Figure 2.

Home smoking restrictions differentially protect against secondhand smoke exposure (SHSe) at home in Seoul and California. (A) shows the predicted probability of any SHSe at home for the respondent, and (B) their children, with 95% CIs by home smoking policy in Seoul, South Korea, and California, United States. Estimates were produced from a logistics regressions (by country) adjusting for gender, education, and age of the household respondent. Predictions were produced by simulation, using 1,000 randomly drawn estimates from the coefficient covariance matrix, with other predictors held at their mean. Trends of increased SHS exposure were statistically significant for all associations, except children in Seoul, South Korea.