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| Trials with DBP entry criteria only | Trials with SBP entry criteria only | Trials with SBP and/or DBP entry criteria | ||
| Number of trials | 27 | 3 | 3 | |
| SBP | Weighted mean SD at baseline (mm Hg) | 14.2 | 9.2 | 13.0 |
| SD of weighted mean SD (mm Hg) | 1.8 | 1.7 | 2.3 | |
| Number of observations | 76 | 8 | 8 | |
| DBP | Weighted mean SD at baseline (mm Hg) | 4.7 | 4.6 | 5.2 |
| SD of weighted mean SD (mm Hg) | 1.1 | 0.7 | 0.4 | |
| Number of observations | 78 | 8 | 8 |
