Table 3.
Planned and Actual Delivery Characteristics by Cohort (N=496)
| Total | Historical control cohort | Intervention cohort† | P value | |
|---|---|---|---|---|
| N=496 | n=185 | n=311 | ||
| % (n) | % (n) | % (n) | ||
| Planned mode of delivery* | ||||
| Vaginal delivery | 75% (363) | 71% (129) | 77% (234) | 0.162 |
| Spontaneous labor | 21% (101) | 24% (44) | 19% (57) | |
| Induction of labor | 54% (262) | 47% (85) | 58% (177) | |
| Cesarean delivery | 25% (122) | 29% (52) | 23% (70) | |
| Actual mode of delivery | ||||
| Vaginal delivery | 57% (276) | 50% (91) | 61% (185) | 0.026 |
| Cesarean delivery | 43% (210) | 50% (90) | 39% (120) | |
| Planned gestational age at delivery | ||||
| <39 wk | 21% (101) | 37% (66) | 12% (35) | <0.0001 |
| ≥39 wk | 79% (373) | 63% (114) | 88% (259) | |
| Actual gestational age at delivery, median (IQR) | 38.4 (37.0, 39.1) | 38.1 (37.0, 39.0) | 38.9 (37.1, 39.1) | 0.011‡ |
| <39 wk | 57% (280) | 67% (122) | 52% (158) | 0.001 |
| ≥39 wk | 43% (207) | 34% (60) | 48% (147) | |
*
Vaginal delivery includes spontaneous labor and induction of labor. No difference between spontaneous labor and induction of labor (P=0.055).
†
When sum is <311, clinical observation missing.
‡
Wilcoxon rank‐sum or Fisher's exact test.