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Meta-analysis characteristics: comparison to original review
| Original Review (39 guidelines) | Updated Review (24 Reviews) | |
|---|---|---|
| RCTs only | 4 (40%) | 12 (50%) |
| Final outcomes | 6 (60%) | 20 (83%) |
| Lumping of interventions | 7 (70%) | 12 (50%) |
| Random effects meta-analysis | 8 (80%) | 19 (79%) |
| Fixed effects meta-analysis | 1 (10%) | 2 (8%) |
| Forest plots for presentation | 9 (90%) | 21 (88%) |
| Assessed publication bias | 1 (10%) | 3 (13%) |
