Table 1. Demographic characteristics of the study population.
| Characteristic | Normal (n = 90) | Late PE (n = 76) | Mild Late PE (n = 48) | Severe Late PE (n = 28) |
|---|---|---|---|---|
| Gestational age at delivery (weeks) | 39.4 (39.0–40.4) | 38.7 (37.7–39.4) [p<0.001] | 38.8 (37.7–39.4) [p<0.001] | 38.6 (37.7–39.5) [p<0.001] |
| BMI (kg/m2) | 26.5 (22.8–33.2) | 30.0 (24.8–36.2) [p = 0.03] | 28.4 (24.0–33.0) [p = 0.23] | 32.5 (27.2–38.7) [p = 0.01] |
| Maternal age (years) | 24 (21.0–27.8) | 22 (20.0–29.0) [p = 0.45] | 22.5 (20.0–28.3) [p = 0.57] | 22 (19.0–29.3) [p = 0.5] |
| Smoking | 18 (20%) | 13 (17.1%) [p = 0.7] | 9 (18.8%) [p = 1] | 4 (14.2%) [p = 0.6] |
| Nulliparity | 26 (28.9%) | 32 (42.1%) [p = 0.1] | 22 (45.8%) [p = 0.06] | 10 (35.7%) [p = 0.5] |
Data is presented as median (interquartile range) or as percentage (n); BMI, body mass index. P values are given for the comparison to the normal pregnancy group.