| Stage 1 hypertension | Prehypertension | ||
---|---|---|---|---|
 | Systolic BP | Diastolic BP | Systolic BP | Diastolic BP |
Placebo | 150.4 ± 8.9 | 92.0 ± 8.5 | 128.4 ± 5.1 | 80.4 ± 4.8 |
MPH 1 | 146.6 ± 10.8* | 89.7 ± 8.7* | 130.0 ± 8.1 | 81.1 ± 6.2 |
MPH 2 | 149.9 ± 10.0 | 92.0 ± 7.8 | 128.9 ± 8.4 | 81.2 ± 6.2 |