From: Prediction of vaginal birth after cesarean delivery in Southeast China: a retrospective cohort study
Characteristics | Whole cohort (n = 708) | Training cohorts(n = 483) | Validation cohorts(n = 225) | P* | |
---|---|---|---|---|---|
Maternal height (mean (SD)) | 1.60 (0.05) | 159.80 (4.87) | 159.27 (5.00) | 0.180 | |
Pre-gravid maternal weight (mean (SD)) | 53.27 (7.19) | 53.43 (7.43) | 52.93 (6.64) | 0.383 | |
Maternal weight at delivery (mean (SD)) | 66.74 (7.84) | 67.07 (8.03) | 66.02 (7.37) | 0.095 | |
Pre-gravid maternal BMI (median [IQR]) | 20.62 [19.15, 22.42] | 20.57 [19.07, 22.48] | 20.78 [19.33, 22.06] | 0.703 | |
Maternal BMI at delivery (median [IQR]) | 26.16 [24.36, 27.88] | 26.20 [24.34, 27.96] | 26.02 [24.50, 27.50] | 0.392 | |
Abdominal circumference (mean (SD)) | 98.37 (5.05) | 98.44 (5.23) | 98.21 (4.62) | 0.582 | |
Fundal height (mean (SD)) | 33.87 (1.50) | 33.91 (1.57) | 33.78 (1.31) | 0.253 | |
Cervix Bishop score (median [IQR]) | 7.00 [7.00, 8.00] | 7.00 [7.00, 8.00] | 7.00 [7.00, 8.00] | 0.909 | |
Maternal age at delivery (mean (SD)) | 31.28 (3.64) | 31.23 (3.58) | 31.39 (3.78) | 0.574 | |
Gestation (median [IQR]) | 39.00 [38.29, 39.86] | 1.00 [0.00, 1.00] | 1.00 [0.00, 1.00] | 0.334 | |
Cesarean section interval time (median [IQR]) | 5.00 [3.00, 7.00] | 5.00 [3.00, 6.50] | 4.00 [3.00, 7.00] | 0.942 | |
History of vaginal delivery (%) | NO | 473 (66.8) | 319 (66.0) | 154 (68.4) | 0.585 |
YES | 235 (33.2) | 164 (34.0) | 71 (31.6) | ||
Rupture of membranes (%) | NO | 473 (66.8) | 332 (68.7) | 141 (62.7) | 0.131 |
YES | 235 (33.2) | 151 (31.3) | 84 (37.3) | ||
Success of TOLAC (%) | NO | 122 (17.2) | 86 (17.8) | 36 (16.0) | 0.627 |
YES | 586 (82.8) | 397 (82.2) | 189 (84.0) |