Table 1 Number of expression of interest and enrolled participants using unpaid, paid and other methods of recruitment during the trial
Recruitment type | Number of expression of interest | Enrolment yield, n (%) |
|---|---|---|
Paid method | ||
 Facebook | 55 | 41 (75) |
 Instagram | 122 | 82 (67.2) |
 Total of paid method | 177 | 123 (69.5) |
Unpaid methods | ||
 Reddit | 152 | 121 (79.6) |
 Twitter | 11 | 7 (63.6) |
 Facebook | 4 | 2 (50) |
 Instagram | 8 | 6 (75) |
 Total of unpaid methods | 175 | 136 (77.7) |
Other methods | ||
 Word of mouth | 19 | 14 (73.6) |
 Participant recruitment website | 9 | 8 (88.8) |
 Poster | 2 | 2 (100) |
 East Midlands PGR conference | 1 | 0 |
 Web search | 8 | 5 (62.5) |
 Mumsnet | 1 | 1 (100) |
 Email | 1 | 1 (100) |
 NHS website | 6 | 6 (100) |
 Unknown | 1 | 0 |
 Total of other methods | 48 | 37 (77) |