Interviews
To understand and interpret the subjective experiences and perspectives of the individuals being interviewed, and acknowledge the researcher’s role in shaping the meaning of the findings, the research questions were addressed with a constructivist approach [Three members of the research team (two students and one research fellow), independent from the SAFA trial, conducted the interviews (CB, AS, CC) from October 2021 to February 2022. All identifiable data were anonymised, and quotes were labelled with pseudonyms at the write-up. The duration of the interviews was on average 28 min (range 19–39). All interviews were transcribed verbatim, error-checked and data were handled using NVivo10.