Baseline characteristics of practices and participating patients
| Characteristic | Intervention | Control |
| Patients | N=138 | N=392 |
| Female, n (%) | 84 (60.9) | 225 (57.4) |
| Age (years), mean (SD) | 68.4 (8.7) | 68.0 (8.6) |
| Region, n (%) | ||
| North East | 27 (19.6) | 227 (57.9) |
| Eastern | 111 (80.4) | 165 (42.1) |
| Practices | N=21 | N=21 |
| Region | ||
| North East | 11 | 10 |
| Eastern | 10 | 11 |
| List size, mean (range) | 9682 (1686–15 447) | 10 161 (2371–19 934) |