Sample
Three samples of participants were identified for the purposes of this study: obstetric doctors or trainees, women who had experienced emergency CS in the 24-months preceding the interviews; and primiparous women (either pregnant with their first child or had their first child in the previous 24 months). It was important to get the views of pregnant or primiparous women without experiences of impacted fetal head in order to get views from women who represent the population a future RCT would try to recruit. Women who experienced an emergency CS (and possibly impacted fetal head) may have different views because of their experiences.