Title: Smoking – Household Smokers
Contact Number: 1-866-441-NCHS
Years of Content: 2009
First Published: September, 2011
Access Constraints: None
Use Constraints: None
Geographic Coverage: National
Subject:Exposure inside the home to cigarettes and other tobacco products (i.e., secondhand smoke)
Record Source: NHANES 2009
Survey Methodology: NHANES 2009
is a stratified multistage probability sample of the civilian non-institutionalized population of the U.S.
Medium: NHANES Web site; SAS transport files
The Smoking and Tobacco use - Household Smokers (SMQFAM) section of the Family Questionnaire provides information on exposure to secondhand smoke. After an initial screening question asking whether any household member smokes any tobacco products inside of the home, information about the total number of smokers, total number of cigarette smokers, as well of the total number of cigarettes smoked was obtained.
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 in the home, by trained interviewers, using the Computer-Assisted Personal Interviewing (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
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. A small percentage of household respondents reported inconsistent responses to questions. These inconsistencies 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.
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. Laboratory serum cotinine (metabolite of nicotine) measurements are available in COTNAL laboratory data file.
The NHANES full sample 2-Year MEC Exam Weights (WTMEC2YR) should be used to analyze the SMQRTU Variables.
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.