Table 1. Demographic and clinical variables in infants born to mothers with or without preeclampsia.
| Parameter | No preeclampsia N = 4874 | Preeclampsia N = 844 | P value |
|---|---|---|---|
| Gestational age | 29.04 (2.66) | 30.97 (2.44) | <0.0001 |
| Birth weight | 1161 (237) | 1161 (245) | 0.9702 |
| Maternal age | 29.60 (5.37) | 31.54 (5.11) | <0.0001 |
| Cesarean section † | 2713 (56.0%) | 774 (91.9%) | <0.0001 |
| Male sex ‡ | 2530 (52.1%) | 388 (46.2%) | 0.0017 |
| SGA | 1263 (25.9%) | 619 (73.3%) | <0.0001 |
| Singleton § | 3538 (72.8%) | 716 (85.2%) | <0.0001 |
| Antenatal steroid ≥ 2 doses ‖ | 1364 (32.4%) | 217 (29.6%) | 0.1286 |
| RDS** | 2213 (46.0%) | 261 (31.7%) | <0.0001 |
| Transfusion | 3070 (63.0%) | 424 (50.2%) | <0.0001 |
| PDA requiring treatment †† | 1708 (35.2%) | 209 (24.9%) | <0.0001 |
| Sepsis §§ | 1220 (25.1%) | 174 (20.7%) | 0.0062 |
| Apgar score at 5 min ≥7 ‡‡ | 3092 (67.5%) | 614 (73.9%) | 0.0003 |
| ROP | 2436 (50.0%) | 349 (41.4%) | <0.0001 |
| Days on IPPV | 14.6 (26.3) | 7.3 (15.3) | <0.001 |
| Days on oxygen, CPAP, or IPPV | 41.9 (38.3) | 26.3 (29.3) | <0.001 |
| Duration of hospitalization | 73.8 (35.9) | 61.8 (27.6) | <0.001 |
Data was presented as mean (SD) or number (%).
Abbreviations: SGA, small for gestational age; RDS, respiratory distress syndrome with surfactant treatment; PDA, patent ductus arteriosus.
†A total of 27 subjects were missing on this variable.
‡ A total of 17 subjects were missing on this variable.
§ A total of 20 subjects were missing on this variable.
‖A total of 774 subjects were missing on this variable.
**A total of 86 subjects were missing on this variable.
††A total of 24 subjects were missing on this variable.
§§A total of 26 subjects were missing on this variable.
‡‡A total of 309 subjects were missing on this variable.