From: Can obtaining informed consent alter self-reported drinking behaviour? A methodological experiment
Phases | Contacted | Screening1a | Screening2b | Screening3c | Successfully recruited | |
---|---|---|---|---|---|---|
IG | CG | |||||
Run-in | 214 | 184 (86) | 106 (50) | 109 (51) | 50 (23) | 50 (23) |
Main | 488 | 378 (78) | 306 (63) | 300 (62) | 140 (29) | 140 (29) |
TOTAL | 702 | 562 (80) | 412 (59) | 409 (58) | 190 (27) | 190 (27) |