Association between second-hand smoke exposure and depressive symptoms among Japanese adults: a cross-sectional study
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/= 5 points. We performed a multivariable Poisson regression analysis to obtain adjusted prevalence ratios (PRs) and 95% confidence intervals (CIs) for depressive symptoms.ResultsOverall, 5,121 participants (4,547 non-smokers and 574 smokers) were included whose mean age was 63.6 years (SD = 10.3 years) for non-smokers and 59.33 years (SD = 10.2 years) for smokers. The association between second-hand smoking and depressive symptoms was significant among non-smokers, but not among smokers. Among non-smokers, PRs (95% CIs) compared with "almost never" were 1.25 (1.09 - 1.42) for "sometimes," 1.41 (1.09 - 1.84) for "almost every day" (p for trend < 0.001), and among smokers, 1.30 (0.82 - 2.06) for "sometimes," 1.44 (0.90 - 2.33) for "almost every day" (p for trend = 0.144).ConclusionsSecond-hand smoking and depressive symptoms were associated among non-smokers. Our findings indicate the importance of tobacco smoke control for mental health., Acemap">