Activity at the time of injury/aetiology for primary anterior cruciate ligament reconstructions
| Characteristic, n (%) | Denmark* | Luxembourg† | Norway‡ | Sweden§ | UK¶ | US** |
| Total N | 21 820 | 300 | 17 556 | 30 422 | 2972 | 28 055 |
| American football/rugby | – | 9 (3.1) | – | 244 (0.8) | 147 (14.5) | 2348 (11.9) |
| Basketball/netball | 240 (1.2) | 28 (9.6) | 230 (1.3) | 622 (2.1) | 40 (3.9) | 3525 (17.9) |
| Fall | – | 5 (1.7) | – | 268 (0.9) | 34 (3.4) | 1098 (5.6) |
| Floor ball | – | 1 (0.3) | – | 2641 (8.7) | – | 0 (0.0) |
| Football | 8946 (43.2) | 124 (42.6) | 7045 (40.5) | 12 876 (42.6) | 419 (41.4) | 5262 (26.7) |
| Handball | 3513 (17.0) | 28 (9.6) | 2505 (14.4) | 1632 (5.4) | 0 (0.0) | 2 (0.0) |
| Hiking/jogging/running/walking | – | 1 (0.3) | 1185 (6.8) | 31 (0.1) | 8 (0.8) | 321 (1.6) |
| Martial arts/wrestling | 196 (0.9) | 5 (1.7) | 330 (1.9) | 840 (2.8) | 17 (1.7) | 671 (3.4) |
| Motorsports/motor vehicle accident | – | 3 (1.0) | 184 (1.1) | 1330 (4.4) | 13 (1.3) | 824 (4.2) |
| Winter sports (skiing/snowboard) | 2740 (13.2) | 44 (15.1) | 3033 (17.4) | 4236 (14.0) | 142 (14.0) | 1509 (7.6) |
| Work injury | 1266 (6.1) | 9 (3.1) | 437 (2.5) | 512 (1.7) | 9 (0.9) | 320 (1.6) |
| Other | 1811 (8.7) | 14 (4.8) | 1595 (9.2) | 1824 (6.0) | 41 (4.0) | 599 (3.0) |
| Other sport | 1997 (9.6) | 20 (6.9) | 864 (5.0) | 3162 (10.5) | 143 (14.1) | 3261 (16.5) |
*Missing data: 1111 (5.1).
†Missing data: 9 (3.0%).
‡Missing data: 148 (0.8%).
§Missing data: 204 (0.7%).
¶Missing data: 1959 (65.9%).
**Missing data: 8315 (29.6%).
– , not reported.