gramme end, at week 13. Interviews and focus groups were facilitated/moderated by a psychologist experienced in running focus groups (HB), and a study researcher who was a medical trainee (CC). Both had undertaken training in qualitative research and interview skills. Focus groups were conducted according to recommendations from NHS England’s focus group guide [12]. All interviews and focus groups followed the same questioning route (see Supplementary File S3), were audio-recorded and transcribed verbatim.

2.5. Reflexivity Statement
The research team members reflected on the i