Table 1 Characteristics of study population
Characteristics | Preterm cases (N = 14) | Term controls (N = 16) |
|---|---|---|
GA at delivery, weeks* | 32.3 (2.1) | 39.1 (0.8) |
GA at blood collection, weeks* | 16.5 (2.1) | 15.8 (1.4) |
Preterm delivery types | Â | Â |
   Spontaneous labor | 4 (28.6) | 0 (0.0) |
   Preterm PROM | 5 (35.7) | 0 (0.0) |
   Other medically indicated | 5 (35.7) | 0 (0.0) |
Maternal Age, years* | 33.0 (4.2) | 33.1 (3.8) |
   20-34 years | 8 (57.1) | 9 (56.3) |
   35 and above years | 6 (42.9) | 7 (43.7) |
Race | Â | Â |
   White | 8 (57.1) | 15 (93.7) |
   African American | 2 (14.3) | 0 (0.0) |
   Other | 4 (28.6) | 1 (6.3) |
Pre-gestational BMI, kg/m 2* | 29.6 (11.9) | 23.8 (6.2) |
Multiparous | 6 (42.9) | 9 (56.3) |
Multigravida | 10 (71.4) | 12 (75.0) |
Cesarean delivery | 4 (28.6) | 2 (12.5) |
Smoked in pregnancy | 2 (14.3) | 1 (6.3) |
Preeclampsia | 4 (28.6) | 0 (0.0) |
Gestational diabetes | 2 (14.3) | 2 (12.5) |
Diabetes mellitus | 0 (0.0) | 0 (0.0) |
Chronic hypertension | 4 (28.6) | 1 (6.3) |
Chorioamnionitis | 1 (7.1) | 2 (12.5) |
Abruptio placenta | 1 (7.1) | 0 (0.0) |
IUGR | 0 (0.0) | 0 (0.0) |
Cervical insufficiency | 1 (7.1) | 0 (0.0) |