Community based recruitment strategies v no active intervention (control) to increase attendance at mammography screening appointments within 12 months*
| Screening strategy | Intervention | Control | RBI (95% CI) | NNT (CI) |
|---|---|---|---|---|
| *Abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article. | ||||
| Single letter | 33% | 23% | 37% (25 to 51) | 11 (9 to 15) |
| Educational material by post | 77% | 54% | 42% (25 to 62) | 5 (4 to 7) |
| Invitation letter plus phone call | 43% | 25% | 78% (54 to 106) | 6 (5 to 7) |
| Invitation phone call | 45% | 29% | 54% (40 to 70) | 7 (6 to 8) |
| Training activities plus reminders | 9% | 4% | 142% (68 to 247) | 19 (14 to 32) |