Table 2.
Maternal history of participants
| Maternal history, n (%) | Patients |
|---|---|
| Number of previous pregnancies | (N = 302) |
| 0 | 98 (32.5) |
| 1 | 86 (28.5) |
| 2 | 53 (17.5) |
| 3 | 31 (10.3) |
| 4 | 19 (6.3) |
| ≥ 5 | 15 (5.0) |
| Number of previous live infants of those with a prior pregnancy | (N = 204) |
| 0 | 34 (16.7) |
| 1 | 91 (44.6) |
| 2 | 46 (22.6) |
| 3 | 18 (8.8) |
| 4 | 9 (4.4) |
| ≥ 5 | 6 (2.9) |
| Number of previous spontaneous abortions of those with a prior pregnancy | (N = 204) |
| 0 | 140 (68.6) |
| 1 | 46 (22.5) |
| 2 | 12 (5.9) |
| 3 | 6 (2.9) |
| 4 | 0 |
| ≥ 5 | 0 |
| Number of previous fetal deaths of those with a prior pregnancy | (N = 204) |
| 0 | 201 (98.5) |
| 1 | 3 (1.5) |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| ≥ 5 | 0 |