Table 2.
Frequency of medical conditions reported, percentage of responses, and percentage of participants reporting each medical category (from the UK Clinical Research Collaboration [16]).
| Conditions | Responses (N=1084), n (%) | Participants (N=722a), n (%) |
| Not able to categorize | 30 (2.8) | 30 (4.2) |
| None | 76 (7) | 76 (10.5) |
| Blood | 7 (0.6) | 7 (1) |
| Cancer | 13 (1.2) | 13 (1.8) |
| Cardiovascular | 61 (5.6) | 61 (8.4) |
| Congenital disorder | 7 (0.6) | 7 (1) |
| Ear | 2 (0.2) | 2 (0.3) |
| Eye | 4 (0.4) | 4 (0.6) |
| Infection | 14 (1.3) | 14 (1.9) |
| Inflammatory and immune system | 38 (3.5) | 38 (5.3) |
| Injury and accidents | 18 (1.7) | 18 (2.5) |
| Mental health | 399 (36.9) | 399 (55.3) |
| Metabolic and endocrine | 45 (4.2) | 45 (6.2) |
| Musculoskeletal | 153 (14.2) | 153 (21.2) |
| Neurological | 66 (6.1) | 66 (9.1) |
| Oral gastrointestinal | 17 (1.6) | 17 (2.4) |
| Renal and urogenital | 6 (0.6) | 6 (0.8) |
| Reproductive health and childbirth | 19 (1.8) | 19 (2.6) |
| Respiratory | 52 (4.8) | 52 (7.2) |
| Skin | 26 (2.4) | 26 (3.6) |
| Stroke | 0 (0) | 0 (0) |
| Generic health relevance | 0 (0) | 0 (0) |
| Other | 31 (2.9) | 31 (4.3) |
aThe participant percentage will exceed 100% because of a number of participants reporting comorbidities.