Table 2 Initial survey respondent roles
| Â | Number | Percentage |
|---|---|---|
Which one of the following best describes your main role in a randomised trial? | ||
 A researcher involved in aspects of the trial other than retention | 96 | 22 |
 A principal investigator | 95 | 21 |
 A person invited to take part in a trial | 70 | 15 |
 A trial methodologist (someone who specialises in the methods of how trials are designed, run, analysed, and reported) | 70 | 15 |
 A researcher involved in encouraging people to stay involved in trials | 65 | 14 |
 A patient, carer, or public contributor to the design or running of trials | 22 | 5 |
 Other (please describe) | 19 | 4 |
 A parent or carer of a person invited to take part in a trial | 10 | 2 |
 No response | 9 | 2 |
 Total | 456 | 100 |
Where do you usually live? | ||
 England | 281 | 62 |
 Scotland | 61 | 14 |
 Republic of Ireland | 51 | 11 |
 Wales | 33 | 7 |
 Other | 15 | 3 |
 Northern Ireland | 11 | 2 |
 No response | 4 | 1 |
 Total | 456 | 100 |