X-ray grade ( 3 or 4) at six hours
| Trial | Prophylaxis | Rescue | Odds Ratio | 95% CI low | 95% CI High |
|---|---|---|---|---|---|
| Egberts12 | 14/75 | 26/72 | 0.41 | 0.20 | 0.86 |
| Walti14 | 18/128 | 23/119 | 0.64 | 0.33 | 1.26 |
| Bevilacqua15 | 38/136 | 54/132 | 0.56 | 0.34 | 0.93 |
| Totals | 70/339 (21%) | 104/323 (32%) | 0.54 | 0.38 | 0.77 |