Fig. 2

The mean evening systolic (a) and diastolic (b) self-measured home blood pressure. Error bars indicate the one-sided 95% confidence interval. Heterogeneity tests among the cohorts were not significant (corrected P ≥ 0.28), with the exception of untreated men aged 60–64 years (corrected P = 0.0091) and 75–79 years (corrected P = 0.033)