Decrease in the prevalence of environmental tobacco smoke exposure in the home during the 1990s in families with children

Objectives. This study explored correlates with and changes in the prevalence of environmental tobacco smoke (ETS) exposure of children in the home. Methods. We used multiple logistic regression to explore ETS exposures as reported in the 1992 and 2000 National Health Interview Survey. Results. ETS exposure in homes with children declined from 35.6% to 25.1% (P<.001) between 1992 and 2000, whereas smoking prevalence declined 26.5% to 23.3%. Home ETS exposures were more prevalent among non-Hispanic Whites than among African Americans (adjusted odds ratio [AOR]=0.702; 95% confidence interval [Cl]=0.614, 0.802), Asian Americans (AOR = 0.534; 95% Cl=0.378, 0.754), and Hispanics (AOR=0.388; 95% Cl=0.294, 0.389). Exposures declined across all groups, with greater gains in higher education and income groups. Conclusions. Home ETS exposure declined sharply between 1992 and 2000, more than would be predicted by the decline in adult smoking prevalence.