what is the methods of variables: tools, surveys, or scales. Give detailed descriptions of reliability and validity of the study. Methods This study was a pragmatic randomised controlled trial (RCT) conducted between 28 February 2018 and 15 March 2020, with final data collection completed on 15 May 2020. The trial was closed at the outbreak of the Covid-19 pandemic when only one support person was allowed in the labour ward. The study protocol [13] describes in detail the study setting and desig