2.2. Participants and Recruitment 
RECRUITMENT
Details relating to the recruitment of participants into the ‘Say No’ trial have been reported elsewhere [Participants were recruited using convenience sampling from those participating in the trial. This meant that participants were invited to interview if they attended the follow-up. In some cases, there may have not been time to conduct an interview (due to participant or researcher availability), and, therefore, not all participants took part in an interview. We also decided to interview members of the control group to understand their experiences, and these members were invited on a first-come basis. This study was approved by the Royal Prince Alfred Hospital Sydney Local Health District Human Research Ethics Committee (X16-0163, HRE/16/RPAH/202) and the clinical trial registration is ACTRN12616001239459. 