Table of Contents

Component Description

The Disability questionnaire (variable name prefix DLQ) provides respondent-level interview data on serious difficulty hearing, seeing, concentrating, walking, dressing, and running errands.

Eligible Sample

Participants aged 1 year and over were eligible. Questions asked varied by age group.

Interview Setting and Mode of Administration

DLQ was asked in the home, by trained interviewers, using the Computer-Assisted Personal Interview (CAPI) system.

Persons 16 years of age and older and emancipated minors were interviewed directly. A proxy provided information for survey participants who were under 16 years of age and for individuals who could not answer the questions themselves.

Quality Assurance & Quality Control

The CAPI system is programmed with built-in consistency checks to reduce data entry errors. CAPI also uses online help screens to assist interviewers in defining key terms used in the questionnaire.

Data Processing and Editing

The data were reviewed for completeness, consistency, and illogical values.

Analytic Notes

Although these data were collected as part of the household questionnaire, if they are merged with exam data, exam sample weights should be used for the analyses.

Please refer to the NHANES Analytic Guidelines and the on-line NHANES Tutorial for further details on the use of sample weights and other analytic issues.

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 1 YEARS - 150 YEARS

DLQ010 - Have serious difficulty hearing?

Variable Name:
DLQ010
SAS Label:
Have serious difficulty hearing?
English Text:
With this next set of questions, we want to learn about people who have physical, mental, or emotional conditions that cause serious difficulties with their daily activities. Though different, these questions may sound similar to ones I asked earlier. {Are you/Is SP} deaf or {do you/does he/does she} have serious difficulty hearing?
English Instructions:
CAPI INSTRUCTION: IF SP AGE >= 16, DISPLAY "YOU" AND "DO YOU". IF SP AGE <16, DISPLAY "SP" AND "DOES HE/DOES SHE".
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 558 558
2 No 8338 8896
7 Refused 0 8896
9 Don't know 2 8898
. Missing 0 8898

DLQ020 - Have serious difficulty seeing?

Variable Name:
DLQ020
SAS Label:
Have serious difficulty seeing?
English Text:
{Are you/Is SP} blind or {do you/does he/does she} have serious difficulty seeing even when wearing glasses?
English Instructions:
CAPI INSTRUCTION: IF SP AGE >= 16, DISPLAY "YOU" AND "DO YOU". IF SP AGE <16, DISPLAY "SP" AND "DOES HE/DOES SHE".
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 465 465
2 No 8432 8897
7 Refused 0 8897
9 Don't know 1 8898
. Missing 0 8898

DLQ040 - Have serious difficulty concentrating?

Variable Name:
DLQ040
SAS Label:
Have serious difficulty concentrating?
English Text:
Because of a physical, mental, or emotional condition, {do you/does he/does she} have serious difficulty concentrating, remembering, or making decisions?
English Instructions:
CAPI INSTRUCTION: IF SP AGE >= 16, DISPLAY "DO YOU". IF SP AGE <16, DISPLAY "DOES HE/DOES SHE".
Target:
Both males and females 5 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 947 947
2 No 7101 8048
7 Refused 1 8049
9 Don't know 7 8056
. Missing 842 8898

DLQ050 - Have serious difficulty walking?

Variable Name:
DLQ050
SAS Label:
Have serious difficulty walking?
English Text:
{Do you/Does SP} have serious difficulty walking or climbing stairs?
English Instructions:
CAPI INSTRUCTION: IF SP AGE >= 16, DISPLAY "DO YOU". IF SP AGE <16, DISPLAY "DOES SP".
Target:
Both males and females 5 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 993 993
2 No 7060 8053
7 Refused 0 8053
9 Don't know 3 8056
. Missing 842 8898

DLQ060 - Have difficulty dressing or bathing?

Variable Name:
DLQ060
SAS Label:
Have difficulty dressing or bathing?
English Text:
{Do you/Does SP} have difficulty dressing or bathing?
Target:
Both males and females 5 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 412 412
2 No 7644 8056
7 Refused 0 8056
9 Don't know 0 8056
. Missing 842 8898

DLQ080 - Have difficulty doing errands alone?

Variable Name:
DLQ080
SAS Label:
Have difficulty doing errands alone?
English Text:
Because of a physical, mental, or emotional condition, {do you/does he/does she} have difficulty doing errands alone such as visiting a doctor's office or shopping?
English Instructions:
CAPI INSTRUCTION: IF SP AGE >= 16, DISPLAY "DO YOU". IF SP AGE <16, DISPLAY "DOES HE/DOES SHE".
Target:
Both males and females 15 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 613 613
2 No 5677 6290
7 Refused 0 6290
9 Don't know 6 6296
. Missing 2602 8898

DLQ090 - CHECK ITEM

Variable Name:
DLQ090
English Instructions:
CHECK ITEM. IF SP AGE < 18 OR PROXY INTERVIEW, GO TO END OF SECTION. OTHERWISE, CONTINUE.
Target:
Both males and females 5 YEARS - 150 YEARS

DLQ100 - How often do you feel worried or anxious

Variable Name:
DLQ100
SAS Label:
How often do you feel worried or anxious
English Text:
How often do you feel worried, nervous or anxious? Would you say daily, weekly, monthly, a few times a year, or never?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Daily 861 861
2 Weekly 807 1668
3 Monthly 675 2343
4 A few times a year 1967 4310
5 Never 1437 5747
7 Refused 0 5747
9 Don't know 15 5762
. Missing 3136 8898

DLQ110 - Take medication for these feelings?

Variable Name:
DLQ110
SAS Label:
Take medication for these feelings?
English Text:
Do you take medication for these feelings?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 650 650
2 No 5106 5756
7 Refused 0 5756
9 Don't know 6 5762
. Missing 3136 8898

DLQ120 - CHECK ITEM

Variable Name:
DLQ120
English Instructions:
CHECK ITEM. IF DLQ100 = 5, GO TO DLQ140. OTHERWISE, CONTINUE.
Target:
Both males and females 18 YEARS - 150 YEARS

DLQ130 - How worried or anxious were you?

Variable Name:
DLQ130
SAS Label:
How worried or anxious were you?
English Text:
Thinking about the last time you felt worried, nervous or anxious, how would you describe the level of these feelings? Would you say a little, a lot, or somewhere in between?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 A little 2114 2114
2 A lot 585 2699
3 Somewhere in between a little and a lot 1617 4316
7 Refused 0 4316
9 Don't know 9 4325
. Missing 4573 8898

DLQ140 - How often do you feel depressed?

Variable Name:
DLQ140
SAS Label:
How often do you feel depressed?
English Text:
How often do you feel depressed? Would you say daily, weekly, monthly, a few times a year, or never?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Daily 319 319
2 Weekly 410 729
3 Monthly 475 1204
4 A few times a year 1818 3022
5 Never 2725 5747
7 Refused 1 5748
9 Don't know 14 5762
. Missing 3136 8898

DLQ150 - Take medication for depression?

Variable Name:
DLQ150
SAS Label:
Take medication for depression?
English Text:
Do you take medication for depression?
English Instructions:
INTERVIEWER: MEDICATION FOR DEPRESSION IN THIS QUESTION INCLUDES ALL PRESCRIPTION AND NON-PRESCRIPTION DRUGS.
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 583 583
2 No 5174 5757
7 Refused 0 5757
9 Don't know 5 5762
. Missing 3136 8898

DLQ160 - CHECK ITEM

Variable Name:
DLQ160
English Instructions:
CHECK ITEM. IF DLQ140 = 5, GO TO END OF SECTION. OTHERWISE, CONTINUE.
Target:
Both males and females 18 YEARS - 150 YEARS

DLQ170 - How depressed did you feel?

Variable Name:
DLQ170
SAS Label:
How depressed did you feel?
English Text:
Thinking about the last time you felt depressed, how depressed did you feel? Would you say a little, a lot, or somewhere in between?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 A little 1457 1457
2 A lot 473 1930
3 Somewhere in between a little and a lot 1095 3025
7 Refused 0 3025
9 Don't know 12 3037
. Missing 5861 8898