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Among children aged 3–11 years, 67.9% of non-Hispanic blacks were exposed to SHS compared with 37.2% of non-Hispanic whites and 29.9% of Mexican Americans.Ĭonclusion: Overall, SHS exposure in the United States has been reduced by half since 1999–2000. During 2011–2012, SHS was highest among: children aged 3–11 years (40.6%), non-Hispanic blacks (46.8%), persons living below the poverty level (43.2%), and persons living in rental housing (36.8%). During this period, declines were observed for all population subgroups, but disparities exist. Results: Prevalence of SHS exposure in nonsmokers declined from 52.5% during 1999–2000 to 25.3% during 2011–2012. SHS exposure was assessed overall and by age, sex, race/ethnicity, poverty level, education, and whether the respondent owned or rented their housing. SHS exposure among nonsmokers was defined as a serum cotinine level (a metabolite of nicotine) of 0.05–10 ng/mL.
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Methods: National Health and Nutrition Examination Survey (NHANES) data from 1999–2012 were used to examine SHS exposure among the nonsmoking population aged ≥3 years.
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No risk-free level of SHS exposure exists. Sosnoff, MA 2, Lanqing Wang, PhD 2 (Author affiliations at end of text)īackground: Exposure to secondhand smoke (SHS) from burning tobacco causes disease and death in nonsmoking children and adults. On February 3, 2015, this report was posted as an MMWR Early Release on the MMWR website ( ).ĭavid M.