Participants’ background and years of experience in numbers (and percentages for round 2) defined per round
| Characteristic | Round 1 | Round 2 | Round 3 | Round 4 |
| Number of participants | 15 | 114 | 8 | 7 |
| Female, n (%) | 11 | 100 (88%) | 6 | 6 |
| Dominant background, n (%) | ||||
| Researcher | – | 1 (1%) | – | 3 |
| Healthcare professional | 8 | 94 (82%) | 5 | 2 |
| General practitioner | 1 | 10 (9%) | 1 | 1 |
| Practice nurse | 1 | 12 (11%) | – | – |
| Case manager | 2 | 21 (18%) | 1 | – |
| Community nurse | 1 | 29 (25%) | 1 | – |
| Other | 3 | 22 (19%) | 2 | 1 |
| Manager/policy officer | 5 | 7 (6%) | – | 2 |
| Informal caregiver | 2 | 12 (11%) | 3 | – |
| Years of experience dominant background, n (%) | ||||
| <5 | 5 | 16 (17%)* | 1† | 1 |
| 5–10 | 5 | 25 (27%)* | 3† | – |
| >10 | 5 | 51 (56%)* | 3† | 6 |
*Years of experience of professionals and managers/policy officers; n=92.
†n=7.