Demographic characteristics of all patient in the non-reconstructed and ACL-reconstructed groups with data at any follow-up
| Characteristic | Non-reconstructed (n=982) | ACL-reconstructed (n=8,838) |
| Age (mean, SD) | 30.2 (10.6) | 30.0 (10.5) |
| Sex (n, %) | ||
| Male | 555 (56.5) | 4,995 (56.5) |
| Female | 427 (43.5) | 3,843 (43.5) |
| Activity at injury (n, %) | ||
| Alpine/skiing | 224 (22.8) | 2,016 (22.8) |
| Pivoting sport | 538 (54.8) | 4,842 (54.8) |
| Non-pivoting sport | 44 (4.5) | 396 (4.5) |
| Other | 176 (17.9) | 1,584 (17.9) |
ACL, anterior cruciate ligament.