Table 2.
Outcomes: Comparison between the Groups
| Characteristics | Male | Female | p-value | ||
|---|---|---|---|---|---|
| Mean (days) | SD | Mean (days) | SD | ||
| LOS | 57.3 | 34.3 | 54.1 | 30.3 | 0.428 |
| Total ventilation | 18.9 | 26.5 | 15.9 | 21.9 | 0.246 |
| Invasive ventilation | 9.7 | 18.7 | 8.6 | 16 | 0.578 |
| O2 enrichment | 25.6 | 31.3 | 23.8 | 27.3 | 0.585 |
| Total | N (%) | Total | N (%) | p value | |
| SRT | 79 | 43 (54.4) | 79 | 43 (54.4) | 1.000 |
| RDS | 78 | 52 (66.7) | 78 | 52 (66.7) | 1.000 |
| BPD | 78 | 17 (21.8) | 78 | 15 (19.2) | 0.744 |
| NEC | 78 | 2 (2.6) | 78 | 1 (1.3) | 0.344 |
| ROP | 69 | 13 (18.8) | 66 | 9 (13.6) | 0.625 |
| PVH/IVH | 73 | 5 (6.8) | 72 | 5 (6.9) | 1.000 |
| PVL | 58 | 2 (3.4) | 60 | 3 (5) | 1.000 |
| Early onset sepsis | 78 | 3 (3.8) | 78 | 0 (0) | 0.250 |
| Late onset sepsis | 75 | 4 (5.3) | 74 | 7 (9.5) | 0.344 |
| Mortality | 79 | 9 (11.4) | 79 | 11 (13.9) | 0.727 |
| Mean | SD | Mean | SD | p value | |
| Outcome score | 0.6 | 0.8 | 0.5 | 0.8 | 0.394 |
Total ventilation (days) includes nasal CPAP and invasive ventilation. Early onset sepsis refers to sepsis presenting in the first 72 h of life. Late onset sepsis refers to sepsis presenting after 72 h of life. Outcome score is a calculated score between 0 and 6, based on six parameters (mortality, BPD, NEC, ROP stages 2–4, PVH/IVH grades 3–4, PVL) with a weighted value of 0–1. BPD bronchopulmonary dysplasia, CPAP continuous positive airway pressure, LOS length of stay (hospitalization days), NEC – necrotizing enterocolitis, PVH/IVH periventricular/intraventricular hemorrhage grade 3–4, PVL periventricular leukomalacia, RDS respiratory distress syndrome, ROP retinopathy of prematurity stages 2–4, SD standard deviation, SRT surfactant replacement therapy