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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Length of hospital stay | 4 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
| 1.1 Azithromycin versus placebo | 3 | 350 | Mean Difference (IV, Random, 95% CI) | ‐0.58 [‐1.18, 0.02] |
| 1.2 Erythromycin versus placebo | 1 | 196 | Mean Difference (IV, Random, 95% CI) | 0.70 [0.22, 1.18] |
