Table 2 Comparing the outcome of PDA ligation after 1 or more courses of prostaglandin synthetase inhibitors
Parameter | Ligation after 1 course of PSI (n = 28) | Ligation after >1 course of PSI (n = 33) | p value |
|---|---|---|---|
Age at operation. Median (95% CI) | 24 (21–27) days | 31 (25–44) days | 0.004* |
Total days in oxygen. Median (95% CI) | 85.5 (58–120) | 119 (89–175) | 0.09* |
Incidence of CLD | 19 (68%) | 28 (85%) | 0.14¥ |
Deaths | 7 (25%) | 8 (24%) | 1.0¥ |