Table I.
Representativeness of participating GPs with regard to gender, seniority, type of practice, and number of listed patients per GP.
| GP characteristics | Participating GPs n = 404 | All GPs in the region n = 871 | p-value |
| Gender | |||
| Male | 224 (55.4) | 532 (61.1) | 0.002 |
| Female | 180 (44.6) | 339 (38.9) | |
| Number of years in practice | |||
| <5 | 107 (26.5) | 210 (24.1) | 0.007 |
| 5–10 | 77 (19.1) | 160 (18.4) | |
| 10–20 | 139 (34.4) | 279 (32.0) | |
| >20 | 81 (20.1) | 222 (25.5) | |
| Type of practice | |||
| Single-handed | 97 (24.0) | 215 (24.7) | 0.700 |
| Group | 307 (76.0) | 656 (75.3) | |
| Number of list patients per GP | |||
| <1000 | 25 (6.2) | 70 (8.0) | 0.400 |
| 1000–1499 | 225 (55.7) | 443 (50.9) | |
| 1500–1999 | 137 (33.9) | 315 (36.2) | |
| >1999 | 17 (4.2) | 43 (4.9) |