Table of Contents

Component Description

The dermatology questionnaire (variable name prefix DEQ) section provides personal interview data on sun exposure and sun protective behavior.

Eligible Sample

All participants aged 20-59 years in the NHANES sample were eligible.

Interview Setting and Mode of Administration

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

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. The NHANES 2021-2022 questionnaires are available on the NHANES website.

Data Processing and Editing

Frequency counts were verified during the preparation of the file.

Analytic Notes

Analysts should be aware that some questions may have very few responses. Even with two years of data collection, there may not be sufficient sample size for such variables to be analytically useful. In these cases, it may be necessary to combine more than two years of data to conduct analysis. 

Although dermatology data were collected as part of the household questionnaire, if they are merged with the MEC 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 20 YEARS - 59 YEARS

DEQ034A - Stay in the shade?

Variable Name:
DEQ034A
SAS Label:
Stay in the shade?
English Text:
When {you go/SP goes} outside on a very sunny day, for more than one hour, how often {do you/does SP} Stay in the shade?
English Instructions:
HAND CARD DEQ2A
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Always 366 366
2 Most of the time 1153 1519
3 Sometimes 1768 3287
4 Rarely, or 697 3984
5 Never? 283 4267
6 Don't go out in the sun 31 4298 End of Section
77 Refused 0 4298
99 Don't know 4 4302
. Missing 3 4305

DEQ034C - Wear a long sleeved shirt

Variable Name:
DEQ034C
SAS Label:
Wear a long sleeved shirt
English Text:
Wear a long sleeved shirt? Would you say . . .
English Instructions:
HAND CARD DEQ2A
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Always 201 201
2 Most of the time 347 548
3 Sometimes 1092 1640
4 Rarely, or 1165 2805
5 Never? 1465 4270
7 Refused 0 4270
9 Don't know 1 4271
. Missing 34 4305

DEQ034D - Use sunscreen?

Variable Name:
DEQ034D
SAS Label:
Use sunscreen?
English Text:
Use sunscreen? Would you say . . .
English Instructions:
HAND CARD DEQ2A
Target:
Both males and females 20 YEARS - 59 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Always 561 561
2 Most of the time 780 1341
3 Sometimes 992 2333
4 Rarely, or 721 3054
5 Never? 1217 4271
7 Refused 0 4271
9 Don't know 0 4271
. Missing 34 4305