| Characteristic | n/N (%) |
|---|---|
| Weighting of studies | |
| Inverse variance | 1/9 (11.1) |
| Not reported | 8/9 (88.9) |
| Adjustment for covariates | 2/9 (22.2) |
| Raw data published | 8/9 (88.9) |
| Manuscript | 5/8 (62.5) |
| Online supplement | 3/8 (37.5) |
| Heterogeneity assessed in traditional meta-analysis | 4/8 (50.0) |
| I2 | 2/4 (50.0) |
| Cochrane-Q statistic and I2 | 1/4 (25.0) |
| Riley Day test | 1/4 (25.0) |
| Heterogeneity assessed in network meta-analysis | 2/9 (22.2) |
| Tau2 | 1/2 (50.0) |
| Covariance and SE | 1/2 (50.0) |
| Inconsistency evaluation | 8/9 (88.9) |
| Comparison to traditional or prior meta-analysis | 5/8 (62.5) |
| Incoherence statistic | 2/8 (25.0) |
| T-test | 1/8 (12.5) |
From: Results
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