Fig 3. Stratified analyses of the association between systolic blood pressure (BP) variability and incident any stroke using different lag periods.

The black squares represent the hazard ratio (HR) of incident any stroke per SD increase in systolic blood pressure variability. The error bars are the 95% confidence intervals (CIs) around the hazard ratios. The models were adjusted for age, sex, mean systolic blood pressure, and propensity score.