Fig 1.
Study inclusion flow chart and outcome of attempted VE for the total cohort according to fetal station.
CS, Cesarean section.
Table 1.
Maternal and neonatal characteristics in attempted midpelvic vacuum extractions (n = 319) categorized according to success or failure.
Table 2.
Labor characteristics and operator category in attempted midpelvic vacuum extractions (n = 319) with odds ratio indicating the risk of failure.
Table 3.
Multivariable linear regression analysis for attempted midpelvic vacuum extractions (n = 319) with odds ratio indicating the risk of failure.
Table 4.
Maternal outcome in attempted midpelvic vacuum extractions (n = 319) categorized according to success or failure.
Fig 2.
Proportion of neonates with Apgar <7 at 5 minutes (%) according to success or failure of attempted midpelvic vacuum and delivery indication “arrested labour”.
VE, Vacuum extractions. Multiple imputation did not change the significance of any results (Table 3 and S2 Table).