Table 1. Distribution of epidemiological risk-factors for NEC in our cohort.
Data is represented as mean ± standard deviation or as raw numbers (n) with percentages (%).
| Variable | Infants without NEC (n=585) | Infants with NEC (n=52) | P Value |
|---|---|---|---|
|
| |||
| Gestational age (wk) | 28.0 ± 2.4 | 27.4 ± 3.4 | 0.30 |
|
| |||
| Birth-weight (grams) | 1053 ± 287 | 1153 ± 703 | 0.31 |
|
| |||
| Race - Caucasians | 459 (78%) | 34 (65%) | 0.03 |
| African American | 126 (22%) | 18 (35%) | |
|
| |||
| Prenatal steroid use | 511 (88%) | 45 (87%) | 0.80 |
|
| |||
| Male sex | 305 (52%) | 32 (62%) | 0.19 |
|
| |||
| Clinical chorioamnionitis | 48 (9%) | 5 (10%) | 0.85 |
|
| |||
| Patent ductus arteriosus | 220 (38%) | 23 (44%) | 0.35 |
|
| |||
| Infants <28 weeks | 236 (40%) | 30 (58%) | 0.02 |
|
| |||
| Infants <1000 grams | 242 (41%) | 28 (54%) | 0.08 |
|
| |||
| Type of feeding * | |||
| Breast milk | 135 (42.2%) | 24 (53.3%) | 0.33 |
| Formula milk | 78 (24.4%) | 10 (22.2%) | |
| Breast and formula milk | 107 (33.4%) | 11 (24.5%) | |
*
Feeding information was not available from one center.