Fig. 2

Dose–response relationship between BMI and HBP. BMI and HBP outcomes in the total study population (a), male study population (b) and female study population (c). The associations were adjusted for age, marital status, alcohol consumption, smoking, physical activity, area, cancer, stroke, psychotic illness and blood glucose. The solid lines and gray areas represent the estimated ORs and their 95% CIs. The gray dashed lines represent the corresponding BMI when the OR is 1, and the black dashed lines represent the point where the slope suddenly decreases the most, corresponding to the BMI