Table 2. Maternal and Infant Characteristics.
| Term (n = 31) | Preterm (n = 40) | p value | |
| Maternal age (years: mean ± SD) | 31±7 | 29±6 | 0.53 |
| Gravidity (median (IQR)) | 3 (2–4) | 3 (1–4) | 0.32 |
| Parity (median (IQR)) | 1 (0–2) | 2 (0–3) | 0.44 |
| Gestational age (weeks; mean ± SD) | 39±1 | 31±3 | <0.001 |
| Birth weight (grams; mean ± SD) | 3486±507 | 1730±667 | <0.001 |
| Gender (% male) | 48.3 | 40 | 0.48 |
| Race (%) | 0.53 | ||
| African American | 13.8 | 23.1 | |
| Caucasian | 44.8 | 46.2 | |
| Hispanic | 41.4 | 30.7 | |
| Mode of delivery (%) | 0.06 | ||
| Vaginal | 19.3 | 40 | |
| C-section | 80.7 | 60 | |
| Prenatal use antibiotics (%) | 22.6 | 70.7 | <0.001 |
| Prenatal use steroids (%) | 0 | 65 | <0.001 |
| Prenatal use magnesium sulfate (%) | 0 | 50 | <0.001 |
| APGAR score (1 minute) | 0.02 | ||
| Below 5 (%) | 0 | 15 | |
| Above 5 (%) | 100 | 75 | |
| Smoking (% yes) | 12.9 | 35 | 0.03 |
| Maternal asthma (% yes) | 9.7 | 7.5 | 0.74 |
| Histological chorioamnionitis (%) | 0.15 | ||
| None | 83.2 | 53.6 | |
| Stage 1 | 5.6 | 3.6 | |
| Stage 2 | 5.6 | 17.8 | |
| Stage 3 | 5.6 | 25 |