Groups and endpoints
The participants were divided into two groups: the training group (obstetricians who participated in a training course in physiology-based interpretation of CTG) and the control group (no participation in such a course declared).
The primary endpoint was the difference between groups in the median number of second-line methods that the participants would have performed.
The secondary endpoints were the median number of decisions to continue labour without a second-line method when the real outcome was a caesarean section and the median number of decisions to perform a caesarean section when the real outcome was a vaginal delivery.