Table of Contents

Component Description

Nearly 200 toxic air contaminants have been associated with adverse health effects in occupational studies or laboratory studies, but have not been monitored in general population groups. Information on levels of exposure to these compounds is essential to determine the need for regulatory mechanisms to reduce the levels of hazardous air pollutants to which the general population is exposed.

In this component, personal exposure to air toxics (specifically, volatile organic compounds, or VOCs) were assessed through the use of passive exposure monitors (or badges) worn by participants for a period of 48–72 hours. The following 10 VOCs were measured in the personal exposure badges: benzene, chloroform, ethylbenzene, tetrachloroethene, toluene, trichloroethene, o-xylene, m-,p-xylene, 1,4-dichlorobenzene, and methyl tert-butyl ether (MTBE).

Participants began wearing the exposure monitors when they left the mobile examination center (MEC) after completing an examination and returned the badges 48–72 hours later, either at the MEC or the field office. During the return visit, a short questionnaire was administered to participants to assess personal activities and exposures related to VOC measures. The questionnaire data are included in this file.

Eligible Sample

For the survey years, the eligible sample was as follows: in 1999, there was a one-fourth subsample of persons 20–59 years; in 2000, there was a one-third subsample of persons 20–59 years. There were no component-specific exclusions.

Description of Laboratory Methodology

Two different laboratories assessed VOCs in exposure monitors.

Lab 1

A selected group of VOCs in vapor form are measured by a modification of Method 7 of the Occupational Safety and Health Administration (OSHA) of the U. S. Dept. of Labor (1). The method has been modified to use 3M 3520 Organic Vapor Monitors (OVM) (manufactured without glued-on labels) as the sampling media and gas chromatography/mass spectrometry (GC/MS) as the detection device (2). Sampling times have been extended for additional sensitivity. The vapors are quantified by desorption from the collection media with a solution of carbon disulfide and acetone, and identified and measured against a standard curve on the GC/MS. The GC/MS is operated in the selected-ion-monitoring mode (SIM) for additional sensitivity.

Lab 2

Analysis is performed using an HP 5890 Series II Plus GC (Gas Chromatograph) with an HP 5972 MSD (Mass Selective Detector Quadrupole Mass Spectrometer) and EnviroQuant software. We initially used a Restek RTX-1, 60 m, 0.25 mm ID column and a 1-µm film thickness (catalog #10156; Restek Corp., Bellefonte, PA) with good separation for all target analytes. More recently, we have been using a Restek RTX B624, 60 m, 0.25 mm ID with 1.4-µm thickness column (catalog # 10969), which provides even better resolution for separation of the solvent peaks and methylene chloride. With the last column, the gas chromatography-mass spectrometry (GC/MS) conditions are:

  • scan mode from 35 to 260 amu.
  • injection splitless for 0.5 min and splitting 50:1 for the rest of the run.
  • helium carrier; initial pressure 3 psi for 0.5 min, ramp 90 psi/min to 22.5 psi; linear velocity 31.1 cm/sec.
  • injection port temperature 180°C.
  • detector temperature 250°C.
  • temperature program: start at 40°C, hold for 12 min, ramp at 8°C/min to 200°C.

Survey Staff

The NHANES 1999–2000 laboratory staff consists of medical technologists and phlebotomists. The medical technologists hold baccalaureates in medical technology. The American Society for Clinical Pathologists or a similar organization certifies the medical technologists and the phlebotomists. All laboratory staff complete comprehensive training in standardized laboratory procedures before they begin working in the MEC.

Data Collection Forms

Detailed specimen collection and processing instructions are discussed in the NHANES Laboratory/Medical Technologists Procedures Manual (LPM). Each chapter in the LPM specifies the procedure to be used for preparation of the participant, specimen collection, labeling, processing, and preservation, and conditions for specimen transport that are appropriate for that method.

Data Processing and Editing

Automated data collection procedures for the survey were introduced in NHANES 1999–2000. In the mobile examination centers (MECs) and analytical laboratories, data for the laboratory component is recorded directly onto a computerized data collection form. The system is centrally integrated and it allows for ongoing monitoring of much of the data. While the complete blood count and pregnancy analyses are performed in the MEC laboratory, most analyses are conducted elsewhere by 21 laboratories across the United States.

Guidelines have been developed that provide standards for naming variables, filling missing values, and handling missing records. NCHS staff, assisted by contract staff, have developed data-editing specifications that check data sets for valid codes, ranges, and skip pattern consistencies and examine the consistency of values between interrelated variables. Comments have been reviewed and recoded. NCHS staff verifies extremely high and low values whenever possible, and numerous consistency checks are performed. Nonetheless, users should examine the range and frequency of values before analyzing data.

The data editing specifications are as follows:

  • Age and gender checks;
  • Total number of observations complete for each field;
  • No field overlap, truncated values, or weird results;
  • Direct data entry (DDE) errors;
  • Abnormal results confirmed by lab;
  • Test algorithm performed;
  • Checked comment codes to resolve missing results and missing records;
  • All missing results and missing MEC-examined records are accounted;
  • Duplicate records were verified and deleted; and
  • Below detection limit formula was applied.

Laboratory Quality Assurance and Monitoring

MECs

Laboratory team performance is monitored by using several techniques. NCHS and contract consultants use a structured quality assurance (QA) evaluation during unscheduled visits to evaluate both the quality of the laboratory work and the quality-control (QC) procedures. Each laboratory staff person is observed for equipment operation, specimen collection and preparation, and testing procedures, and constructive feedback is given to each staff member. Formal retraining sessions are conducted annually to ensure that required skill levels are maintained.

The NHANES quality control and quality assurance protocols meet the 1988 Clinical Laboratory Improvement Act mandates. Detailed quality control and quality assurance instructions are discussed in the NHANES LPM.

Analytical laboratories

NHANES uses several methods to monitor the quality of the analyses performed by the contract laboratories. In the MEC, these methods include performing second examinations on previously examined participants and blind split samples collected on "dry run" sessions. In addition, contract laboratories randomly perform repeat testing on 2.0% of all specimens.

NCHS developed and distributed a quality control protocol for all the contract laboratories outlining the Westgaard rules used when running NHANES specimens. Progress reports containing any problems encountered during shipping or receipt of specimens, summary statistics for each control pool, QC graphs, instrument calibration, reagents, and any special considerations are submitted to NCHS and Westat quarterly. The reports are periodically reviewed for trends or shifts in the data, and the laboratories are required to explain any identified areas of concern. NCHS/Westat are currently reviewing these reports.

The comparability of the measures between the two laboratories was evaluated through review by an expert panel.

 

Analytic Notes

The values for the analytes are expressed as the weight of the analyte per cubic meter. The number of cubic meters is derived from the period of time the exposure monitor was used. The variable LBAVOCSD indicates the number of hours the monitor was used.

Detection limits varied by time period for these analytes. A derived variable for each analyte, LBD_LC, was created to indicate those results that were below the limit of detection. Detection limits were standardized for 48-hour sample duration. If the result was below the limit of detection, the value provided for the analyte is the detection limit adjusted for the actual duration the badge was exposed (LBAVOCSD) divided by the square root of 2.

Special Notes about this Dataset

Measures for this component were assessed in a randomly selected subsample of participants aged 12–59 years. Specific sample weights for this subsample are included in this data file and should be used when analyzing these data.

The dataset includes 2-year subsample weights. The recommended procedure for variance estimation requires use of stratum and PSU variables (SDMVSTRA and SDMVPSU, respectively), which are included in the demographic data file for each data release. For further information, see the NHANES Analytic Guidelines, June 2004 version at: https://wwwn.cdc.gov/nchs/data/nhanes/nhanes_general_guidelines_june_04.pdf .

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 20 YEARS - 59 YEARS

WTSVOC2Y - VOC subsample 2 yr MEC Weight

Variable Name:
WTSVOC2Y
SAS Label:
VOC subsample 2 yr MEC Weight
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 992877.35227 Range of Values 851 851
. Missing 0 851

LBXZBZ - Benzene (ug/cubic meter)

Variable Name:
LBXZBZ
SAS Label:
Benzene (ug/cubic meter)
English Text:
Benzene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.7294215727 to 119.47 Range of Values 647 647
. Missing 204 851

LBDZBZLC - Benzene comment

Variable Name:
LBDZBZLC
SAS Label:
Benzene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 425 425
1 Result below the limit of detection. 222 647
. Missing 204 851

LBXZCF - Chloroform (ug/cubic meter)

Variable Name:
LBXZCF
SAS Label:
Chloroform (ug/cubic meter)
English Text:
Chloroform (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.2075204684 to 53.9 Range of Values 651 651
. Missing 200 851

LBDZCFLC - Chloroform comment

Variable Name:
LBDZCFLC
SAS Label:
Chloroform comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 523 523
1 Result below the limit of detection. 128 651
. Missing 200 851

LBXZEB - Ethylbenzene (ug/cubic meter)

Variable Name:
LBXZEB
SAS Label:
Ethylbenzene (ug/cubic meter)
English Text:
Ethylbenzene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1380909439 to 2210.39 Range of Values 642 642
. Missing 209 851

LBDZEBLC - Ethylbenzene comment

Variable Name:
LBDZEBLC
SAS Label:
Ethylbenzene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 598 598
1 Result below the limit of detection. 44 642
. Missing 209 851

LBXZTE - Tetrachloroethene (ug/cubic meter)

Variable Name:
LBXZTE
SAS Label:
Tetrachloroethene (ug/cubic meter)
English Text:
Tetrachloroethene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1201773031 to 659.13 Range of Values 642 642
. Missing 209 851

LBDZTELC - Tetrachloroethene comment

Variable Name:
LBDZTELC
SAS Label:
Tetrachloroethene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 446 446
1 Result below the limit of detection. 196 642
. Missing 209 851

LBXZTO - Toluene (ug/cubic meter)

Variable Name:
LBXZTO
SAS Label:
Toluene (ug/cubic meter)
English Text:
Toluene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1.6550842891 to 6280.15 Range of Values 638 638
. Missing 213 851

LBDZTOLC - Toluene comment

Variable Name:
LBDZTOLC
SAS Label:
Toluene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 595 595
1 Result below the limit of detection. 43 638
. Missing 213 851

LBXZTI - Trichloroethene (ug/cubic meter)

Variable Name:
LBXZTI
SAS Label:
Trichloroethene (ug/cubic meter)
English Text:
Trichloroethene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1222064981 to 327.28 Range of Values 644 644
. Missing 207 851

LBDZTILC - Trichloroethene comment

Variable Name:
LBDZTILC
SAS Label:
Trichloroethene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 160 160
1 Result below the limit of detection. 484 644
. Missing 207 851

LBXZOX - o-Xylene (ug/cubic meter)

Variable Name:
LBXZOX
SAS Label:
o-Xylene (ug/cubic meter)
English Text:
o-Xylene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1315342546 to 2320.98 Range of Values 646 646
. Missing 205 851

LBDZOXLC - o-Xylene comment

Variable Name:
LBDZOXLC
SAS Label:
o-Xylene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 602 602
1 Result below the limit of detection. 44 646
. Missing 205 851

LBXZXY - m,p-Xylene (ug/cubic meter)

Variable Name:
LBXZXY
SAS Label:
m,p-Xylene (ug/cubic meter)
English Text:
M,p-Xylene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.2392911663 to 8370.49 Range of Values 646 646
. Missing 205 851

LBDZXYLC - m,p-Xylene comment

Variable Name:
LBDZXYLC
SAS Label:
m,p-Xylene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 623 623
1 Result below the limit of detection. 23 646
. Missing 205 851

LBXZDB - 1,4-dichlorobenzene (ug/cubic meter)

Variable Name:
LBXZDB
SAS Label:
1,4-dichlorobenzene (ug/cubic meter)
English Text:
1,4-dichlorobenzene (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.3074629449 to 2235.57 Range of Values 644 644
. Missing 207 851

LBDZDBLC - 1,4-dichlorobenzene comment

Variable Name:
LBDZDBLC
SAS Label:
1,4-dichlorobenzene comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result below the limit of detection. 439 439
1 Result at or above the limit of detection. 205 644
. Missing 207 851

LBXZMB - MTBE (ug/cubic meter)

Variable Name:
LBXZMB
SAS Label:
MTBE (ug/cubic meter)
English Text:
MTBE (ug/cubic meter)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.3647107863 to 181.68 Range of Values 644 644
. Missing 207 851

LBDZMBLC - MTBE comment

Variable Name:
LBDZMBLC
SAS Label:
MTBE comment
English Text:
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 Result at or above the limit of detection. 192 192
1 Result below the limit of detection. 452 644
. Missing 207 851

LBAVOCSD - VOC badge sample duration-minutes

Variable Name:
LBAVOCSD
SAS Label:
VOC badge sample duration-minutes
English Text:
The time (in minutes) between start time of wearing the badge and stop time of wearing the badge.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2049 to 11421.42 Range of Values 661 661
. Missing 190 851

VTQ015 - Wear the exposure badge at all times?

Variable Name:
VTQ015
SAS Label:
Wear the exposure badge at all times?
English Text:
Did you wear the exposure monitoring badge at all times since you received the badge?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 590 590
2 No 45 635
. Missing 216 851

VTQ020 - Hours badge not worn

Variable Name:
VTQ020
SAS Label:
Hours badge not worn
English Text:
Approximately what was the number of hours that you did not wear the badge?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 52 Range of Values 45 45
. Missing 806 851

VTQ030 - Home has an attached garage?

Variable Name:
VTQ030
SAS Label:
Home has an attached garage?
English Text:
I would like to ask you a few questions about your home. Does your home have an attached garage?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 201 201
2 No 449 650
7 Refused 0 650
9 Don't know 0 650
. Missing 201 851

VTQ040 - Home built less than 5 years ago?

Variable Name:
VTQ040
SAS Label:
Home built less than 5 years ago?
English Text:
Was your home or building originally built less than 5 years ago?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 81 81
2 No 556 637
7 Refused 0 637
9 Don't know 13 650
. Missing 201 851

VTQ050 - Description of street where you live

Variable Name:
VTQ050
SAS Label:
Description of street where you live
English Text:
Which one of the following is the best description of the street that you live on? Is it a...
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Rural or country road 85 85
2 Dead-end residential street 138 223
3 Through residential street 336 559
4 Commercial street 70 629
5 Major highway 20 649
7 Refused 0 649
9 Don't know 1 650
. Missing 201 851

VTQ060 - Natural gas, or electric kitchen stove

Variable Name:
VTQ060
SAS Label:
Natural gas, or electric kitchen stove
English Text:
Does your kitchen stove use natural gas, electricity, or something else?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Natural gas 317 317
2 Electricity 313 630
3 Something else 19 649
7 Refused 1 650
9 Don't know 0 650
. Missing 201 851

VTQ070 - In the past 6 months, have new carpet

Variable Name:
VTQ070
SAS Label:
In the past 6 months, have new carpet
English Text:
In the past 6 months, have any new carpets or rugs been placed in your home or your work area at your workplace or school? Please only consider wall-to-wall carpeting or room-sized rugs.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 114 114
2 No 535 649
7 Refused 0 649
9 Don't know 1 650
. Missing 201 851

VTQ080 - Store paints or fuels inside your home?

Variable Name:
VTQ080
SAS Label:
Store paints or fuels inside your home?
English Text:
Do you store paints or fuels inside your home? Include your basement (and attached garage.)
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 192 192
2 No 458 650
7 Refused 0 650
9 Don't know 0 650
. Missing 201 851

VTQ090 - Hours spent indoors at home?

Variable Name:
VTQ090
SAS Label:
Hours spent indoors at home?
English Text:
During the time you used your exposure badge, about how many hours did you spend indoors at home? Include time spent sleeping.
English Instructions:
Now I am going to ask you a few questions about your activities when you used your exposure badge. This covers the time since you received the exposure badge hours ago up until this appointment.
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
2 to 70 Range of Values 650 650
. Missing 201 851

VTQ100 - Were any windows open in your home?

Variable Name:
VTQ100
SAS Label:
Were any windows open in your home?
English Text:
Were any windows open in your home?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 385 385
2 No 264 649
7 Refused 0 649
9 Don't know 1 650
. Missing 201 851

VTQ110 - Hours spent indoors at work/school

Variable Name:
VTQ110
SAS Label:
Hours spent indoors at work/school
English Text:
About how many hours did you spend indoors at work or at school?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 45 Range of Values 650 650
. Missing 201 851

VTQ120 - Hours spent outdoors

Variable Name:
VTQ120
SAS Label:
Hours spent outdoors
English Text:
About how many hours did you spend outdoors?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 40 Range of Values 650 650
. Missing 201 851

VTQ130 - Pump gas into a car or motor vehicle?

Variable Name:
VTQ130
SAS Label:
Pump gas into a car or motor vehicle?
English Text:
Did you pump gas into a car or other motor vehicle yourself?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 270 270
2 No 378 648
7 Refused 1 649
9 Don't know 1 650
. Missing 201 851

VTQ140 - Time spent at a swimming pool

Variable Name:
VTQ140
SAS Label:
Time spent at a swimming pool
English Text:
Did you spend any time at a swimming pool?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 49 49
2 No 600 649
7 Refused 0 649
9 Don't know 0 649
. Missing 202 851

VTQ150 - In drycleaning shop, drycleaned clothes

Variable Name:
VTQ150
SAS Label:
In drycleaning shop, drycleaned clothes
English Text:
Did you visit a drycleaning shop or wear clothes that had been dry-cleaned within the last week?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 93 93
2 No 555 648
7 Refused 0 648
9 Don't know 1 649
. Missing 202 851

VTQ160 - Near a wood-burning fire >= 10 min

Variable Name:
VTQ160
SAS Label:
Near a wood-burning fire >= 10 min
English Text:
Did you spend 10 or more minutes near a wood-burning fire in a fireplace, wood stove, or outdoors?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 44 44
2 No 602 646
7 Refused 3 649
9 Don't know 0 649
. Missing 202 851

VTQ170 - Near a smoking person >= 10 min

Variable Name:
VTQ170
SAS Label:
Near a smoking person >= 10 min
English Text:
Did you spend 10 or more minutes near a person who was smoking a cigarette, cigar, or pipe?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 313 313
2 No 336 649
7 Refused 0 649
9 Don't know 0 649
. Missing 202 851

VTQ180 - Hot shower for five minutes or longer

Variable Name:
VTQ180
SAS Label:
Hot shower for five minutes or longer
English Text:
Even though you did not use the exposure badge when taking a hot shower, did you take a hot shower for five minutes or longer during this time period?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 558 558
2 No 90 648
7 Refused 1 649
9 Don't know 0 649
. Missing 202 851

VTQ200A - Paints

Variable Name:
VTQ200A
SAS Label:
Paints
English Text:
paints
English Instructions:
During the time you used the exposure badge, did you breathe fumes from or use paint?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 71 71
2 No 577 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200B - Mothballs, moth crystals, or mothflakes

Variable Name:
VTQ200B
SAS Label:
Mothballs, moth crystals, or mothflakes
English Text:
During the time you used the exposure badge, did you breathe fumes from or use mothballs, moth crystals, or mothflakes?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 23 23
2 No 625 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200C - Disinfectant or degreasing cleaners

Variable Name:
VTQ200C
SAS Label:
Disinfectant or degreasing cleaners
English Text:
During the time you used the exposure badge, did you breathe fumes from or use household disinfectant or degreasing cleaners?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 261 261
2 No 387 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200D - Furniture polish

Variable Name:
VTQ200D
SAS Label:
Furniture polish
English Text:
During the time you used the exposure badge, did you breathe fumes from or use furniture polish?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 86 86
2 No 562 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200E - Hairspray

Variable Name:
VTQ200E
SAS Label:
Hairspray
English Text:
During the time you used the exposure badge, did you breathe fumes from or use hairspray?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 240 240
2 No 408 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200F - Fingernail polish or polish remover

Variable Name:
VTQ200F
SAS Label:
Fingernail polish or polish remover
English Text:
During the time you used the exposure badge, did you breathe fumes from or use fingernail polish or fingernail polish remover?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 104 104
2 No 544 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200G - Diesel fuel or kerosene

Variable Name:
VTQ200G
SAS Label:
Diesel fuel or kerosene
English Text:
During the time you used the exposure badge, did you breathe fumes from or use diesel fuel or kerosene?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 74 74
2 No 572 646
7 Refused 0 646
9 Don't know 2 648
. Missing 203 851

VTQ200H - Gasoline

Variable Name:
VTQ200H
SAS Label:
Gasoline
English Text:
During the time you used the exposure badge, did you breathe fumes from or use gasoline?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 287 287
2 No 359 646
7 Refused 0 646
9 Don't know 2 648
. Missing 203 851

VTQ200I - Paint thinner, brush cleaner, stripper

Variable Name:
VTQ200I
SAS Label:
Paint thinner, brush cleaner, stripper
English Text:
During the time you used the exposure badge, did you breathe fumes from or use paint thinner, brush cleaner, or furniture stripper?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 39 39
2 No 609 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851

VTQ200J - Air fresheners or room deodorizers

Variable Name:
VTQ200J
SAS Label:
Air fresheners or room deodorizers
English Text:
During the time you used the exposure badge, did you breathe fumes from or use air fresheners or room deodorizers?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 322 322
2 No 325 647
7 Refused 0 647
9 Don't know 1 648
. Missing 203 851

VTQ200K - Drycleaning fluid or spot remover

Variable Name:
VTQ200K
SAS Label:
Drycleaning fluid or spot remover
English Text:
During the time you used the exposure badge, did you breathe fumes from or use drycleaning fluid or spot remover?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 43 43
2 No 604 647
7 Refused 0 647
9 Don't know 1 648
. Missing 203 851

VTQ200L - Glues or adhesives, hobbies or crafts

Variable Name:
VTQ200L
SAS Label:
Glues or adhesives, hobbies or crafts
English Text:
During the time you used the exposure badge, did you breathe fumes from or use glues or adhesives used for hobbies or crafts?
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 54 54
2 No 594 648
7 Refused 0 648
9 Don't know 0 648
. Missing 203 851