Establishment of an antepartum predictive scoring model to identify candidates for vaginal birth after cesarean

Table 2 Factors associated with vaginal birth after cesarean in multivariable logistic regression

Variable	OR	95% CI	P value
Maternal age at delivery	1.914	1.125–3.254	0.017
Without previous vaginal delivery	4.795	1.877–12.248	0.001
Interdelivery interval	1.622	1.005–2.618	0.048
Without TOL during prior CD	1.934	1.105–3.385	0.021
Dystocia as prior CD indication	2.849	1.943–4.177	< 0.001
IT diameter	0.163	0.079–0.334	< 0.001
Maternal predelivery BMI	1.130	1.046–1.221	0.002
Gestational age at delivery	1.233	1.148–1.323	< 0.001
Estimated fetal weight	1.001	1.000–1.001	0.031
Hypertensive disorders	3.472	1.212–9.944	0.020

OR odds ratio; CI confidence interval; TOL trial of labor; CD cesarean delivery; IT intertuberous; BMI body mass index (at delivery, kg/m²)

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