Table 1. . Demographics and birth outcomes.
| First trimester | Third trimester | p-value | |
|---|---|---|---|
| n | 110 | 44 | |
| Maternal age, years | 37.7 (3.0) | 37.3 (3.0) | 0.65 |
| Paternal age, years | 39.5 (4.8) | 38.6 (4.8) | 0.30 |
| Maternal race/ethnicity | |||
| Caucasian | 106 (96.4%) | 35 (79.6%) | 0.002 |
| Non-Hispanic | 107 (97.3%) | 35 (79.6%) | <0.001 |
| Paternal race/ethnicity | |||
| Caucasian | 104 (94.6%) | 37 (84.1%) | 0.04 |
| Non-Hispanic | 107 (97.3%) | 36 (81.8%) | 0.001 |
| Fetal race/ethnicity | |||
| Caucasian | 103 (93.6%) | 32 (72.7%) | <0.001 |
| Non-Hispanic | 106 (96.4%) | 33 (75.0%) | <0.001 |
| Fetal female sex | 57 (51.8%) | 18 (40.9%) | 0.22 |
| Maternal pre-pregnancy BMI, kg/m2 | 21.9 (3.4) | 24.0 (4.7) | 0.005 |
| Maternal pre-existing medical conditions | |||
| Hypertension | 0 (0%) | 0 (0%) | - |
| Diabetes | 0 (0%) | 0 (0%) | - |
| Thyroid disorder | 3 (2.7%) | 6 (13.6%) | 0.02 |
| Pregnancy complications | |||
| Hypertension (not pre-existing) | 0 (0%) | 8 (18.2%) | <0.001 |
| Gestational diabetes | 3 (2.7%) | 1 (2.3%) | 1.0 |
| Placenta previa | 0 (0%) | 1 (2.3%) | 0.49 |
| Placental abruption | 0 (0%) | 0 (0%) | - |
| Hypertension management in pregnancy | |||
| Anti-hypertensives | 0 (0%) | 3 (6.8%) | 0.022 |
| Any magnesium use (ante or postpartum) | 0 (0%) | 6 (13.6%) | <0.001 |
| Mode of delivery – cesarean section | 33 (30%) | 15 (34.1%) | 0.74 |
| Gestational age at delivery, days | 276.3 (7.0) | 276.5 (8.0) | 0.43 |
| Birth weight, g | 3435.4 (463.6) | 3473.1 (467.0) | 0.7 |
Values shown as mean (standard deviation) or n (%). P-values were adjusted for fetal sex.