Table of Contents

Component Description

The smoking and tobacco use – secondhand smoke exposure (variable name prefix SMQSHS) questionnaire provides information on potential exposure to other persons’ cigarette and tobacco smoke in various indoor environments over the past 7 days.

Eligible Sample

All participants were eligible.

Interview Setting and Mode of Administration

The questions were asked as part of the Sample Person questionnaire, in the home, using the Computer-Assisted Personal interview (CAPI) system for persons 18+ years, and to proxy respondents for persons 0-11 years. Youths 12-17 were asked the questions using CAPI during the MEC Interview.

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.

Analytic Notes

For each environment where exposure to secondhand smoke may have occurred (job, bar, restaurant, other homes, other indoor place) a filter question is used to determine first whether the respondent was in this location during the past 7 days. When the response is “no,” the respondent is not asked the follow-up question about exposure to smokers at the location.  Only adults 18+ years are asked about exposure to persons who smoke at their job or business and at bars. The variable SMAQUEX designates the age group and mode.

Questions that identify persons who smoke inside the home are found in SMQFAM.  Questions on smoking and other tobacco use are located in SMQ and SMQRTU data files. In addition, biologic indicators of tobacco exposure serum cotinine (metabolite of nicotine) and urinary NNAL measurements are available in the COTNAL laboratory data file. Other laboratory measures for a special subset of smokers and nonsmokers are also available.

The NHANES full sample 2-Year MEC Exam Weights (WTMEC2YR) can be used to analyze the 2013-2014 SMQSHS variables in conjunction with the laboratory measurements on tobacco exposure, or any examination-related data. 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 0 YEARS - 150 YEARS

SMQ856 - Last 7-d worked at job not at home?

Variable Name:
SMQ856
SAS Label:
Last 7-d worked at job not at home?
English Text:
I will now ask you about tobacco smoke in other places. During the last 7 days, {were you/was SP} working at a job or business outside of the home?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 3181 3181
2 No 2931 6112 SMQ860
7 Refused 0 6112 SMQ860
9 Don't know 1 6113 SMQ860
. Missing 4062 10175

SMQ858 - Last 7-d at job someone smoked indoors?

Variable Name:
SMQ858
SAS Label:
Last 7-d at job someone smoked indoors?
English Text:
While {you were/SP was} working at a job or business outside of the home, did someone else smoke cigarettes or other tobacco products indoors?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 428 428
2 No 2753 3181
7 Refused 0 3181
9 Don't know 0 3181
. Missing 6994 10175

SMQ860 - Last 7-d spent time in a restaurant?

Variable Name:
SMQ860
SAS Label:
Last 7-d spent time in a restaurant?
English Text:
{I will now ask you about smoking in other places.} During the last 7 days, did {you/SP} spend time in a restaurant?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 4797 4797
2 No 5306 10103 SMQ864
7 Refused 0 10103 SMQ864
9 Don't know 2 10105 SMQ864
. Missing 70 10175

SMQ862 - Last 7-d at rest someone smoked indoors?

Variable Name:
SMQ862
SAS Label:
Last 7-d at rest someone smoked indoors?
English Text:
While {you were/SP was} in a restaurant, did someone else smoke cigarettes or other tobacco products indoors?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 146 146
2 No 4648 4794
7 Refused 0 4794
9 Don't know 3 4797
. Missing 5378 10175

SMQ864 - CHECK ITEM

Variable Name:
SMQ864
English Instructions:
CHECK ITEM: IF SP >=18 YEARS, CONTINUE. OTHERWISE, GO TO SMQ870.
Target:
Both males and females 0 YEARS - 150 YEARS

SMQ866 - Last 7-d spent time in a bar?

Variable Name:
SMQ866
SAS Label:
Last 7-d spent time in a bar?
English Text:
During the last 7 days, {did you/SP} spend time in a bar?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 680 680
2 No 5433 6113 SMQ870
7 Refused 0 6113 SMQ870
9 Don't know 0 6113 SMQ870
. Missing 4062 10175

SMQ868 - Last 7-d in bar someone smoked indoors?

Variable Name:
SMQ868
SAS Label:
Last 7-d in bar someone smoked indoors?
English Text:
While {you were/SP was} in a bar, did someone else smoke cigarettes or other tobacco products indoors?
Target:
Both males and females 18 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 205 205
2 No 475 680
7 Refused 0 680
9 Don't know 0 680
. Missing 9495 10175

SMQ870 - Last 7-d rode in a car?

Variable Name:
SMQ870
SAS Label:
Last 7-d rode in a car?
English Text:
During the last 7 days, did {you/SP} ride in a car or motor vehicle?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 8431 8431
2 No 1674 10105 SMQ874
7 Refused 0 10105 SMQ874
9 Don't know 0 10105 SMQ874
. Missing 70 10175

SMQ872 - Last 7-d someone smoked in car?

Variable Name:
SMQ872
SAS Label:
Last 7-d someone smoked in car?
English Text:
While {you were/SP was} riding in a car or motor vehicle, did someone else smoke cigarettes or other tobacco products?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1359 1359
2 No 7071 8430
7 Refused 0 8430
9 Don't know 1 8431
. Missing 1744 10175

SMQ874 - Last 7-d spent time in another home?

Variable Name:
SMQ874
SAS Label:
Last 7-d spent time in another home?
English Text:
During the last 7 days, did {you/SP} spend time in a home other than {your/his/her} own?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 5118 5118
2 No 4987 10105 SMQ878
7 Refused 0 10105 SMQ878
9 Don't know 0 10105 SMQ878
. Missing 70 10175

SMQ876 - Last 7-d in home someone smoked indoors?

Variable Name:
SMQ876
SAS Label:
Last 7-d in home someone smoked indoors?
English Text:
While {you were/SP was} in a home other than {your/his/her} own, did someone else smoke cigarettes or other tobacco products indoors?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 848 848
2 No 4252 5100
7 Refused 0 5100
9 Don't know 18 5118
. Missing 5057 10175

SMQ878 - Last 7-d in other indoor area?

Variable Name:
SMQ878
SAS Label:
Last 7-d in other indoor area?
English Text:
During the last 7 days,{were you/was SP} in any other indoor area?
English Instructions:
INTERVIEWER: IF RESPONDENT ASKS WHAT IS MEANT BY OR DOESN'T SEEM TO UNDERSTAND "ANY OTHER INDOOR AREA" SAY "OTHER THAN AT WORK, IN A BAR, RESTAURANT, CAR, OTHER MOTOR VEHICLE, OR A HOUSE."
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 5678 5678
2 No 4426 10104
7 Refused 0 10104
9 Don't know 1 10105
. Missing 70 10175

SMQ880 - Last 7-d in other indoor someone smoked?

Variable Name:
SMQ880
SAS Label:
Last 7-d in other indoor someone smoked?
English Text:
While {you were/SP was} in the other indoor area, did someone else smoke cigarettes or other tobacco products?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 413 413
2 No 5262 5675
7 Refused 0 5675
9 Don't know 3 5678
. Missing 4497 10175

SMAQUEX - Questionnaire Mode Flag

Variable Name:
SMAQUEX
SAS Label:
Questionnaire Mode Flag
English Text:
Questionnaire Mode Flag.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 MEC CAPI Youth (12 - 17 Yrs.) 1055 1055
2 Household CAPI Adults (18+ Yrs.) 6113 7168
3 Household CAPI Youth (0 - 11 Yrs.) 2974 10142
. Missing 33 10175