Fig. 3From: Association between household solid fuel use and tuberculosis: cross-sectional data from the Mongolian National Tuberculosis Prevalence SurveyCombined effect of smoking and exposure to solid fuels on TB. Adjusted odds ratios were estimated by logistic regression after adjusting for age, gender, education level, marital status, employment, alcohol consumption, contact with an active TB case, underweight status, and previous history of tuberculosis. P < 0.05 was considered statistically significant. ***P < 0.01, compared with non-smoking clean fuel user. aOR adjusted odds ratio, CI confidence interval, % percentageBack to article page