Table 1.
Characteristic | Incidence (n=149) |
---|---|
Maternal age, years (mean ± standard deviation) | 28.7 ± 6.0 |
Maternal age >35 years old (%) | 33.5 |
Body mass index (mean ± standard deviation) | 33.4 ± 8.8 |
Black race (%) | 51.2 |
Preeclampsia or gestational hypertension (%) | 26.7 |
Prior preterm delivery (%) | 19.7 |
Preterm delivery <37 weeks (%) | 29.5 |
Preterm delivery <34 weeks (%) | 16.1 |
Preterm delivery <28 weeks (%) | 6.0 |
Preterm premature rupture of membranes(%) | 14.9 |
Vaginal delivery (%) | 55.0 |