Table 1. Demographics of study cohort.
| Demographics | Overall values | SVD n = 368 |
CD n = 223 |
Significance of difference (p Value for SVD vs. CD) |
|---|---|---|---|---|
| Age (y) | ||||
| Median age | 30 | 29.2 | 29. 9 | 0.46 |
| Parity | ||||
| Nulliparous | 153/591 (26%) | 91/368 (24.7%) | 62/223 (27.8%) | 0.41 |
| Parous | 438/591 (74%) | 277/368(75.3%) | 161/223 (72.2%) | |
| Gestational age (wk) | ||||
| 23–27 | 26/591 (4.4%) | 12/368 (3.3%) | 14/223 (6.3%) | < 0.001 |
| 28–32 | 89/591 (15.1%) | 38/368 (10.3%) | 51/223 (22.9%) | |
| 33–36 | 476/591 (80.5%) | 318/368(86.4%) | 158/223 (70.9%) | |
| Administration of antenatal steroids (wk) | ||||
| 23–27 | 25/26 (96.2%) | 12/368 (3.3%) | 13/223 (5.8%) | 0.21 |
| 28–32 | 83/89 (93.3%) | 34/368 (9.2%) | 49/223 (21.9%) | |
| Race/ethnicity | ||||
| White | 14/591 (2.4%) | 8/368 (2.1%) | 6/223 (2.7%) | 0.01 |
| Black | 73/591 (12.4%) | 33/368 (9%) | 40/223 (17.9%) | |
| Hispanic | 485/591 (82.1%) | 315/368 (85.6%) | 170/223 (76.2%) | |
| Asian | 16/591 (2.7%) | 9/368 (2.4%) | 7/223 (3.1%) | |
| Other | 3/591 (0.51%) | 3/368 (0.8%) | 0/223 (0%) | |
| Presentation | ||||
| Cephalic | 496/591 (83.9%) | 342/368 (92.9%) | 154/223 (69.1%) | < 0.001 |
| Breech | 65/591 (11%) | 10/368 (2.7%) | 55/223 (24.7%) | |
| Undocumented | 30/591 (5.1%) | 16/368 (4.3%) | 14/223 (6.3%) | |
| Multiples | ||||
| Twins | 46/591 (7.8%) | 19/368 (5.1%) | 27/223 (12.1%) | 0.004 |
Abbreviations: CD, cesarean delivery; SVD, spontaneous vaginal delivery.
Note: The majority of our cohort was Hispanic, multiparous, and had a cephalic presentation. Bold values show a significant difference (p < 0.05) between Cesarean delivery and vaginal delivery groups.