Table 2.
Patient characteristics.
| Variables | Control (n=12) | NEC (n=12) | χ2/Z/t | P value |
|---|---|---|---|---|
| Gestational age, ¯x ± SD, w | 31.7 ± 2.32 | 31.33 ± 2.1 | -0.409 | 0.687 |
| Birth weight, ¯x ± SD, g | 1720.83 ± 541.32 | 1577.08 ± 575.26 | -0.63 | 0.535 |
| Female, % (n) | 33.3(4) | 25(3) | / | 1.000 |
| Vaginal delivery, %(n) | 41.7(5) | 33.3(4) | / | 1.000 |
| Intrauterine distress, %(n) | 25(3) | 8.3(1) | / | 0.590 |
| Apgar 1 min, M (IQR) | 8(6.25-9) | 8.5(7.25-9) | -0.521 | 0.630 |
| Age at enrollment, M (IQR), d | 7(3-16.5) | 17(9.25-31.5) | -1.937 | 0.052 |
| CGA at enrollment, ¯x ± SD, w | 33.43 ± 2.36 | 34.36 ± 2.09 | 1.021 | 0.318 |
| Breast feeding, %(n) | 58.3(7) | 41.7(5) | / | 0.684 |
| Antibiotic exposure during sample collection, %(n) | 41.7(5) | 41.7(5) | / | 1.000 |
| PROM, %(n) | 25(3) | 33.3(4) | / | 1.000 |
| Chorioamnionitis, %(n) | 8.3(1) | 8.3(1) | / | 1.000 |
| GDM, % (n) | 25(3) | 41.7(5) | / | 0.667 |
| Surgical treatment, %(n) | 0.0(0) | 33.3(4) | / | 0.093 |
NEC, necrotizing enterocolitis; IQR, interquartile range; CGA, corrected gestational age; PROM, premature rupture of membranes>18h;GDM, gestational diabetes mellitus.