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| Variables | Suspected (n = 88) | Control (n = 70) | P |
| Gestational age, mean ± SEM (week) | 31.60±0.44 | 33.78±0.31 | 0.000 |
| Birth weight, mean ± SEM (g) | 1598.63±88.43 | 2101.91±62.53 | 0.000 |
| Male (female) | 58 (30) | 46 (24) | 0.980 |
| 1-min Apgar score, median (range) | 7 (5–10) | 7 (7–10) | 0.003 |
| 5-min Apgar score, median (range) | 8 (6–10) | 10 (9–10) | 0.045 |
| Length of stay, mean ± SEM (day) | 20.54±2.26 | 15.67±1.87 | 0.102 |
