Table 2. Change in SBP and DBP from baseline to follow-up.
DBP: diastolic blood pressure, SBP: systolic blood pressure, SD: standard deviation.
*Paired t-test was used to test if there is a significant change in means from baseline to follow-up visits.
| Parameters | SBP, mean ± SD | DBP, mean ± SD | ||||||||
| Visit 1 | Visit 2 | Change | T-value | P-value* | Visit 1 | Visit 2 | Change | T-value | P-value* | |
| Amlodipine (n=2460) | 158.6 ± 17.3 | 140.8 ± 16.2 | -17.8 ± 19.6 | 45.15 | <0.001 | 95.0 ± 8.4 | 85.4 ± 9.2 | -9.5 ± 10.7 | 44.37 | <0.001 |
| Amlodipine+ telmisartan (n=2847) | 161.0 ± 16.9 | 139.4 ± 16.6 | -21.6 ± 19.2 | 60.25 | <0.001 | 95.8 ± 8.3 | 84.4 ± 9.0 | -11.4 ± 10.2 | 59.55 | <0.001 |
| Amlodipine+ atenolol (n=477) | 159.5 ± 18.1 | 138.2 ± 17.2 | -21.3 ± 21.1 | 22.1 | <0.001 | 95.3 ± 8.7 | 83.6 ± 9.4 | -11.7 ± 11.5 | 22.36 | <0.001 |
| Amlodipine+ bisoprolol (n=639) | 161.6 ± 17.8 | 137.9 ± 16.1 | -23.6 ± 19.0 | 31.4 | <0.001 | 96.3 ± 8.7 | 83.4 ± 9.3 | -12.8 ± 10.5 | 31.04 | <0.001 |
| Amlodipine+ metoprolol (n=1356) | 160.6 ± 17.1 | 140.7 ± 16.8 | -19.8 ± 19.7 | 37.14 | <0.001 | 95.9 ± 8.7 | 85.5 ± 9.3 | -10.4 ± 10.6 | 35.84 | <0.001 |
| Amlodipine+ chlorthalidone+ telmisartan (n=429) | 163.0 ± 17.3 | 137.8 ± 16.0 | -25.2 ± 20.9 | 24.92 | <0.001 | 96.0 ± 8.6 | 83.2 ± 8.9 | -12.7 ± 10.9 | 24.22 | <0.001 |
| Amlodipine+ hydrochlorothiazide+ telmisartan (n=1557) | 163.2 ± 17.2 | 139.7 ± 16.8 | -23.4 ± 19.9 | 46.42 | <0.001 | 96.6 ± 9.1 | 84.6 ± 9.2 | -12.0 ± 10.6 | 44.48 | <0.001 |
| Amlodipine+ hydrochlorothiazide+ olmesartan (n=429) | 166.3 ± 17.4 | 141.4 ± 17.8 | -24.9 ± 20.5 | 25.2 | <0.001 | 98.0 ± 8.9 | 85.1 ± 9.4 | -12.9 ± 11.1 | 24.23 | <0.001 |