Skip to main content

Table 2 Odds ratios (OR) for fetal heart rate abnormalities during and after ECV

From: Fetal heart rate abnormalities during and after external cephalic version: Which fetuses are at risk and how are they delivered?

  Univariate Multivariate
Variable O.R. 95% C.I. O.R. 95% C.I.
Maternal age (years) 1.00 0.94–1.05   
Gestational age at ECV (weeks and days) 1.02 0.80–1.30   
Nulliparity 0.79 0.49–1.28   
Engagement of breech 1.50 0.96–2.35   
Frank breech 1.20 0.74–1.95   
Amniotic fluid index ≤ 10 cm 1.71 1.05–2.77 1.57 0.95–2.58
Placenta anterior 0.79 0.50–1.26   
Duration of ECV (minutes) 1.14 1.07–1.22 1.13 1.05–1.21
ECV success 0.82 0.52–1.29   
Estimated fetal weight (per 100 g) 0.90 0.87–0.94 0.90 0.87–0.94