Table 1.
Sample overview
| Cohort | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| Blood draws (n) | 201 | 385 | 69 | 186 | 353 | 793 | 140 | 412 |
| Pregnancies (n) | 197 | 219 | 68 | 186 | 352 | 592 | 120 | 106 |
| % Asian | 10.7 | 10.0 | 1.5 | 10.2 | 0.0 | 0.5 | 0.0 | 0.0 |
| % Black | 18.3 | 4.6 | 0.0 | 25.3 | 45.2 | 48.5 | 100.0 | 0.0 |
| % Hispanic | 24.4 | 17.8 | 14.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| % White | 40.1 | 56.6 | 83.8 | 61.3 | 54.8 | 44.3 | 0.0 | 100.0 |
| % Unknown or multiracial | 6.6 | 11.0 | 0.0 | 3.2 | 0.0 | 6.8 | 0.0 | 0.0 |
| Gestational age at blood draw (weeks) | 12.0–27.9 | 5.6–38.2 | 8.9–28.1 | 12.2–23.8 | 16.9–26.8 | 4.9–40.2 | 8.0–38.7 | 11.4–34.8 |
| BMI (kg m−2)* | 28.1 ± 7.4 | 26.9 ± 6.2 | 33.3 ± 9.0 | 26.4 ± 6.2 | 28.6 ± 8.2 | 28.9 ± 7.6 | 24.5 ± 5.1 | 25.4 ± 6.1 |
| Maternal age (years)* | 32.4 ± 5.7 | 30.1 ± 5.1 | 29.8 ± 5.2 | 32.7 ± 5.4 | 26.5 ± 5.7 | 24.0 ± 4.5 | 28.8 ± 6.3 | 30.5 ± 4.7 |
*Variation shown as s.d.
Blood draw and pregnancy count, breakdown of ethnicity and race, and clinical factors.