Table 2 Summary estimates of the subgroup meta-analysis
From: Interventions in hypertension: systematic review and meta-analysis of natural and quasi-experiments
| Â | SBP | DBP | ||||
|---|---|---|---|---|---|---|
| Â | No. of Studies | Effect size, mean change, mmHg (95% CI) | I2, % | No. of Studies | Effect size, mean change, mmHg (95% CI) | I2, % |
Subgroup meta-analysis by intervention type | ||||||
 Education and counseling | 12 | −4.07 (− 6.83, − 1.32) | 89.5 | 12 | −2.64 (− 4.22, − 1.06) | 86.3 |
 Education, counseling and management | 6 | −5.34 (−7.35, − 3.33) | 78.2 | 6 | −3.23 (− 5.51, − 0.96) | 94.8 |
 Screening and referral for management | 5 | − 1.66 (− 2.77, − 0.55) | 93.3 | 5 | −0.86 (− 1.76, 0.05) | 94.7 |
Subgroup meta-analysis by intervention setting | ||||||
 Community | 10 | −3.77 (− 6.17, − 1.37) | 84.6 | 10 | −1.58 (− 2.79, − 0.36) | 75.6 |
 Health center | 8 | − 3.77 (− 5.78–1.76) | 96.3 | 8 | −2.57 (− 4.07, − 1.06) | 97.0 |
 Nation | 2 | − 2.51 (− 2.77, − 2.26) | 0.0 | 2 | −1.29 (− 1.72, − 0.85) | 67.7 |
 Organization | 4 | −2.97 (− 4.86, − 1.09) | 0.0 | 4 | −3.92 (− 5.80, − 2.04) | 4.3 |
Subgroup meta-analysis by intervention duration | ||||||
 Short duration | 12 | − 6.25 (− 9.28, − 3.21) | 87.1 | 12 | − 3.54 (− 5.21, − 1.87) | 84.3 |
 Long duration | 12 | −1.89 (− 2.80, − 0.97) | 92.3 | 12 | − 1.33 (− 2.11, − 0.55) | 94.9 |