Interview set | Action | Actor | Context | Target | Time |
---|---|---|---|---|---|
Retention staff | Actions/non-actions that influenced non retention | Trial study staff or trial site staff or clinical staff (e.g., Research Nurses, Trial Managers, Data Coordinators) | Various (e.g., trial office (on the phone, by email, web-based, etc.), clinic (i.e., face-to-face) | All trial participants | Dependent of trial follow-up time points |
Recruitment staff | Verbal communication about retention to trial (i.e., attendance at clinic, return of questionnaires, if applicable, ability to stop treatment but maintain follow up) | Trial recruiters | Informed consent discussions | Potential trial participants | Before seeking consent and randomisation |