Characteristics of GP samples: percentages (absolute numbers)
| Sample of GPs (n=315) | Subsample of GPs (n=45) | GPs in the Netherlands (n=7093)* | |
|---|---|---|---|
| No significant difference was seen between either of the GP samples and all Dutch GPs (χ2 test, p=0.05). | |||
| *Source: references 21 and 22. With respect to location of practice, the two samples could not be compared with all Dutch GPs because of the use of different categories. | |||
| Sex | |||
| Male | 83 (262) | 82 (37) | 80 (5693) |
| Female | 17 (53) | 18 (8) | 20 (1400) |
| Age | |||
| <35 years | 4 (11) | 2 (1) | 4 (264) |
| 35–44 years | 38 (120) | 38 (17) | 38 (2693) |
| 45–54 years | 44 (140) | 47 (21) | 47 (3310) |
| 55–65 years | 14 (44) | 13 (6) | 12 (826) |
| Type of practice | |||
| Solo practice | 48 (147) | 44 (20) | 45 (3217) |
| Duo practice | 35 (114) | 31 (14) | 33 (2334) |
| Group practice | 17 (54) | 24 (11) | 22 (1542) |
| Location of practice | |||
| Rural area | 37 (116) | 40 (18) | |
| Small town | 14 (45) | 16 (7) | |
| Provincial city | 24 (75) | 22 (10) | |
| Large city | 25 (79) | 22 (10) | |