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Participants who completed at least one questionnaire prior to addition of the health care professional validation element.
| Participant type | Users (n=696), n (%) | Nonusers (n=234), n (%) | All (n=930), n (%) |
| Adults | 520 (55.9) | 173 (18.6) | 693 (74.5) |
| Adolescents | 2 (0.2) | 0 (0.0) | 2 (0.2) |
| Caregivers | 123 (13.2) | 52 (5.6) | 175 (18.8) |
| Partners | 51 (5.5) | 9 (1.0) | 60 (6.5) |
