Table 4.
Survival rates between two periods.
| 1996–2002 | 2003–2010 | P | |
|---|---|---|---|
| n = 36 | n = 42 | ||
| Gestational age, weeks, median (min–max) | 41 (30–41) | 39 (32–41) | 0.032 § |
| Preterm (<37 weeks of gestation), n (%) | 8 (22) | 8 (19) | 0.081* |
| Birthweigt, g, median (min–max) | 3100 (1450–4170) | 3040 (1800–4070) | 0.354§ |
| Gender | |||
| Male, n (%) | 23 (64) | 30 (71) | |
| Female, n (%) | 13 (36) | 12 (29) | 0.456* |
| C-section, n (%) | 23 (64) | 28 (67) | 0.657* |
| Outborn, n (%) | 18 (50) | 16 (38) | 0.071* |
| NICU stay | 10 (1–67) | 16 (1–167) | 0.034 § |
| Time to normalization of PH | 5 (2–25) | 9 (2–160) | 0.0391 § |
| Survival, n (%) | 23 (63.8)% | 30 (71.4) | 0.040** |
§: Mann-Whitney test; *: Chi-Squared test; **: Fisher Exact test; NICU: neonatal intensive care unit; PH; pulmonary hypertension.