Demographic characteristics of the cohort
| Characteristics | Values |
| Number of subjects | 118 |
| Male | 113 (96) |
| Age (years), mean (SD), {range} | 27.9 (12.5), {7–59} |
| Number of subjects ⩽35 years | 89 (75) |
| Sport discipline | |
| Soccer | 44 (37) |
| Running | 24 (20) |
| Rugby | 11 (9) |
| Cycling | 8 (7) |
| Swimming | 5 (4) |
| Weight lifting | 3 (3) |
| Golf | 3 (3) |
| Other (⩽2 subjects/discipline) | 20 (17) |
Results are shown as number (%) unless stated otherwise.