Table 1.
Clinical Characteristics of Patient Groups.a
| Variable | TNL, n = 12 | TL, n = 13 | PTL, n = 15 |
|---|---|---|---|
| Maternal age, years | 28.0 (5.7) | 23.8 (5.8) | 25.5 (4.1) |
| Prepregnancy BMI, kg/m2 | 28.2 (6.0) | 23.8 (5.8) | 21.5 (3.3) |
| BMI at sample collection, kg/m2 | 33.7 (6.3) | 28.4 (5.4) | 25.5 (4.1) |
| Race | |||
| White | 1 | 3 | 5 |
| Black | 10 | 8 | 10 |
| Asian | 1 | ||
| Hispanic | 1 | ||
| Other | 1 | ||
| Primiparous | 2 | 6 | 3 |
| Multiparous | 10 | 7 | 12 |
| Gestational age, weeks | 38.9 (0.3) | 39.5 (0.8) | 32.5 (2.3)b |
| Infant birth weight, g | 3215 (323) | 3308 (280) | 2081 (553)b |
| Delivery method | |||
| Vaginal | 0 | 11 | 11 |
| Cesarean delivery | 12 | 2 | 4 |
Abbreviations: BMI, body mass index; PTL, preterm labor; SD, standard deviation; TL, term labor; TNL, term not-in-labor.
aValues are mean (SD).
bP < .0001 compared to TNL or TL.