highly significantP < .001
As shown in Table 2 , the mean differences in sBP and dBP before and after PP among responders were highly significant, with a decrease from 130 ± 9.8 to 121 ± 10.2 mmHg (sBP), with a mean drop of 9 mmHg ( P < .001), and a decrease from 79 ± 5.8 to 76 ± 7.5 mmHg (dBP), with a mean drop of 3 mmHg ( P < .001).