Table 2 Univariate logistic analysis of factors predicting successful TOLAC in the training set
From: Evaluation of factors that predict the success rate of trial of labor after the cesarean section
Characteristics | Failure of TOLAC (N = 134) | Success of TOLAC (N = 417) | OR (95%CI) | P value |
|---|---|---|---|---|
Age (year) | ||||
< 35 | 88 (22.28) | 307 (77.72) | 1.46 (0.96, 2.22) | |
≥ 35 | 46 (29.49) | 110 (70.51) | 1.00 | 0.076 |
Education level | ||||
Lower than bachelor | 80 (23.89) | 223 (76.11) | 1.05 (0.71, 1.55) | 0.803 |
Bachelor degree or above | 64 (24.81) | 194 (75.19) | 1.00 | |
Gravidity | ||||
2 | 43 (19.55) | 177 (80.45) | 1.56 (1.03, 2.36) | 0.034 |
> 2 | 91 (27.49) | 240 (72.51) | 1.00 | |
Parity | ||||
1 | 31 (12.86) | 210 (87.14) | 3.37 (2.16, 5.26) | < 0.001 |
> 1 | 103 (32.23) | 207 (66.77) | 1.00 | |
Pre-pregnancy BMI (kg/m2) | ||||
< 24 | 94 (21.96) | 334 (78.04) | 1.71 (1.10, 2.66) | 0.017 |
≥ 24 | 40 (32.52) | 83 (67.48) | 1.00 | |
Excessive gestational weight gain | ||||
No | 83 (22.07) | 293 (77.93) | 1.45 (0.97, 2.18) | 0.073 |
Yes | 51 (29.14) | 124 (70.86) | 1.00 | |
Lower uterine segment (LUS) thickness (mm) | ||||
< 2.70 | 20 (18.02) | 91 (81.98) | 1.59 (0.94, 2.70) | 0.085 |
≥ 2.70 | 114 (25.91) | 326 (74.09) | 1.00 | |
Cervix Bishop score | ||||
< 5 | 83 (34.16) | 160 (65.84) | 1.00 | < 0.001 |
≥ 5 | 51 (16.56) | 257 (83.44) | 2.61 (1.75, 3.90) | |
Past vaginal delivery history | ||||
No | 131 (26.31) | 367 (73.69) | 1.00 | 0.001 |
Yes | 3 (5.66) | 50 (94.34) | 5.95 (1.82, 19.40) | |
Time interval from previous cesarean section (year) | ||||
< 9 | 125 (26.10) | 354 (73.90) | 1.00 | 0.012 |
≥ 9 | 9 (12.50) | 63 (87.50) | 2.47 (1.19, 5.12) | |
Neonatal birth weight (g) | ||||
< 3300 | 23 (11.06) | 185 (88.94) | 3.85 (2.36, 6.27) | < 0.001 |
≥ 3300 | 111 (32.36) | 232 (67.64) | 1.00 | |
Gestational age (week) | ||||
< 39 | 37 (21.39) | 136 (78.61) | 1.27 (0.83, 1.95) | 0.278 |
≥ 39 | 97 (25.66) | 281 (74.39) | 1.00 | |