Fig. 3.

Adjusted mortality risks for different BMI, high blood pressure, and hyperglycemia categories for overall subjects, non-smokers, men, and women — each stratified by age. BMI classification: underweight: <18.5 kg/m², low normal: 18.5–21.9 kg/m², normal: 22–23.9 kg/m², overweight: 24–26.9 kg/m², obese1: 27–29.9 kg/m², obese2: ≥ 30 kg/m². The hazards ratios shown in Fig. 3 were derived from Cox proportional hazards models adjusted for gender, age, education level, smoking status, physical activity, and drinking status. The P value for interaction between BMI and sex is 0.3168, 0.6538, 0.0520, 0.1910, and 0.0387 for age group 20–39, 40–49, 50–59, 60–69, and ≥70, respectively