Figure 5.

Effect of 10 mm Hg higher SBP on incidence of vascular and non-vascular chronic disease

HRs for 10 mm Hg higher usual SBP at ages 40–79 years, adjusted for age at risk (5-year groups), sex, area, education, smoking, alcohol consumption, and body-mass index. For each category, the area of the square is inversely proportional to the variance of the log HR, which also determines the 95% CI. Reasons for exclusion are shown in the table; analyses of each non-vascular disease further exclude participants with a previous diagnosis of the relevant disease at baseline (appendix p 4). SBP=systolic blood pressure. HR=hazard ratio.