 8531
. Missing 1282 9813

DR1TFIBE - Dietary fiber (gm)

Variable Name:
DR1TFIBE
SAS Label:
Dietary fiber (gm)
English Text:
Dietary fiber (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 136.3 Range of Values 8531 8531
. Missing 1282 9813

DR1TTFAT - Total fat (gm)

Variable Name:
DR1TTFAT
SAS Label:
Total fat (gm)
English Text:
Total fat (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 548.38 Range of Values 8531 8531
. Missing 1282 9813

DR1TSFAT - Total saturated fatty acids (gm)

Variable Name:
DR1TSFAT
SAS Label:
Total saturated fatty acids (gm)
English Text:
Total saturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 177.467 Range of Values 8531 8531
. Missing 1282 9813

DR1TMFAT - Total monounsaturated fatty acids (gm)

Variable Name:
DR1TMFAT
SAS Label:
Total monounsaturated fatty acids (gm)
English Text:
Total monounsaturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 221.673 Range of Values 8531 8531
. Missing 1282 9813

DR1TPFAT - Total polyunsaturated fatty acids (gm)

Variable Name:
DR1TPFAT
SAS Label:
Total polyunsaturated fatty acids (gm)
English Text:
Total polyunsaturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 182.462 Range of Values 8531 8531
. Missing 1282 9813

DR1TCHOL - Cholesterol (mg)

Variable Name:
DR1TCHOL
SAS Label:
Cholesterol (mg)
English Text:
Cholesterol (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3515 Range of Values 8531 8531
. Missing 1282 9813

DR1TATOC - Vitamin E as alpha-tocopherol (mg)

Variable Name:
DR1TATOC
SAS Label:
Vitamin E as alpha-tocopherol (mg)
English Text:
Vitamin E as alpha-tocopherol (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 172.32 Range of Values 8531 8531
. Missing 1282 9813

DR1TATOA - Added alpha-tocopherol (Vitamin E) (mg)

Variable Name:
DR1TATOA
SAS Label:
Added alpha-tocopherol (Vitamin E) (mg)
English Text:
Added alpha-tocopherol (Vitamin E) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 99.87 Range of Values 8531 8531
. Missing 1282 9813

DR1TRET - Retinol (mcg)

Variable Name:
DR1TRET
SAS Label:
Retinol (mcg)
English Text:
Retinol (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10565 Range of Values 8531 8531
. Missing 1282 9813

DR1TVARA - Vitamin A, RAE (mcg)

Variable Name:
DR1TVARA
SAS Label:
Vitamin A, RAE (mcg)
English Text:
Vitamin A as retinol activity equivalents (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10597 Range of Values 8531 8531
. Missing 1282 9813

DR1TACAR - Alpha-carotene (mcg)

Variable Name:
DR1TACAR
SAS Label:
Alpha-carotene (mcg)
English Text:
Alpha-carotene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 35057 Range of Values 8531 8531
. Missing 1282 9813

DR1TBCAR - Beta-carotene (mcg)

Variable Name:
DR1TBCAR
SAS Label:
Beta-carotene (mcg)
English Text:
Beta-carotene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 78752 Range of Values 8531 8531
. Missing 1282 9813

DR1TCRYP - Beta-cryptoxanthin (mcg)

Variable Name:
DR1TCRYP
SAS Label:
Beta-cryptoxanthin (mcg)
English Text:
Beta-cryptoxanthin (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 24328 Range of Values 8531 8531
. Missing 1282 9813

DR1TLYCO - Lycopene (mcg)

Variable Name:
DR1TLYCO
SAS Label:
Lycopene (mcg)
English Text:
Lycopene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 103913 Range of Values 8531 8531
. Missing 1282 9813

DR1TLZ - Lutein + zeaxanthin (mcg)

Variable Name:
DR1TLZ
SAS Label:
Lutein + zeaxanthin (mcg)
English Text:
Lutein + zeaxanthin (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 102638 Range of Values 8531 8531
. Missing 1282 9813

DR1TVB1 - Thiamin (Vitamin B1) (mg)

Variable Name:
DR1TVB1
SAS Label:
Thiamin (Vitamin B1) (mg)
English Text:
Thiamin (Vitamin B1) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.007 to 10.652 Range of Values 8531 8531
. Missing 1282 9813

DR1TVB2 - Riboflavin (Vitamin B2) (mg)

Variable Name:
DR1TVB2
SAS Label:
Riboflavin (Vitamin B2) (mg)
English Text:
Riboflavin (Vitamin B2) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 29.455 Range of Values 8531 8531
. Missing 1282 9813

DR1TNIAC - Niacin (mg)

Variable Name:
DR1TNIAC
SAS Label:
Niacin (mg)
English Text:
Niacin (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.215 to 379.852 Range of Values 8531 8531
. Missing 1282 9813

DR1TVB6 - Vitamin B6 (mg)

Variable Name:
DR1TVB6
SAS Label:
Vitamin B6 (mg)
English Text:
Vitamin B6 (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.016 to 48.321 Range of Values 8531 8531
. Missing 1282 9813

DR1TFOLA - Total folate (mcg)

Variable Name:
DR1TFOLA
SAS Label:
Total folate (mcg)
English Text:
Total folate (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3172 Range of Values 8531 8531
. Missing 1282 9813

DR1TFA - Folic acid (mcg)

Variable Name:
DR1TFA
SAS Label:
Folic acid (mcg)
English Text:
Folic acid (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2828 Range of Values 8531 8531
. Missing 1282 9813

DR1TFF - Food folate (mcg)

Variable Name:
DR1TFF
SAS Label:
Food folate (mcg)
English Text:
Food folate (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2357 Range of Values 8531 8531
. Missing 1282 9813

DR1TFDFE - Folate, DFE (mcg)

Variable Name:
DR1TFDFE
SAS Label:
Folate, DFE (mcg)
English Text:
Folate as dietary folate equivalents (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 5151 Range of Values 8531 8531
. Missing 1282 9813

DR1TCHL - Total choline (mg)

Variable Name:
DR1TCHL
SAS Label:
Total choline (mg)
English Text:
Total choline (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2909.1 Range of Values 8531 8531
. Missing 1282 9813

DR1TVB12 - Vitamin B12 (mcg)

Variable Name:
DR1TVB12
SAS Label:
Vitamin B12 (mcg)
English Text:
Vitamin B12 (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 110.39 Range of Values 8531 8531
. Missing 1282 9813

DR1TB12A - Added vitamin B12 (mcg)

Variable Name:
DR1TB12A
SAS Label:
Added vitamin B12 (mcg)
English Text:
Added vitamin B12 (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 89.23 Range of Values 8531 8531
. Missing 1282 9813

DR1TVC - Vitamin C (mg)

Variable Name:
DR1TVC
SAS Label:
Vitamin C (mg)
English Text:
Vitamin C (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2008 Range of Values 8531 8531
. Missing 1282 9813

DR1TVD - Vitamin D (D2 + D3) (mcg)

Variable Name:
DR1TVD
SAS Label:
Vitamin D (D2 + D3) (mcg)
English Text:
Vitamin D (D2 + D3) (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 86.3 Range of Values 8531 8531
. Missing 1282 9813

DR1TVK - Vitamin K (mcg)

Variable Name:
DR1TVK
SAS Label:
Vitamin K (mcg)
English Text:
Vitamin K (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 4080.5 Range of Values 8531 8531
. Missing 1282 9813

DR1TCALC - Calcium (mg)

Variable Name:
DR1TCALC
SAS Label:
Calcium (mg)
English Text:
Calcium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
6 to 7337 Range of Values 8531 8531
. Missing 1282 9813

DR1TPHOS - Phosphorus (mg)

Variable Name:
DR1TPHOS
SAS Label:
Phosphorus (mg)
English Text:
Phosphorus (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 11529 Range of Values 8531 8531
. Missing 1282 9813

DR1TMAGN - Magnesium (mg)

Variable Name:
DR1TMAGN
SAS Label:
Magnesium (mg)
English Text:
Magnesium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2725 Range of Values 8531 8531
. Missing 1282 9813

DR1TIRON - Iron (mg)

Variable Name:
DR1TIRON
SAS Label:
Iron (mg)
English Text:
Iron (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.13 to 130.76 Range of Values 8531 8531
. Missing 1282 9813

DR1TZINC - Zinc (mg)

Variable Name:
DR1TZINC
SAS Label:
Zinc (mg)
English Text:
Zinc (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.16 to 116.05 Range of Values 8531 8531
. Missing 1282 9813

DR1TCOPP - Copper (mg)

Variable Name:
DR1TCOPP
SAS Label:
Copper (mg)
English Text:
Copper (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.022 to 20.318 Range of Values 8531 8531
. Missing 1282 9813

DR1TSODI - Sodium (mg)

Variable Name:
DR1TSODI
SAS Label:
Sodium (mg)
English Text:
Sodium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
17 to 21399 Range of Values 8531 8531
. Missing 1282 9813

DR1TPOTA - Potassium (mg)

Variable Name:
DR1TPOTA
SAS Label:
Potassium (mg)
English Text:
Potassium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
68 to 15876 Range of Values 8531 8531
. Missing 1282 9813

DR1TSELE - Selenium (mcg)

Variable Name:
DR1TSELE
SAS Label:
Selenium (mcg)
English Text:
Selenium (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 986.5 Range of Values 8531 8531
. Missing 1282 9813

DR1TCAFF - Caffeine (mg)

Variable Name:
DR1TCAFF
SAS Label:
Caffeine (mg)
English Text:
Caffeine (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2448 Range of Values 8531 8531
. Missing 1282 9813

DR1TTHEO - Theobromine (mg)

Variable Name:
DR1TTHEO
SAS Label:
Theobromine (mg)
English Text:
Theobromine (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2038 Range of Values 8531 8531
. Missing 1282 9813

DR1TALCO - Alcohol (gm)

Variable Name:
DR1TALCO
SAS Label:
Alcohol (gm)
English Text:
Alcohol (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 591.4 Range of Values 8531 8531
. Missing 1282 9813

DR1TMOIS - Moisture (gm)

Variable Name:
DR1TMOIS
SAS Label:
Moisture (gm)
English Text:
Moisture (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
135.95 to 17350.04 Range of Values 8531 8531
. Missing 1282 9813

DR1TS040 - SFA 4:0 (Butanoic) (gm)

Variable Name:
DR1TS040
SAS Label:
SFA 4:0 (Butanoic) (gm)
English Text:
SFA 4:0 (Butanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 5.377 Range of Values 8531 8531
. Missing 1282 9813

DR1TS060 - SFA 6:0 (Hexanoic) (gm)

Variable Name:
DR1TS060
SAS Label:
SFA 6:0 (Hexanoic) (gm)
English Text:
SFA 6:0 (Hexanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.014 Range of Values 8531 8531
. Missing 1282 9813

DR1TS080 - SFA 8:0 (Octanoic) (gm)

Variable Name:
DR1TS080
SAS Label:
SFA 8:0 (Octanoic) (gm)
English Text:
SFA 8:0 (Octanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 14.886 Range of Values 8531 8531
. Missing 1282 9813

DR1TS100 - SFA 10:0 (Decanoic) (gm)

Variable Name:
DR1TS100
SAS Label:
SFA 10:0 (Decanoic) (gm)
English Text:
SFA 10:0 (Decanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10.475 Range of Values 8531 8531
. Missing 1282 9813

DR1TS120 - SFA 12:0 (Dodecanoic) (gm)

Variable Name:
DR1TS120
SAS Label:
SFA 12:0 (Dodecanoic) (gm)
English Text:
SFA 12:0 (Dodecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 26.403 Range of Values 8531 8531
. Missing 1282 9813

DR1TS140 - SFA 14:0 (Tetradecanoic) (gm)

Variable Name:
DR1TS140
SAS Label:
SFA 14:0 (Tetradecanoic) (gm)
English Text:
SFA 14:0 (Tetradecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 18.757 Range of Values 8531 8531
. Missing 1282 9813

DR1TS160 - SFA 16:0 (Hexadecanoic) (gm)

Variable Name:
DR1TS160
SAS Label:
SFA 16:0 (Hexadecanoic) (gm)
English Text:
SFA 16:0 (Hexadecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 91.727 Range of Values 8531 8531
. Missing 1282 9813

DR1TS180 - SFA 18:0 (Octadecanoic) (gm)

Variable Name:
DR1TS180
SAS Label:
SFA 18:0 (Octadecanoic) (gm)
English Text:
SFA 18:0 (Octadecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 42.57 Range of Values 8531 8531
. Missing 1282 9813

DR1TM161 - MFA 16:1 (Hexadecenoic) (gm)

Variable Name:
DR1TM161
SAS Label:
MFA 16:1 (Hexadecenoic) (gm)
English Text:
MFA 16:1 (Hexadecenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 13.915 Range of Values 8531 8531
. Missing 1282 9813

DR1TM181 - MFA 18:1 (Octadecenoic) (gm)

Variable Name:
DR1TM181
SAS Label:
MFA 18:1 (Octadecenoic) (gm)
English Text:
MFA 18:1 (Octadecenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 204.75 Range of Values 8531 8531
. Missing 1282 9813

DR1TM201 - MFA 20:1 (Eicosenoic) (gm)

Variable Name:
DR1TM201
SAS Label:
MFA 20:1 (Eicosenoic) (gm)
English Text:
MFA 20:1 (Eicosenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 5.764 Range of Values 8531 8531
. Missing 1282 9813

DR1TM221 - MFA 22:1 (Docosenoic) (gm)

Variable Name:
DR1TM221
SAS Label:
MFA 22:1 (Docosenoic) (gm)
English Text:
MFA 22:1 (Docosenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.618 Range of Values 8531 8531
. Missing 1282 9813

DR1TP182 - PFA 18:2 (Octadecadienoic) (gm)

Variable Name:
DR1TP182
SAS Label:
PFA 18:2 (Octadecadienoic) (gm)
English Text:
PFA 18:2 (Octadecadienoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 170.285 Range of Values 8531 8531
. Missing 1282 9813

DR1TP183 - PFA 18:3 (Octadecatrienoic) (gm)

Variable Name:
DR1TP183
SAS Label:
PFA 18:3 (Octadecatrienoic) (gm)
English Text:
PFA 18:3 (Octadecatrienoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 16.593 Range of Values 8531 8531
. Missing 1282 9813

DR1TP184 - PFA 18:4 (Octadecatetraenoic) (gm)

Variable Name:
DR1TP184
SAS Label:
PFA 18:4 (Octadecatetraenoic) (gm)
English Text:
PFA 18:4 (Octadecatetraenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 0.635 Range of Values 8531 8531
. Missing 1282 9813

DR1TP204 - PFA 20:4 (Eicosatetraenoic) (gm)

Variable Name:
DR1TP204
SAS Label:
PFA 20:4 (Eicosatetraenoic) (gm)
English Text:
PFA 20:4 (Eicosatetraenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2.461 Range of Values 8531 8531
. Missing 1282 9813

DR1TP205 - PFA 20:5 (Eicosapentaenoic) (gm)

Variable Name:
DR1TP205
SAS Label:
PFA 20:5 (Eicosapentaenoic) (gm)
English Text:
PFA 20:5 (Eicosapentaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2.687 Range of Values 8531 8531
. Missing 1282 9813

DR1TP225 - PFA 22:5 (Docosapentaenoic) (gm)

Variable Name:
DR1TP225
SAS Label:
PFA 22:5 (Docosapentaenoic) (gm)
English Text:
PFA 22:5 (Docosapentaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 1.073 Range of Values 8531 8531
. Missing 1282 9813

DR1TP226 - PFA 22:6 (Docosahexaenoic) (gm)

Variable Name:
DR1TP226
SAS Label:
PFA 22:6 (Docosahexaenoic) (gm)
English Text:
PFA 22:6 (Docosahexaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 4.337 Range of Values 8531 8531
. Missing 1282 9813

DR1_300 - Compare food consumed yesterday to usual

Variable Name:
DR1_300
SAS Label:
Compare food consumed yesterday to usual
English Text:
Was the amount of food that {you/NAME} ate yesterday much more than usual, usual, or much less than usual?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Much more than usual 830 830
2 Usual 6210 7040
3 Much less than usual 1673 8713
7 Refused 0 8713
9 Don't know 70 8783
. Missing 1030 9813

DR1_320Z - Total plain water drank yesterday (gm)

Variable Name:
DR1_320Z
SAS Label:
Total plain water drank yesterday (gm)
English Text:
Total plain water drank yesterday - including plain tap water, water from a drinking fountain, water from a water cooler, bottled water, and spring water.
English Instructions:
Calculated from water consumption records reported as part of the 24-hour dietary recall interview.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 13440 Range of Values 8661 8661
. Missing 1152 9813

DR1_330Z - Total tap water drank yesterday (gm)

Variable Name:
DR1_330Z
SAS Label:
Total tap water drank yesterday (gm)
English Text:
Total tap water drank yesterday - including filtered tap water and water from a drinking fountain.
English Instructions:
Calculated from tap water consumption records reported as part of the 24-hour dietary recall interview.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 13440 Range of Values 8661 8661
. Missing 1152 9813

DR1BWATZ - Total bottled water drank yesterday (gm)

Variable Name:
DR1BWATZ
SAS Label:
Total bottled water drank yesterday (gm)
English Text:
Total bottled water drank yesterday (gm)
English Instructions:
Calculated from bottle water consumption records reported as part of the 24-hour dietary recall interview.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 11310 Range of Values 8661 8661
. Missing 1152 9813

DR1TWS - Tap water source

Variable Name:
DR1TWS
SAS Label:
Tap water source
English Text:
When you drink tap water, what is the main source of the tap water? Is the city water supply (community water supply); a well or rain cistern; a spring; or something else?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Community supply 6033 6033
2 Well or rain cistern 570 6603
3 Spring 124 6727
4 Don't drink tap water 1648 8375
91 Other 0 8375
99 Don't know 408 8783
. Missing 1030 9813

DRD340 - Shellfish eaten during past 30 days

Variable Name:
DRD340
SAS Label:
Shellfish eaten during past 30 days
English Text:
Please look at this list of shellfish. During the past 30 days did you eat any types of shellfish listed on this card? Include any foods that had shellfish in them such as sandwiches, soups, or salads.
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 3761 3761
2 No 4585 8346 DRD360
7 Refused 19 8365 DRD360
9 Don't know 47 8412 DRD360
. Missing 1401 9813

DRD350A - Clams eaten during past 30 days

Variable Name:
DRD350A
SAS Label:
Clams eaten during past 30 days
English Text:
Clams eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 428 428
2 No 3333 3761 DRD350B
. Missing 6052 9813

DRD350AQ - # of times clams eaten in past 30 days

Variable Name:
DRD350AQ
SAS Label:
# of times clams eaten in past 30 days
English Text:
Number of times clams were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 428 428
. Missing 9385 9813

DRD350B - Crabs eaten during past 30 days

Variable Name:
DRD350B
SAS Label:
Crabs eaten during past 30 days
English Text:
Crabs eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 785 785
2 No 2976 3761 DRD350C
. Missing 6052 9813

DRD350BQ - # of times crabs eaten in past 30 days

Variable Name:
DRD350BQ
SAS Label:
# of times crabs eaten in past 30 days
English Text:
Number of times crab was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 785 785
. Missing 9028 9813

DRD350C - Crayfish eaten during past 30 days

Variable Name:
DRD350C
SAS Label:
Crayfish eaten during past 30 days
English Text:
Crayfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 199 199
2 No 3562 3761 DRD350D
. Missing 6052 9813

DRD350CQ - # of times crayfish eaten past 30 days

Variable Name:
DRD350CQ
SAS Label:
# of times crayfish eaten past 30 days
English Text:
Number of times crayfish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 16 Range of Values 199 199
. Missing 9614 9813

DRD350D - Lobsters eaten during past 30 days

Variable Name:
DRD350D
SAS Label:
Lobsters eaten during past 30 days
English Text:
Lobsters eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 412 412
2 No 3349 3761 DRD350E
. Missing 6052 9813

DRD350DQ - # of times lobsters eaten past 30 days

Variable Name:
DRD350DQ
SAS Label:
# of times lobsters eaten past 30 days
English Text:
Number of times lobster was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 10 Range of Values 412 412
. Missing 9401 9813

DRD350E - Mussels eaten during past 30 days

Variable Name:
DRD350E
SAS Label:
Mussels eaten during past 30 days
English Text:
Mussels eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 255 255
2 No 3506 3761 DRD350F
. Missing 6052 9813

DRD350EQ - # of times mussels eaten in past 30 days

Variable Name:
DRD350EQ
SAS Label:
# of times mussels eaten in past 30 days
English Text:
Number of times mussels were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 6 Range of Values 255 255
. Missing 9558 9813

DRD350F - Oysters eaten during past 30 days

Variable Name:
DRD350F
SAS Label:
Oysters eaten during past 30 days
English Text:
Oysters eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 288 288
2 No 3473 3761 DRD350G
. Missing 6052 9813

DRD350FQ - # of times oysters eaten in past 30 days

Variable Name:
DRD350FQ
SAS Label:
# of times oysters eaten in past 30 days
English Text:
Number of times oysters were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 20 Range of Values 288 288
. Missing 9525 9813

DRD350G - Scallops eaten during past 30 days

Variable Name:
DRD350G
SAS Label:
Scallops eaten during past 30 days
English Text:
Scallops eaten during the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 353 353
2 No 3408 3761 DRD350H
. Missing 6052 9813

DRD350GQ - # of times scallops eaten past 30 days

Variable Name:
DRD350GQ
SAS Label:
# of times scallops eaten past 30 days
English Text:
Number of times scallops were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 353 353
. Missing 9460 9813

DRD350H - Shrimp eaten during past 30 days

Variable Name:
DRD350H
SAS Label:
Shrimp eaten during past 30 days
English Text:
Shrimp eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 3254 3254
2 No 507 3761 DRD350I
. Missing 6052 9813

DRD350HQ - # of times shrimp eaten in past 30 days

Variable Name:
DRD350HQ
SAS Label:
# of times shrimp eaten in past 30 days
English Text:
Number of times shrimp was eaten in the last 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 30 Range of Values 3254 3254
. Missing 6559 9813

DRD350I - Other shellfish eaten past 30 days

Variable Name:
DRD350I
SAS Label:
Other shellfish eaten past 30 days
English Text:
Other shellfish ( ex. octopus, squid) eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 220 220
2 No 3541 3761 DRD350J
. Missing 6052 9813

DRD350IQ - # of times other shellfish eaten

Variable Name:
DRD350IQ
SAS Label:
# of times other shellfish eaten
English Text:
Number of times other shellfish (ex. octopus, squid) was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 10 Range of Values 220 220
. Missing 9593 9813

DRD350J - Other unknown shellfish eaten past 30 d

Variable Name:
DRD350J
SAS Label:
Other unknown shellfish eaten past 30 d
English Text:
Other unknown shellfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 16 16
2 No 3745 3761 DRD350K
. Missing 6052 9813

DRD350JQ - # of times other unknown shellfish eaten

Variable Name:
DRD350JQ
SAS Label:
# of times other unknown shellfish eaten
English Text:
Number of times other unknown shellfish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 4 Range of Values 16 16
. Missing 9797 9813

DRD350K - Refused on shellfish eaten past 30 days

Variable Name:
DRD350K
SAS Label:
Refused on shellfish eaten past 30 days
English Text:
Refused to give detailed information on shellfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0
2 No 3760 3760
. Missing 6053 9813

DRD360 - Fish eaten during past 30 days

Variable Name:
DRD360
SAS Label:
Fish eaten during past 30 days
English Text:
Please look at this list of fish. During the past 30 days did you eat any types of fish listed on this card? Include any foods that had fish in them such as sandwiches, soups, or salads.
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 5121 5121
2 No 3216 8337 End of Section
7 Refused 16 8353 End of Section
9 Don't know 58 8411 End of Section
. Missing 1402 9813

DRD370A - Breaded fish products eaten past 30 days

Variable Name:
DRD370A
SAS Label:
Breaded fish products eaten past 30 days
English Text:
Breaded fish products eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 646 646
2 No 4475 5121 DRD370B
. Missing 4692 9813

DRD370AQ - # of times breaded fish products eaten

Variable Name:
DRD370AQ
SAS Label:
# of times breaded fish products eaten
English Text:
Number of times breaded fish products were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 15 Range of Values 646 646
. Missing 9167 9813

DRD370B - Tuna eaten during past 30 days

Variable Name:
DRD370B
SAS Label:
Tuna eaten during past 30 days
English Text:
Tuna eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1890 1890
2 No 3231 5121 DRD370C
. Missing 4692 9813

DRD370BQ - # of times tuna eaten in past 30 days

Variable Name:
DRD370BQ
SAS Label:
# of times tuna eaten in past 30 days
English Text:
Number of times tuna was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 25 Range of Values 1890 1890
. Missing 7923 9813

DRD370C - Bass eaten during past 30 days

Variable Name:
DRD370C
SAS Label:
Bass eaten during past 30 days
English Text:
Bass eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 118 118
2 No 5003 5121 DRD370D
. Missing 4692 9813

DRD370CQ - # of times bass eaten in past 30 days

Variable Name:
DRD370CQ
SAS Label:
# of times bass eaten in past 30 days
English Text:
Number of times bass was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 14 Range of Values 118 118
. Missing 9695 9813

DRD370D - Catfish eaten during past 30 days

Variable Name:
DRD370D
SAS Label:
Catfish eaten during past 30 days
English Text:
Catfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 827 827
2 No 4294 5121 DRD370E
. Missing 4692 9813

DRD370DQ - # of times catfish eaten in past 30 days

Variable Name:
DRD370DQ
SAS Label:
# of times catfish eaten in past 30 days
English Text:
Number of times catfish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 15 Range of Values 827 827
. Missing 8986 9813

DRD370E - Cod eaten during past 30 days

Variable Name:
DRD370E
SAS Label:
Cod eaten during past 30 days
English Text:
Cod eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 559 559
2 No 4562 5121 DRD370F
. Missing 4692 9813

DRD370EQ - # of times cod eaten in past 30 days

Variable Name:
DRD370EQ
SAS Label:
# of times cod eaten in past 30 days
English Text:
Number of times cod was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 15 Range of Values 559 559
. Missing 9254 9813

DRD370F - Flatfish eaten during past 30 days

Variable Name:
DRD370F
SAS Label:
Flatfish eaten during past 30 days
English Text:
Flatfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 257 257
2 No 4864 5121 DRD370G
. Missing 4692 9813

DRD370FQ - # of times flatfish eaten past 30 days

Variable Name:
DRD370FQ
SAS Label:
# of times flatfish eaten past 30 days
English Text:
Number of times flatfish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 21 Range of Values 257 257
. Missing 9556 9813

DRD370G - Haddock eaten during past 30 days

Variable Name:
DRD370G
SAS Label:
Haddock eaten during past 30 days
English Text:
Haddock eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 192 192
2 No 4929 5121 DRD370H
. Missing 4692 9813

DRD370GQ - # of times haddock eaten in past 30 days

Variable Name:
DRD370GQ
SAS Label:
# of times haddock eaten in past 30 days
English Text:
Number of times haddock was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 192 192
. Missing 9621 9813

DRD370H - Mackerel eaten during past 30 days

Variable Name:
DRD370H
SAS Label:
Mackerel eaten during past 30 days
English Text:
Mackerel eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 96 96
2 No 5025 5121 DRD370I
. Missing 4692 9813

DRD370HQ - # of times mackerel eaten past 30 days

Variable Name:
DRD370HQ
SAS Label:
# of times mackerel eaten past 30 days
English Text:
Number of times mackerel was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 14 Range of Values 96 96
. Missing 9717 9813

DRD370I - Perch eaten during past 30 days

Variable Name:
DRD370I
SAS Label:
Perch eaten during past 30 days
English Text:
Perch eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 108 108
2 No 5013 5121 DRD370J
. Missing 4692 9813

DRD370IQ - # of times perch eaten in past 30 days

Variable Name:
DRD370IQ
SAS Label:
# of times perch eaten in past 30 days
English Text:
Number of times perch was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 5 Range of Values 108 108
. Missing 9705 9813

DRD370J - Pike eaten during past 30 days

Variable Name:
DRD370J
SAS Label:
Pike eaten during past 30 days
English Text:
Pike eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 12 12
2 No 5109 5121 DRD370K
. Missing 4692 9813

DRD370JQ - # of times pike eaten in past 30 days

Variable Name:
DRD370JQ
SAS Label:
# of times pike eaten in past 30 days
English Text:
Number of times pike was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 3 Range of Values 12 12
. Missing 9801 9813

DRD370K - Pollock eaten during past 30 days

Variable Name:
DRD370K
SAS Label:
Pollock eaten during past 30 days
English Text:
Pollock eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 147 147
2 No 4974 5121 DRD370L
. Missing 4692 9813

DRD370KQ - # of times pollock eaten in past 30 days

Variable Name:
DRD370KQ
SAS Label:
# of times pollock eaten in past 30 days
English Text:
Number of times pollock was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 16 Range of Values 147 147
. Missing 9666 9813

DRD370L - Porgy eaten during past 30 days

Variable Name:
DRD370L
SAS Label:
Porgy eaten during past 30 days
English Text:
Porgy eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 35 35
2 No 5086 5121 DRD370M
. Missing 4692 9813

DRD370LQ - # of times porgy eaten in past 30 days

Variable Name:
DRD370LQ
SAS Label:
# of times porgy eaten in past 30 days
English Text:
Number of times porgy was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 7 Range of Values 35 35
. Missing 9778 9813

DRD370M - Salmon eaten during past 30 days

Variable Name:
DRD370M
SAS Label:
Salmon eaten during past 30 days
English Text:
Salmon eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1774 1774
2 No 3347 5121 DRD370N
. Missing 4692 9813

DRD370MQ - # of times salmon eaten in past 30 days

Variable Name:
DRD370MQ
SAS Label:
# of times salmon eaten in past 30 days
English Text:
Number of times salmon was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 28 Range of Values 1774 1774
. Missing 8039 9813

DRD370N - Sardines eaten during past 30 days

Variable Name:
DRD370N
SAS Label:
Sardines eaten during past 30 days
English Text:
Sardines eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 215 215
2 No 4906 5121 DRD370O
. Missing 4692 9813

DRD370NQ - # of times sardines eaten past 30 days

Variable Name:
DRD370NQ
SAS Label:
# of times sardines eaten past 30 days
English Text:
Number of times sardines were eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 25 Range of Values 215 215
. Missing 9598 9813

DRD370O - Sea bass eaten during past 30 days

Variable Name:
DRD370O
SAS Label:
Sea bass eaten during past 30 days
English Text:
Sea bass eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 87 87
2 No 5034 5121 DRD370P
. Missing 4692 9813

DRD370OQ - # of times sea bass eaten past 30 days

Variable Name:
DRD370OQ
SAS Label:
# of times sea bass eaten past 30 days
English Text:
Number of times sea bass was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 8 Range of Values 87 87
. Missing 9726 9813

DRD370P - Shark eaten during past 30 days

Variable Name:
DRD370P
SAS Label:
Shark eaten during past 30 days
English Text:
Shark eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 10 10
2 No 5111 5121 DRD370Q
. Missing 4692 9813

DRD370PQ - # of times shark eaten in past 30 days

Variable Name:
DRD370PQ
SAS Label:
# of times shark eaten in past 30 days
English Text:
Number of times shark was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 3 Range of Values 10 10
. Missing 9803 9813

DRD370Q - Swordfish eaten during past 30 days

Variable Name:
DRD370Q
SAS Label:
Swordfish eaten during past 30 days
English Text:
Swordfish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 61 61
2 No 5060 5121 DRD370R
. Missing 4692 9813

DRD370QQ - # of times swordfish eaten past 30 days

Variable Name:
DRD370QQ
SAS Label:
# of times swordfish eaten past 30 days
English Text:
Number of times swordfish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 10 Range of Values 61 61
. Missing 9752 9813

DRD370R - Trout eaten during past 30 days

Variable Name:
DRD370R
SAS Label:
Trout eaten during past 30 days
English Text:
Trout eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 171 171
2 No 4950 5121 DRD370S
. Missing 4692 9813

DRD370RQ - # of times trout eaten in past 30 days

Variable Name:
DRD370RQ
SAS Label:
# of times trout eaten in past 30 days
English Text:
Number of times trout was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 8 Range of Values 171 171
. Missing 9642 9813

DRD370S - Walleye eaten during past 30 days

Variable Name:
DRD370S
SAS Label:
Walleye eaten during past 30 days
English Text:
Walleye eaten during the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 27 27
2 No 5094 5121 DRD370T
. Missing 4692 9813

DRD370SQ - # of times walleye eaten in past 30 days

Variable Name:
DRD370SQ
SAS Label:
# of times walleye eaten in past 30 days
English Text:
Number of times walleye was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 10 Range of Values 27 27
. Missing 9786 9813

DRD370T - Other fish eaten during past 30 days

Variable Name:
DRD370T
SAS Label:
Other fish eaten during past 30 days
English Text:
Other type of fish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1318 1318
2 No 3803 5121 DRD370U
. Missing 4692 9813

DRD370TQ - # of times other fish eaten past 30 days

Variable Name:
DRD370TQ
SAS Label:
# of times other fish eaten past 30 days
English Text:
Number of times other type of fish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 30 Range of Values 1318 1318
. Missing 8495 9813

DRD370U - Other unknown fish eaten in past 30 days

Variable Name:
DRD370U
SAS Label:
Other unknown fish eaten in past 30 days
English Text:
Other unknown type eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 317 317
2 No 4804 5121 DRD370V
. Missing 4692 9813

DRD370UQ - # of times other unknown fish eaten

Variable Name:
DRD370UQ
SAS Label:
# of times other unknown fish eaten
English Text:
Number of times other unknown type of fish was eaten in the past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 30 Range of Values 317 317
. Missing 9496 9813

DRD370V - Refused on fish eaten past 30 days

Variable Name:
DRD370V
SAS Label:
Refused on fish eaten past 30 days
English Text:
Refused to give detailed information on fish eaten during past 30 days
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 0 0
2 No 5120 5120
. Missing 4693 9813

Appendix 1. Changes between WWEIA survey cycles 2005-2006 thru 2013-2014

Variable or feature WWEIA 2005-2006 WWEIA 2007-2008 WWEIA 2009-2010 WWEIA 2011-2012 WWEIA 2013-2014
Number of days of intake data per respondent 2 days 2 days 2 days 2 days 2 days
Nutrients included Food energy and 63 nutrients/food components. Total choline added. Food energy and 64 nutrients/food components. Vitamin D added. Same as 2007-2008 Same as 2007-2008 Same as 2007-2008
Food source (where food was obtained) Collected and released. Codes for 24 food sources; added “fundraiser sales”. Same as 2005-2006 Same as 2005-2006 "Store" (value=1) has been split into three values – 1, 27 and 28. Codes 6 and 7 for cafeterias have revised descriptions. Codes 8 and 9 revised descriptions.
Combination food types Same as 2003-2004 Same as 2003-2004 Same as 2003-2004 Same as 2003-2004 Same as 2003-2004
Eating occasion names Same as 2003-2004 Same as 2003-2004 Same as 2003-2004 Same as 2003-2004 Same as 2003-2004
Special diet variables Same as 2003-2004 Collected and released; 2 new codes: Low carbohydrate diet and High protein diet. Same as 2007-2008 Collected and released 2 new codes: Gluten-free/Celiac diet and Renal/Kidney. Same as 2011-2012
Plain drinking water collected in same manner as other foods and beverages All waters, including tap water and bottled water, were collected during the 24-hour recall and reported in the Individual Foods file, complete with food codes, gram weights and nutrient values. Summary water variables compatible with previous data cycles are included in the Total Nutrient Intake files with the exception of plain carbonated water. Same as 2005-2006 Same as 2005-2006 Same as 2005-2006 Same as 2005-2006
Number of intakes that include only water consumption for the day 3 intakes (1 intake in Day 1 and 2 intakes in Day 2 data), records are included in Individual Foods file. 5 intakes (all in Day 2 data), records are included in Individual Foods file. 4 intakes (all in Day 2 data), records are included in Individual Foods file. 7 intakes (1 in Day 1, 6 in Day 2), records are included in Individual Foods file. 6 intakes (all in Day 2 data), records are included in Individual Foods file.
Number of intakes that include no water or food consumption for the day No such intake reported. 2 intakes (1 intake in Day 1 and 1 intake in Day 2) with no food or water records for the day. Records are not included in the Individual Foods File for these intakes. 1 intake in Day 2 with no food or water records for the day. Record is not included in the Individual Foods File for this intake. No such intake reported. 1 intake in Day 2 with no food or water records for the day. Record is not included in the Individual Foods File for this intake.
Eligible sample for questions on fish/ shellfish consumption in the past 30 days All participants one year or older. Same as 2005-2006 Same as 2005-2006 Same as 2005-2006 Same as 2005-2006
Number of days between the intake day and the day of family interview Not calculated Calculated and released; 2 new continuous variables calculated for both Day 1 and Day 2 Same as 2007-2008 Same as 2007-2008 Same as 2007-2008
Data processing step on salt adjustment Applied Applied No longer applied—for details, go to www.ars.usda.gov/nea/bhnrc/fsrg Same as 2009-2010 Same as 2009-2010
Modification codes: DR1MC
Day 2 Modification codes: DR2MC
Modification Code Description file: DRXMCD
During coding process, predefined recipes for some foods modified to more closely match the food as described by survey participant. These foods assigned a modification code. Same as 2005-2006 Same as 2005-2006 Some modification codes deleted; new food codes addressing modifications added in FNDDS 2011-2012. All remaining modification codes deleted; new food codes addressing modifications added in FNDDS 2013-2014.
Salt used yesterday: DR1STY, day 1; DR2STY, day 2.

Type of salt used yesterday: DR1SKY, day 1; DR2SKY, day 2.
Not asked. Not asked. Not asked. Not asked. Question asked about salt use at the table yesterday and kind of salt to coincide with 24-hour recall.

Appendix 2. Variables in the Individual Foods Files (DR1IFF_H and DR2IFF_H) by Position

Day1 Name Day2 Name Variable Label
SEQN SEQN Respondent sequence number
WTDRD1 WTDRD1 Dietary day one sample weight
WTDR2D WTDR2D Dietary two-day sample weight
DR1ILINE DR2ILINE Food/Individual component number
DR1DRSTZ DR2DRSTZ Dietary recall status
DR1EXMER DR2EXMER Interviewer ID code
DRABF DRABF Breast-fed infant (either day)
DRDINT DRDINT Number of days of intake
DR1DBIH DR2DBIH # of days b/w intake and HH interview
DR1DAY DR2DAY Intake day of the week
DR1LANG DR2LANG Language respondent used mostly
DR1CCMNM DR2CCMNM Combination food number
DR1CCMTX DR2CCMTX Combination food type
DR1_020 DR2_020 Time of eating occasion (HH:MM)
DR1_030Z DR2_030Z Name of eating occasion
DR1FS DR2FS Source of food
DR1_040Z DR2_040Z Did you eat this meal at home?
DR1IFDCD DR2IFDCD USDA food code
DR1IGRMS DR2IGRMS Grams
DR1IKCAL DR2IKCAL Energy (kcal)
DR1IPROT DR2IPROT Protein (gm)
DR1ICARB DR2ICARB Carbohydrate (gm)
DR1ISUGR DR2ISUGR Total sugars (gm)
DR1IFIBE DR2IFIBE Dietary fiber (gm)
DR1ITFAT DR2ITFAT Total fat (gm)
DR1ISFAT DR2ISFAT Total saturated fatty acids (gm)
DR1IMFAT DR2IMFAT Total monounsaturated fatty acids (gm)
DR1IPFAT DR2IPFAT Total polyunsaturated fatty acids (gm)
DR1ICHOL DR2ICHOL Cholesterol (mg)
DR1IATOC DR2IATOC Vitamin E as alpha-tocopherol (mg)
DR1IATOA DR2IATOA Added alpha-tocopherol (Vitamin E) (mg)
DR1IRET DR2IRET Retinol (mcg)
DR1IVARA DR2IVARA Vitamin A, RAE (mcg)
DR1IACAR DR2IACAR Alpha-carotene (mcg)
DR1IBCAR DR2IBCAR Beta-carotene (mcg)
DR1ICRYP DR2ICRYP Beta-cryptoxanthin (mcg)
DR1ILYCO DR2ILYCO Lycopene (mcg)
DR1ILZ DR2ILZ Lutein + zeaxanthin (mcg)
DR1IVB1 DR2IVB1 Thiamin (Vitamin B1) (mg)
DR1IVB2 DR2IVB2 Riboflavin (Vitamin B2) (mg)
DR1INIAC DR2INIAC Niacin (mg)
DR1IVB6 DR2IVB6 Vitamin B6 (mg)
DR1IFOLA DR2IFOLA Total folate (mcg)
DR1IFA DR2IFA Folic acid (mcg)
DR1IFF DR2IFF Food folate (mcg)
DR1IFDFE DR2IFDFE Folate, DFE (mcg)
DR1ICHL DR2ICHL Total choline (mg)
DR1IVB12 DR2IVB12 Vitamin B12 (mcg)
DR1IB12A DR2IB12A Added vitamin B12 (mcg)
DR1IVC DR2IVC Vitamin C (mg)
DR1IVD DR2IVD Vitamin D (D2 + D3) (mcg)
DR1IVK DR2IVK Vitamin K (mcg)
DR1ICALC DR2ICALC Calcium (mg)
DR1IPHOS DR2IPHOS Phosphorus (mg)
DR1IMAGN DR2IMAGN Magnesium (mg)
DR1IIRON DR2IIRON Iron (mg)
DR1IZINC DR2IZINC Zinc (mg)
DR1ICOPP DR2ICOPP Copper (mg)
DR1ISODI DR2ISODI Sodium (mg)
DR1IPOTA DR2IPOTA Potassium (mg)
DR1ISELE DR2ISELE Selenium (mcg)
DR1ICAFF DR2ICAFF Caffeine (mg)
DR1ITHEO DR2ITHEO Theobromine (mg)
DR1IALCO DR2IALCO Alcohol (gm)
DR1IMOIS DR2IMOIS Moisture (gm)
DR1IS040 DR2IS040 SFA 4:0 (Butanoic) (gm)
DR1IS060 DR2IS060 SFA 6:0 (Hexanoic) (gm)
DR1IS080 DR2IS080 SFA 8:0 (Octanoic) (gm)
DR1IS100 DR2IS100 SFA 10:0 (Decanoic) (gm)
DR1IS120 DR2IS120 SFA 12:0 (Dodecanoic) (gm)
DR1IS140 DR2IS140 SFA 14:0 (Tetradecanoic) (gm)
DR1IS160 DR2IS160 SFA 16:0 (Hexadecanoic) (gm)
DR1IS180 DR2IS180 SFA 18:0 (Octadecanoic) (gm)
DR1IM161 DR2IM161 MFA 16:1 (Hexadecenoic) (gm)
DR1IM181 DR2IM181 MFA 18:1 (Octadecenoic) (gm)
DR1IM201 DR2IM201 MFA 20:1 (Eicosenoic) (gm)
DR1IM221 DR2IM221 MFA 22:1 (Docosenoic) (gm)
DR1IP182 DR2IP182 PFA 18:2 (Octadecadienoic) (gm)
DR1IP183 DR2IP183 PFA 18:3 (Octadecatrienoic) (gm)
DR1IP184 DR2IP184 PFA 18:4 (Octadecatetraenoic) (gm)
DR1IP204 DR2IP204 PFA 20:4 (Eicosatetraenoic) (gm)
DR1IP205 DR2IP205 PFA 20:5 (Eicosapentaenoic) (gm)
DR1IP225 DR2IP225 PFA 22:5 (Docosapentaenoic) (gm)
DR1IP226 DR2IP226 PFA 22:6 (Docosahexaenoic) (gm)

Appendix 3. List of Nutrients/Food Components (Unit)

Energy and Macronutrients

Food energy (kcal)
Protein (gm)
Carbohydrate (gm)
Fat, total (gm)
Alcohol (gm)

Sugars, total (gm)
Dietary fiber, total (gm)
Water (moisture) (gm)*

Saturated fatty acids, total (gm)
Monounsaturated fatty acids, total (gm)
Polyunsaturated fatty acids, total (gm)
Cholesterol (mg)

Individual fatty acids:
    4:0 (gm)
    6:0 (gm)
    8:0 (gm)
    10:0 (gm)
    12:0 (gm)
    14:0 (gm)
    16:0 (gm)
    18:0 (gm)
    16:1 (gm)
    18:1 (gm)
    20:1 (gm)
    22:1 (gm)
    18:2 (gm)
    18:3 (gm)
    18:4 (gm)
    20:4 (gm)
    20:5 n-3 (gm)
    22:5 n-3 (gm)
    22:6 n-3 (gm)

Vitamins, Minerals, and Other Components

Vitamin A as retinol activity equivalents (mcg)
Retinol (mcg)
Carotenoids:
    Carotene, alpha (mcg)
    Carotene, beta (mcg)
    Cryptoxanthin, beta (mcg)
    Lycopene (mcg)
    Lutein + zeaxanthin (mcg)
Vitamin E as alpha-tocopherol (mg)
    Added vitamin E as alpha-tocopherol (mg)
Vitamin D (D2 + D3) (mcg)
Vitamin K as phylloquinone (mcg)
Vitamin C (mg)
Thiamin (mg)
Riboflavin (mg)
Niacin (mg)
Vitamin B-6 (mg)
Folate, total (mcg)
    Folate as dietary folate equivalents (mcg)
    Folic acid (mcg)
    Food folate (mcg)
Choline, total (mg)
Vitamin B-12 (mcg)
    Added vitamin B-12 (mcg)

Calcium (mg)
Iron (mg)
Magnesium (mg)
Phosphorus (mg)
Potassium (mg)
Sodium (mg)
Zinc (mg)
Copper (mg)
Selenium (mcg)
Caffeine (mg)
Theobromine (mg)
__________________________________________________________________________

  * Value reflects moisture present in all foods, beverages, and water consumed as a beverage (variables DR1IMOIS, DR2IMOIS, DR1TMOIS, DR2TMOIS)

 

Appendix 4. Adding Food Code Descriptions to Your Files

One supporting file is included with the Individual Foods files: the Food Code Description file (DRXFCD_H).

The DRXFCD_H file includes abbreviated descriptions (up to 60 characters) and complete descriptions (up to 200 characters) associated with each USDA food code included in the Individual Foods files.

The Food Code Description file (DRXFCD_H) contains three variables:

DRXFDCD a numeric value corresponding to DR1IFDCD in the file DR1IFF_H or DR2IFDCD in the file DR2IFF_H;

DRXFCSD a short description (up to 60 characters) of the food code;

DRXFDLD a long description (up to 200 characters) of the food code.

The following SQL code is an example of appending the shorter food code description (here renamed DR1IFCSD) to one of the Individual Foods files using PROC SQL from SAS®. Other SQL implementations may be different.

proc sql;
   create table DR1IFF_H_PLUS as
   select iff.*, desc.DRXFCSD as DR1IFCSD
   from NHANES.DR1IFF_H iff
   left join NHANES.DRXFCD_H desc
   on iff.DR1IFDCD = desc.DRXFDCD
   order by SEQN, DR1ILINE;
quit;

SAS® users may wish to use Proc Format to assign labels to the food codes. The following example generates and saves a picture format for food codes and a separate format for each food code that includes both the food code itself and the short food code description. It is assumed that the user has stored the Individual Foods files and the Food Code Description file in a library called NHANES and wishes to store the formats there as well.

options fmtsearch = (NHANES);

proc format library = library;
   picture foodcode
   low - high = '000-00000';
quit;

data tmp;
   set NHANES.DRXFCD_H;
   length cfoodcode $9 label $72;
   cfoodcode = put(DRXFDCD, foodcode.);
   label = cfoodcode || '  ' || DRXFCSD;
run;

data fmt (keep = fmtname start label);
   set tmp;
   retain fmtname 'DRXFDCD';
   rename DRXFDCD = start;
run;

proc format cntlin = fmt library = library;
run;

__________________________________________________________________________

  SAS® is a registered trademark of SAS Institute, Inc.

 

Appendix 5. Variables in the Total Nutrients Files (DR1TOT_H and DR2TOT_H) by Position

Day1 Name Day2 Name Variable Label
SEQN SEQN Respondent sequence number
WTDRD1 WTDRD1 Dietary day one sample weight
WTDR2D WTDR2D Dietary two-day sample weight
DR1DRSTZ DR2DRSTZ Dietary recall status
DR1EXMER DR2EXMER Interviewer ID code
DRABF DRABF Breast-fed infant (either day)
DRDINT DRDINT Number of days of intake
DR1DBIH DR2DBIH # of days b/w intake and HH interview
DR1DAY DR2DAY Intake day of the week
DR1LANG DR2LANG Language respondent used mostly
DR1MNRSP DR2MNRSP Main respondent for this interview
DR1HELPD DR2HELPD Helped in responding for this interview
DBQ095Z N/A Type of table salt used
DBD100 N/A How often add salt to food at table
DRQSPREP N/A Salt used in preparation?
DR1STY DR2STY Salt used at table yesterday?
DR1SKY DR2SKY Type of salt used yesterday
DRQSDIET N/A On special diet?
DRQSDT1 N/A Weight loss/Low calorie diet
DRQSDT2 N/A Low fat/Low cholesterol diet
DRQSDT3 N/A Low salt/Low sodium diet
DRQSDT4 N/A Sugar free/Low sugar diet
DRQSDT5 N/A Low fiber diet
DRQSDT6 N/A High fiber diet
DRQSDT7 N/A Diabetic diet
DRQSDT8 N/A Weight gain/Muscle building diet
DRQSDT9 N/A Low carbohydrate diet
DRQSDT10 N/A High protein diet
DRQSDT11 N/A Gluten-free/Celiac diet
DRQSDT12 N/A Renal/Kidney diet
DRQSDT91 N/A Other special diet
DR1TNUMF DR2TNUMF Number of foods/beverages reported
DR1TKCAL DR2TKCAL Energy (kcal)
DR1TPROT DR2TPROT Protein (gm)
DR1TCARB DR2TCARB Carbohydrate (gm)
DR1TSUGR DR2TSUGR Total sugars (gm)
DR1TFIBE DR2TFIBE Dietary fiber (gm)
DR1TTFAT DR2TTFAT Total fat (gm)
DR1TSFAT DR2TSFAT Total saturated fatty acids (gm)
DR1TMFAT DR2TMFAT Total monounsaturated fatty acids (gm)
DR1TPFAT DR2TPFAT Total polyunsaturated fatty acids (gm)
DR1TCHOL DR2TCHOL Cholesterol (mg)
DR1TATOC DR2TATOC Vitamin E as alpha-tocopherol (mg)
DR1TATOA DR2TATOA Added alpha-tocopherol (Vitamin E) (mg)
DR1TRET DR2TRET Retinol (mcg)
DR1TVARA DR2TVARA Vitamin A, RAE (mcg)
DR1TACAR DR2TACAR Alpha-carotene (mcg)
DR1TBCAR DR2TBCAR Beta-carotene (mcg)
DR1TCRYP DR2TCRYP Beta-cryptoxanthin (mcg)
DR1TLYCO DR2TLYCO Lycopene (mcg)
DR1TLZ DR2TLZ Lutein + zeaxanthin (mcg)
DR1TVB1 DR2TVB1 Thiamin (Vitamin B1) (mg)
DR1TVB2 DR2TVB2 Riboflavin (Vitamin B2) (mg)
DR1TNIAC DR2TNIAC Niacin (mg)
DR1TVB6 DR2TVB6 Vitamin B6 (mg)
DR1TFOLA DR2TFOLA Total folate (mcg)
DR1TFA DR2TFA Folic acid (mcg)
DR1TFF DR2TFF Food folate (mcg)
DR1TFDFE DR2TFDFE Folate, DFE (mcg)
DR1TCHL DR2TCHL Total choline (mg)
DR1TVB12 DR2TVB12 Vitamin B12 (mcg)
DR1TB12A DR2TB12A Added vitamin B12 (mcg)
DR1TVC DR2TVC Vitamin C (mg)
DR1TVD DR2TVD Vitamin D (D2 + D3) (mcg)
DR1TVK DR2TVK Vitamin K (mcg)
DR1TCALC DR2TCALC Calcium (mg)
DR1TPHOS DR2TPHOS Phosphorus (mg)
DR1TMAGN DR2TMAGN Magnesium (mg)
DR1TIRON DR2TIRON Iron (mg)
DR1TZINC DR2TZINC Zinc (mg)
DR1TCOPP DR2TCOPP Copper (mg)
DR1TSODI DR2TSODI Sodium (mg)
DR1TPOTA DR2TPOTA Potassium (mg)
DR1TSELE DR2TSELE Selenium (mcg)
DR1TCAFF DR2TCAFF Caffeine (mg)
DR1TTHEO DR2TTHEO Theobromine (mg)
DR1TALCO DR2TALCO Alcohol (gm)
DR1TMOIS DR2TMOIS Moisture (gm)
DR1TS040 DR2TS040 SFA 4:0 (Butanoic) (gm)
DR1TS060 DR2TS060 SFA 6:0 (Hexanoic) (gm)
DR1TS080 DR2TS080 SFA 8:0 (Octanoic) (gm)
DR1TS100 DR2TS100 SFA 10:0 (Decanoic) (gm)
DR1TS120 DR2TS120 SFA 12:0 (Dodecanoic) (gm)
DR1TS140 DR2TS140 SFA 14:0 (Tetradecanoic) (gm)
DR1TS160 DR2TS160 SFA 16:0 (Hexadecanoic) (gm)
DR1TS180 DR2TS180 SFA 18:0 (Octadecanoic) (gm)
DR1TM161 DR2TM161 MFA 16:1 (Hexadecenoic) (gm)
DR1TM181 DR2TM181 MFA 18:1 (Octadecenoic) (gm)
DR1TM201 DR2TM201 MFA 20:1 (Eicosenoic) (gm)
DR1TM221 DR2TM221 MFA 22:1 (Docosenoic) (gm)
DR1TP182 DR2TP182 PFA 18:2 (Octadecadienoic) (gm)
DR1TP183 DR2TP183 PFA 18:3 (Octadecatrienoic) (gm)
DR1TP184 DR2TP184 PFA 18:4 (Octadecatetraenoic) (gm)
DR1TP204 DR2TP204 PFA 20:4 (Eicosatetraenoic) (gm)
DR1TP205 DR2TP205 PFA 20:5 (Eicosapentaenoic) (gm)
DR1TP225 DR2TP225 PFA 22:5 (Docosapentaenoic) (gm)
DR1TP226 DR2TP226 PFA 22:6 (Docosahexaenoic) (gm)
DR1_300 DR2_300 Compare food consumed yesterday to usual
DR1_320Z DR2_320Z Total plain water drank yesterday (gm)
DR1_330Z DR2_330Z Total tap water drank yesterday (gm)
DR1BWATZ DR2BWATZ Total bottled water drank yesterday (gm)
DR1TWS DR2TWS Tap water source
DRD340 N/A Shellfish eaten during past 30 days
DRD350A N/A Clams eaten during past 30 days
DRD350AQ N/A # of times clams eaten in past 30 days
DRD350B N/A Crabs eaten during past 30 days
DRD350BQ N/A # of times crabs eaten in past 30 days
DRD350C N/A Crayfish eaten during past 30 days
DRD350CQ N/A # of times crayfish eaten past 30 days
DRD350D N/A Lobsters eaten during past 30 days
DRD350DQ N/A # of times lobsters eaten past 30 days
DRD350E N/A Mussels eaten during past 30 days
DRD350EQ N/A # of times mussels eaten in past 30 days
DRD350F N/A Oysters eaten during past 30 days
DRD350FQ N/A # of times oysters eaten in past 30 days
DRD350G N/A Scallops eaten during past 30 days
DRD350GQ N/A # of times scallops eaten past 30 days
DRD350H N/A Shrimp eaten during past 30 days
DRD350HQ N/A # of times shrimp eaten in past 30 days
DRD350I N/A Other shellfish eaten past 30 days
DRD350IQ N/A # of times other shellfish eaten
DRD350J N/A Other unknown shellfish eaten past 30 d
DRD350JQ N/A # of times other unknown shellfish eaten
DRD350K N/A Refused on shellfish eaten past 30 days
DRD360 N/A Fish eaten during past 30 days
DRD370A N/A Breaded fish products eaten past 30 days
DRD370AQ N/A # of times breaded fish products eaten
DRD370B N/A Tuna eaten during past 30 days
DRD370BQ N/A # of times tuna eaten in past 30 days
DRD370C N/A Bass eaten during past 30 days
DRD370CQ N/A # of times bass eaten in past 30 days
DRD370D N/A Catfish eaten during past 30 days
DRD370DQ N/A # of times catfish eaten in past 30 days
DRD370E N/A Cod eaten during past 30 days
DRD370EQ N/A # of times cod eaten in past 30 days
DRD370F N/A Flatfish eaten during past 30 days
DRD370FQ N/A # of times flatfish eaten past 30 days
DRD370G N/A Haddock eaten during past 30 days
DRD370GQ N/A # of times haddock eaten in past 30 days
DRD370H N/A Mackerel eaten during past 30 days
DRD370HQ N/A # of times mackerel eaten past 30 days
DRD370I N/A Perch eaten during past 30 days
DRD370IQ N/A # of times perch eaten in past 30 days
DRD370J N/A Pike eaten during past 30 days
DRD370JQ N/A # of times pike eaten in past 30 days
DRD370K N/A Pollock eaten during past 30 days
DRD370KQ N/A # of times pollock eaten in past 30 days
DRD370L N/A Porgy eaten during past 30 days
DRD370LQ N/A # of times porgy eaten in past 30 days
DRD370M N/A Salmon eaten during past 30 days
DRD370MQ N/A # of times salmon eaten in past 30 days
DRD370N N/A Sardines eaten during past 30 days
DRD370NQ N/A # of times sardines eaten past 30 days
DRD370O N/A Sea bass eaten during past 30 days
DRD370OQ N/A # of times sea bass eaten past 30 days
DRD370P N/A Shark eaten during past 30 days
DRD370PQ N/A # of times shark eaten in past 30 days
DRD370Q N/A Swordfish eaten during past 30 days
DRD370QQ N/A # of times swordfish eaten past 30 days
DRD370R N/A Trout eaten during past 30 days
DRD370RQ N/A # of times trout eaten in past 30 days
DRD370S N/A Walleye eaten during past 30 days
DRD370SQ N/A # of times walleye eaten in past 30 days
DRD370T N/A Other fish eaten during past 30 days
DRD370TQ N/A # of times other fish eaten past 30 days
DRD370U N/A Other unknown fish eaten in past 30 days
DRD370UQ N/A # of times other unknown fish eaten
DRD370V N/A Refused on fish eaten past 30 days