Interviews
Potential interviewees (participants and staff) were sent an information leaflet. Those interested gave informed consent to be interviewed. Intervention delivery staff were told of the interviews at their training and were approached on completing their final group. Semistructured interviews were recorded using an encrypted device (OLYMPUS DS-7000 digital voice recorder), see All data were collected and stored in digitally secure locations with restricted access in accordance with the Data Protection Act 2018c12 which is the UK’s implementation of the General Data Protection Regulation.