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Table 1 AACTT specification of target behaviour of each interview set

From: What influences communication about retention in randomised trials: a multi-trial, theory-based analysis exploring trial staff perspectives

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