Table 2.
Descriptive statistics regarding absence days for the 30 most common re-injuries. The injuries are arranged according to their median absence
| Injury | Frequency (% of total) | Mean (95% CI) | Median (95% CI) | 25th;75th percentile | 10th;90th percentile |
| Calf muscle injury (functional) | 33 (1.1) | 7.3 (4.1 to 10.6) | 4.0 (2.0 to 6.0) | 2.0;7.0 | 2.0;14.0 |
| Quadriceps muscle injury (functional) | 30 (1.0) | 6.4 (4.3 to 8.4) | 4.0 (3.0 to 9.0) | 3.0;9.0 | 1.5;13.5 |
| Groin pain | 83 (2.8) | 21.2 (10.8 to 31.5) | 5.0 (4.0 to 8.0) | 2.0;16.0 | 1.0;56.0 |
| Low back pain | 76 (2.6) | 12.7 (6.2 to 19.3) | 5.0 (4.0 to 7.0) | 3.0;8.5 | 2.0;18.0 |
| Knee pain | 31 (1.0) | 10.9 (5.9 to 16.0) | 5.0 (3.0 to 9.0) | 2.0;10.0 | 1.0;27.0 |
| Ankle joint capsular injury | 31 (1.0) | 13.5 (3.4 to 23.6) | 5.0 (2.0 to 9.0) | 2.0;14.0 | 2.0;21.0 |
| Foot plantar fasciitis | 24 (0.8) | 14.8 (5.0 to 24.6) | 5.0 (3.0 to 13.0) | 2.5;13.5 | 1.0;51.0 |
| Knee joint synovitis | 134 (4.4) | 13.8 (8.8 to 18.8) | 6.0 (4.0 to 7.0) | 2.0;14.0 | 1.0;30.0 |
| Hamstring muscle injury (functional) | 114 (3.8) | 9.2 (7.1 to 11.3) | 6.0 (5.0 to 7.0) | 3.0;11.0 | 2.0;17.0 |
| Foot contusion | 22 (0.7) | 11.8 (0.5 to 23.1) | 6.0 (2.0 to 8.0) | 2.0;8.0 | 1.0;17.0 |
| Ankle lateral ligament injury | 173 (5.7) | 12.9 (10.3 to 15.6) | 7.0 (5.0 to 8.0) | 3.0;15.0 | 2.0;30.0 |
| Ankle joint synovitis | 49 (1.6) | 21.1 (3.8 to 38.4) | 7.0 (5.0 to 11.0) | 3.0;14.0 | 2.0;38.0 |
| Knee patellofemoral joint pain | 23 (0.8) | 25.9 (5.5 to 46.3) | 7.0 (3.0 to 16.0) | 2.0;17.0 | 1.0;107.0 |
| Knee patellar tendinopathy | 77 (2.6) | 22.1 (12.0 to 32.3) | 8.0 (3.0 to 11.0) | 2.0;17.0 | 1.0;51.0 |
| Achilles tendon pain | 142 (4.7) | 29.1 (20.1 to 38.1) | 8.5 (5.0 to 13.0) | 3.0;27.0 | 2.0;90.0 |
| Groin adductor pain | 311 (10.3) | 19.2 (15.4 to 22.9) | 9.0 (7.0 to 10.0) | 4.0;21.0 | 2.0;46.0 |
| Ankle medial ligament injury | 26 (0.9) | 15.0 (9.5 to 20.5) | 9.0 (6.0 to 24.0) | 6.0;27.0 | 3.0;38.0 |
| Ankle pain | 20 (0.7) | 17.0 (7.1 to 26.9) | 11.0 (4.0 to 19.0) | 3.5;20.5 | 1.0;50.5 |
| Knee MCL injury | 78 (2.6) | 27.0 (19.5 to 34.6) | 13.0 (9.0 to 20.0) | 7.0;37.0 | 4.0;63.0 |
| Hip flexor pain | 35 (1.2) | 16.6 (12.1 to 21.2) | 13.0 (6.0 to 22.0) | 6.0;29.0 | 2.0;38.0 |
| Shoulder dislocation | 24 (0.8) | 35.3 (14.6 to 56.1) | 14.5 (8.0 to 32.0) | 6.5;47.0 | 3.0;100.0 |
| Hamstring muscle injury (structural) | 416 (13.8) | 21.5 (18.9 to 24.1) | 15.0 (14.0 to 17.0) | 9.0;25.0 | 6.0;40.0 |
| Quadriceps muscle injury (structural) | 143 (4.7) | 23.7 (20.2 to 27.2) | 16.0 (13.0 to 21.0) | 9.0;33.0 | 4.0;56.0 |
| Calf muscle injury (structural) | 118 (3.9) | 20.8 (17.0 to 24.5) | 16.0 (14.0 to 18.0) | 9.0;25.0 | 5.0;43.0 |
| Groin enthesiopathy/pubalgia | 44 (1.5) | 35.9 (22.9 to 48.8) | 17.0 (10.0 to 31.0) | 8.0;45.0 | 4.0;92.0 |
| Lumbar disc injury | 27 (0.9) | 31.4 (18.4 to 44.4) | 17.0 (8.0 to 42.0) | 6.0;45.0 | 2.0;78.0 |
| Groin hernia /sports hernia | 39 (1.3) | 53.5 (33.6 to 73.5) | 28.0 (17.0 to 56.0) | 6.0;85.0 | 2.0;151.0 |
| Knee medial meniscus injury | 24 (0.8) | 38.2 (21.6 to 54.9) | 28.0 (14.0 to 55.0) | 11.5;55.0 | 6.0;76.0 |
| Knee cartilage injury | 81 (2.7) | 69.2 (50.1 to 88.4) | 29.0 (10.0 to 59.0) | 5.0;104.0 | 4.0;200.0 |
| Knee lateral meniscus injury | 30 (1.0) | 60.7 (40.1 to 81.2) | 46.5 (28.0 to 61.0) | 17.0;79.0 | 6.0;164.5 |
MCL, medial collateral ligament.