Table 2.
Maternal characteristics by screening results for the Berlin Questionnaire.
| Maternal Characteristics | n | Positive BQ | Negative BQ | P |
|---|---|---|---|---|
| Maternal age at enrollment (years) | 1,588 | 29.8 ± 5.9 | 29.7 ± 5.7 | 0.9 |
| Maternal racial background | ||||
| Caucasian | 1,124 | 510 (45%) | 614 (55%) | < 0.01 |
| African American | 230 | 109 (47%) | 121 (53%) | |
| Asian/Other | 231 | 83 (36%) | 148 (64%) | |
| Maternal education | ||||
| Less than high school | 137 | 66 (48%) | 71 (52%) | < 0.01 |
| High school | 328 | 172 (52%) | 156 (48%) | |
| Some college | 336 | 171 (51%) | 165 (49%) | |
| Bachelors or higher | 759 | 280 (37%) | 479 (63%) | |
| Prepregnancy BMI (kg/m2) | 1,588 | 30.2 ± 8.1 | 23.6 ± 5.2 | < 0.01 |
| Parity | 1,588 | 1.7 ± 1.1 | 1.62 ± 1.2 | 0.09 |
| Current smoker | 191 | 108 (57%) | 83 (43%) | < 0.01 |
| Gestational week at enrollment (weeks) | 1,588 | 34.3 ± 3.7 | 34.1 ± 3.7 | 0.03 |
| History of HDP | 79 | 44 (56%) | 35 (44%) | 0.05 |
Continuous variables were compared using t-tests and proportions were compared using chi-square tests. BMI = body mass index, BP = blood pressure, BQ = Berlin Questionnaire, HDP = hypertensive disorders of pregnancy.