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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 3.1 Change in systolic blood pressure level (mmHg) placebo studies | 6 | 17793 | Mean Difference (IV, Fixed, 95% CI) | ‐9.25 [‐9.73, ‐8.78] |
| 3.2 Change in diastolic blood pressure level (mmHg) placebo studies | 5 | 15209 | Mean Difference (IV, Fixed, 95% CI) | ‐2.47 [‐2.70, ‐2.24] |
