• Judy Kruger, Amal Jama, David M Homa, Stephen D Babb, and Brian A King.
• Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341-3717, United States. Electronic address: ezk0@cdc.gov.
• Prev Med. 2015 Sep 1; 78: 9-13.

ObjectiveTo assess the prevalence and characteristics of smoke-free home and vehicle rules by tobacco use.MethodsData came from the 2012-2013 National Adult Tobacco Survey, a telephone survey of adults aged ≥18. Respondents who reported smoking is 'never allowed' inside their home or any family vehicle were considered to have smoke-free home and vehicle rules, respectively. Prevalence and characteristics of smoke-free rules were assessed overall and by current tobacco use (combustible only, noncombustible only, combustible and noncombustible, no current tobacco use). Assessed characteristics included: sex, age, race/ethnicity, education, marital status, income, region, and sexual orientation.ResultsNationally, 83.7% of adults (n=48,871) had smoke-free home rules and 78.1% (n=46,183) had smoke-free vehicle rules. By tobacco use, prevalence was highest among nonusers of tobacco (homes: 90.8%; vehicles: 88.9%) and lowest among combustible-only users (homes: 53.7%; vehicles: 34.2%). Prevalence of smoke-free home and vehicle rules was higher among males, adults with a graduate degree, and adults living in the West.ConclusionsMost adults have smoke-free home and vehicle rules, but differences exist by tobacco use. Opportunities exist to educate adults about the dangers of secondhand smoke and the benefits of smoke-free environments, particularly among combustible tobacco users.Published by Elsevier Inc.

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