Table 4 How was/were the patient and public involvement (PPI) contributor(s) recruited? (n = 65 trials with some kind of PPI)
| Â | Number of trials (%) |
|---|---|
Asked person/people already known to member(s) of the trial team | 40 (61.5) |
 • Patient(s) or former patient(s) of a clinician on the team | 32 (49.2) |
 • PPI contributor(s) from a previous study | 12 (18.5) |
 • Participant(s) from a previous study | 4 (6.2) |
 • Acquaintance(s), friend(s) or relative(s) | 4 (6.2) |
 • Participant(s) from this trial | 2 (3.1) |
 • Other | 2 (3.1) |
 • Do not know | 1 (1.5) |
Approached an established group, service, or organisation | 33 (50.8) |
 • A patient group or voluntary organisation | 19 (29.2) |
 • An established PPI group in my research centre/institution | 9 (13.8) |
 • Research Design Service (RDS) | 2 (3.1) |
 • Clinical Research Network (CRN) | 2 (3.1) |
 • Other | 4 (6.2) |
Open invitation/advert (e.g. newspaper, website, poster) | 5 (7.7) |
PPI contributor(s) approached the trial team | 2 (3.1) |
Other | 1 (1.5) |
Do not know | 4 (6.2) |