Table of Contents

Component Description

The Smoking and Tobacco use– Household Smokers (SMQFAM) section of the Family Questionnaire provides information on exposure to secondhand smoke in the home setting. After an initial screening question asking whether any household member smokes inside of the home, the total number of smokers, total number of cigarette smokers, as well of the total number of cigarettes smoked was obtained.

Eligible Sample

All participants are eligible.

Interview Setting and Mode of Administration

One respondent in each family answered questions about the smoking status of all members of the household. These questions were asked as part of the Family Questionnaire, in the home, 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.

Data Processing and Editing

A small percentage of household respondents inconsistently reported responses to questions, which were adjudicated when possible. Summary variables were created during the editing and review process in order to preserve confidentiality and to establish more analytically useful data.

Analytic Notes

For additional information on secondhand smoke, see OCQ which has a question on workplace exposure to cigarette smoke. Questions on cigarette smoking and other tobacco use are located in SMQ and SMQRTU data files. Two biologic indicators of tobacco exposure serum cotinine (metabolite of nicotine) and urinary NNAL measurements are available in the COTNAL laboratory data file.

The NHANES full sample 2-Year MEC Exam Weights (WTMEC2YR) should be used to analyze the 2011-2012 SMQFAM variables in conjunction with the laboratory measurements on tobacco exposure. 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

SMD410 - Does anyone smoke inside home?

Variable Name:
SMD410
SAS Label:
Does anyone smoke inside home?
English Text:
I would now like to ask you a few questions about smoking. Does anyone who lives here smoke cigarettes, cigars, or pipes anywhere inside this home?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1229 1229
2 No 8486 9715 End of Section
7 Refused 0 9715 End of Section
9 Don't know 0 9715 End of Section
. Missing 41 9756

SMD415 - Total # of smokers inside home

Variable Name:
SMD415
SAS Label:
Total # of smokers inside home
English Text:
Total number of smokers inside home.
English Instructions:
Includes smokers of all tobacco types.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 1 738 738
2 2 386 1124
3 3 or more 105 1229
. Missing 8527 9756

SMD415A - Total # cigarette smokers inside home

Variable Name:
SMD415A
SAS Label:
Total # cigarette smokers inside home
English Text:
Total number of cigarette smokers inside home.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 1 710 710
2 2 368 1078
3 3 or more 92 1170
. Missing 8586 9756

SMD430 - Total # cigarettes smoked inside home

Variable Name:
SMD430
SAS Label:
Total # cigarettes smoked inside home
English Text:
Total number cigarettes per day smoked anywhere inside the home by all cigarette smokers.
English Instructions:
1 PACK EQUALS 20 CIGARETTES. IF NONE, ENTER 0. IF LESS THAN 1 PER DAY, ENTER 1. ENTER NUMBER OF CIGARETTES.
Target:
Both males and females 0 YEARS - 150 YEARS
Hard Edits:
1 to 40
Code or Value Value Description Count Cumulative Skip to Item
1 to 35 Range of Values 1058 1058
40 40 or more 112 1170
. Missing 8586 9756