Participant characteristics
| Participant characteristics | N (%) |
| Male | 12 (57) |
| Female | 9 (43) |
| General practitioner | 5 (24) |
| Non-ACHD cardiologist | 3 (14) |
| Cardiologist with an interest in ACHD | 5 (24) |
| ACHD specialist | 8 (38) |
| White British | 16 (76) |
| Other white | 3 (14) |
| Chinese or other Asian groups | 2 (10) |
| Northern | 8 (38) |
| Midlands | 2 (10) |
| Southern | 5 (24) |
| London | 3 (14) |
| Scotland | 2 (10) |
| Wales | 1 (4) |
ACHD, adult congenital heart disease.