Figure 1.

Dynamic analysis of changes in blood pressure of the two groups during the intervention. The blood pressure in both groups from 1 month to 12 months of intervention was dynamically assessed and the inter-group difference was compared. The results showed that SBP (A) and DBP (B) of the study group were significantly lower than those of the control group at each observation point between 1 month and 12 months of intervention (P<0.05). # represents a statistically significant difference between groups for the same index at the same time.