Conventional | Trigger | Odds ratio (95% CI) | |
Total population | 193 | 93 | |
Indomethacin only | 25 | 14 | 1.90 (0.91–4.09) |
Ligation | 8 | 4 | 2.04 (0.53–9.42) |
Indomethacin +/− ligation (%) | 33 (17) | 18 (9) | 2.01 (1.05–3.93) |
Survivors | 185 | 178 | |
Indomethacin only | 25 | 13 | 1.98 (0.94–4.37) |
Ligation | 7 | 4 | 1.71 (0.43–8.10) |
Indomethacin +/− ligation (%) | 32 (17) | 17 (10) | 1.98 (1.02–3.96) |