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Table 4 Risk factors for unsuccessful trial of labor after cesarean (TOLAC) (n = 179)

From: Success of trial of labor in women with a history of previous cesarean section for failed labor induction or labor dystocia: a retrospective cohort study

  Unadjusted unsuccessful TOLAC Adjusted unsuccessful TOLAC
  OR CI (95%) p-value OR CI (95%) p-value
Maternal age ≥ 37 1.4 0.9–2.2 0.12 1.6 1.0–2.7 0.05
IVF 1.6 0.5–5.8 0.45 0.5 0.1–2.1 0.36
Smoking 1.2 0.7–2.3 0.51 1.4 0.7–2.9 0.35
Height < 160 cm 1.5 1.0–2.3 0.03 1.7 1.1–2.7 0.01
BMI ≥ 35 1.6 0.9–2.8 0.14 1.5 0.8–2.9 0.21
No prior vaginal delivery 3.3 1.9–5.7 < 0.001 4.9 2.7–9.0 < 0.001
More than 2 years from previous CS 1.3 0.9–1.8 0.22 1.6 1.1–2.4 0.02
Diabetes, type 1 or gestational 1.6 1.1–2.3 0.01 1.7 1.0–2.6 0.03
Medication-dependent gestational diabetes 1.5 0.8–3.0 0.21 2.1 0.9–5.2 0.11
Post-term pregnancy (≥42 weeks) 2.5 1.5–4.2 0.001 1.5 0.6–4.0 0.43
Labor induction for post-term pregnancy 2.2 1.3–3.8 0.003 1.5 0.6–4.0 0.43
Labor induction for premature rupture of membranes 1.8 0.9–3.3 0.08 2.1 1.0–4.1 0.04
Labor induction for diabetes 1.2 0.6–2.3 0.67 0.7 0.3–1.8 0.47
Labor induction for non-diabetic macrosomia 3.6 0.8–16.4 0.09 5.9 1.2–29.2 0.03
Labor induction for fetal reason 2.8 1.0–7.5 0.05 4.2 1.5–12.2 0.007
Labor induction for maternal reason 0.94 0.5–1.8 0.84 1.3 0.7–2.6 0.46
Birthweight ≥4500 g 2.3 1.1–4.8 0.03 2.4 1.1–5.5 0.03