Time elapsed from index pregnancy |
3.2 ±0.9 |
3.2 ±0.9 |
3.2 ±0.9 |
0.042 |
Maternal Age >= 35 |
378 (9.4) |
159 (10.9) |
219 (8.6) |
0.015 |
Race (Non-Hispanic Black) |
495 (12.3) |
212 (14.5) |
283 (11.1) |
0.001 |
Education (Some college or less) |
1506 (37.4) |
592 (40.5) |
914 (35.7) |
0.003 |
Gravidity >= 3 |
248 (6.2) |
107 (7.3) |
141 (5.5) |
0.022 |
Smoking |
625 (15.6) |
282 (19.3) |
343 (13.4) |
0.001 |
Alcohol Use (ever) |
2509 (62.4) |
902 (61.7) |
1607 (72.8) |
0.498 |
Prior Miscarriage |
599 (14.9) |
232 (15.9) |
367 (14.3) |
0.189 |
Prior Abdominal Surgery |
408 (10.1) |
151 (10.3) |
257 (10.0) |
0.770 |
Prior Bleeding at First Trimester |
272 (6.8) |
106 (7.3) |
166 (6.5) |
0.354 |
≤ 200% of the federal poverty level |
1013 (30.3) |
410 (34.0) |
603
(28.2) |
0.000 |
Government Health Insurance |
1066 (26.6) |
428 (29.4) |
638 (25.0) |
0.002 |