| Number of trials (%) |
---|---|
Considered morally or ethically the right thing to do | 47 (66.2%) |
Believed to result in better research | 46 (64.8%) |
Required by funder(s) | 44 (62.0%) |
To improve recruitment of participants to this trial | 40 (56.3%) |
To improve retention of participants in this trial | 28 (39.4%) |
Institutional policy | 19 (26.8%) |
PPI contributor(s) offered their services | 2 (2.8%) |
Do not know | 1 (1.4%) |