GP Recruitment round | Contaced GPs (N) | GPs recruited (N)a | Drop Out (N) | Recruitment rate (%)b | Recruitment ratio (%)c |
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First recruitment round | 17 | 8 | 1 | 41.2 | 25.0 |
Second recruitment round | 486 | 18 | 3 | 3.1 | 53.6 |
Third recruitment round | 116 | 6 | 0 | 5.2 | 21.4 |
- Note. a includes GPs who signed informed consent. b Recruitment rate was calculated as number of successfully participating GPs (recruited GPs minus drop-outs) divided by the number of GPs contacted for recruitment. c Recruitment ratio was calculated based on the ratio of successfully participating GPs (recruited GPs minus drop-outs) and the final GP sample (N = 28)