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Quality of evidence for secondary outcomes categorised by conclusiveness
| Characteristic | All n = 89 n (%) | Conclusive n = 46 n (%) | Inconclusive n = 43 n (%) |
| High-quality evidence for any secondary outcome | 16 (18) | 11 (24) | 5 (11) |
| Moderate-quality evidence for any secondary outcome | 27 (30) | 19 (41) | 8 (19) |
| Low-quality evidence for any secondary outcome | 33 (37) | 14 (31) | 19 (44) |
| Very low-quality evidence for any secondary outcome | 13 (15) | 2 (4) | 11 (26) |
