Table 1.
Clinical and demographic characteristics of the study population
| Term delivery (n = 72) | Spontaneous preterm delivery (n = 18) | P value | |
|---|---|---|---|
| Age (years) |
24 (21.8-28) |
21 (20–26) |
0.1 |
| Race: |
|
|
|
| African American |
62 (86.1%) |
17 (94.4%) |
0.7 |
| White |
4 (5.6%) |
1 (5.6%) |
|
| Others |
6 (8.3%) |
0 |
|
| Pre-pregnancy BMI (kg/m2) |
28.7 (25.7-35.3)* |
25.7 (21.6-33.6)** |
0.2 |
| Nulliparity |
18 (25%) |
7 (38.9%) |
0.3 |
| Gestational age at delivery (weeks) |
39.6 (38.8-40.7) |
30.5 (28–33.1) |
0.001 |
| Birthweight (grams) |
3295 (3124.3-3538.8) |
1402.5 (997.5-1998.8) |
0.001 |
| Apgar score at 1 min |
9 (8–9) |
6 (3–8) |
0.001 |
| Apgar score at 5 min |
9 (9–9) |
8 (6–8) |
0.001 |
| Duration of hospital stay (neonates); in days | 3 (3–3)** | 26 (13–53)*** | 0.001 |
Data presented as median (interquartile range) or n (%).
BMI: body mass index.
Missing data: *n = 4, **n = 6, ***n = 1.