| Characteristics | Total N = 230 |
| Sex n (%), missing: 3 |
|
| Male | 152 (67.0) |
| Female | 75 (33.0) |
| Age n (%), missing: 1 |
|
| 20s | 27 (11.8) |
| 30s | 93 (40.6) |
| 40s | 54 (23.6) |
| 50s | 39 (17.0) |
| >60s | 16 (7.0) |
| Years of practical experience n (%), missing: 4 |
|
| <2 years | 7 (3.1) |
| 2 - 5 years | 33 (14.6) |
| 5 - 10 years | 74 (32.7) |
| 10 - 20 years | 70 (31.0) |
| >20 years | 42 (18.6) |
| Type of research n (%), missing: 7 |
|
| Introduction of practice | 94 (42.1) |
| Observation study | 68 (30.5) |
| Intervention study | 18 (8.1) |
| Other | 43 (19.3) |