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Comparison of pilot study and full trial recruitment
| Pilot study | Full trial | |
|---|---|---|
| Response rate | 9.9 % | 7.1 % |
| Non-contactable for brief intervention screening | 15.8 % | 49.5 % |
| Too active for brief intervention | 30.0 % | 18.0 % |
| Non-contactable for main trial screening | 43.4 % | 44.7 % |
| Eligible for main trial | 78.8 % | 50.0 % |
| Consented and randomised | 57.0 % | 50.0 % |
