Table 3. The secondary outcomes.
| NIPPV (143) | NCPAP (143) | Odds Ratio | 95% confidence interval | P-value | |
|---|---|---|---|---|---|
| death (yes: no; %) | 7:136(4.9%) | 12:131(8.4%) | 5.040 | 0.866–29.345 | 0.302 |
| BPD (yes: no; %) | 2:141(1.4%) | 2:141(1.4%) | 0.986 | 0.966–1.006 | 1.000 |
| Frequency of surfactant | 1.6 ± 0.9 | 1.5 ± 0.9 | – | (−0.047)−0.187 | 0.240 |
| Air leak (yes: no; %) | 4:139(2.8%) | 3:140(2.1%) | 0.971 | 0.944–0.999 | 1.000 |
| ROP (yes: no; %) | 7:136(4.9%) | 9:134(6.3%) | 2.667 | 0.286–24.905 | 0.791 |
| NEC (yes: no; %) | 9:134(6.3%) | 11:132(7.7%) | 3.968 | 0.717–21.959 | 0.804 |
| IVH (yes: no; %) | 34:109(23.8%) | 29:114(20.3%) | 1.602 | 0.649–3.953 | 0.551 |
| Sepsis (yes: no; %) | 39:104(27.3%) | 44:99(30.8%) | 1.616 | 0.745–3.507 | 0.583 |
| PDA (yes: no; %) | 13:130(9.1%) | 20:123(14.0%) | 1.131 | 0.231–5.529 | 0.265 |
bronchopulmonary dysplasia (BPD), patent ductus arteriosus (PDA), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH).