Figure 1. Hazard ratios (HRs) and 95% confidence intervals (CIs) for incident MetS and its components according to alcohol consumption by smoking status in men. Closed circles, non-smokers; open circles, current smokers. Multivariate Cox proportional hazards model was adjusted for age, residential location, household income, education level, physical activity, BMI, energy intake, fruit intake, meat intake, refined grain intake, whole grain intake, and dairy intake (^*P < 0.05; ^**P < 0.01; ^***P < 0.0001 versus never drinkers). Alcohol consumption was never, light (0–15 g/day), moderate (15<–40 g/day), and heavy (>40 g/day). BMI, body mass index; MetS, metabolic syndrome.