Neonatal Demographic Data (n = 3144): Cases and Matched Controls
| Characteristic | Controls (n = 2357), n (%) | NEC cases (n = 787), n (%) | χ2P | Total (n = 3144), n (%) |
|---|---|---|---|---|
| Race | 1182 (50.2) | 395 (50.2) | .9837 | 1577 (50.2) |
| Black | ||||
| Gender | 1213 (51.5) | 374 (47.5) | .0555 | 1587 (50.5) |
| Male | ||||
| Site of birth | 257 (10.9) | 121 (15.4) | .0008 | 378 (12.0) |
| Outborn | ||||
| 5-min Apgar score | 796 (33.8) | 268 (34.1) | .8851 | 1064 (33.8) |
| <7 | ||||
| Postnatal steroids | 592 (25.1) | 212 (26.9) | .3106 | 804 (25.6) |
| Yes | ||||
| Birth weight | .9999 | |||
| 401–750 g | 776 (32.9) | 260 (33.0) | 1036 (33) | |
| 751–1000 g | 696 (29.5) | 232 (29.5) | 928 (29.5) | |
| 1001–1250 g | 510 (21.6) | 170 (21.6) | 680 (21.6) | |
| 1251–1500 g | 375 (15.9) | 125 (15.9) | 500 (15.9) |