Fig. 2

Average systolic and diastolic blood pressure (SBP, DBP, respectively) with standard deviation (SD) before and after intervention. A indicates analysis for general population (N = 797). B, C indicates analysis for the hypertension group (N = 355) and normotension with high-risk group (N = 422), respectively. The unit of BP is mmHg. The gray vertical lines indicate the 95% confidence interval (CI)