Fig. 3

The relationship between each SD increment of 365-day outdoor air pollutants exposure and depressive symptoms in multivariate models: modification by indoor fuel use types. Notes: *p < 0.05, **p < 0.001. The p-value is the multiplicative interaction. Abbreviations: OR, odds ratio; CI, confidence interval. Multivariate logistic regression adjusted for age, gender, smoking status, drinking status, chronic disease (hypertension, heart disease, stroke, diabetes, cancer, and dyslipidemia), race, marriage status, education level, residence, and annual household income.