Intervention group | Random sample (n = 8325) | Executed (n = 6027) | Questionnaire (n = 4500) | Response (rate) (n = 2474) |
---|---|---|---|---|
Seminar | 3825 | 1527 | 0 | 0 |
Interactive guideline | 1500 | 1500 | 1500 | 852 (59.8%) |
Printed guideline | 1500 | 1500 | 1500 | 783 (54.9%) |
Control | 1500 | 1500 | 1500 | 839 (58.9%) |