Table 1

Descriptive statistics regarding absence days for the 31 most common index injuries. The injuries are arranged according to their median absence

InjuryFrequency (% of total)Mean (95% CI)Median (95% CI)25th;75th percentile10th;90th percentileRe-injury rate (%)
Thigh contusion651 (3.3)6.4 (5.6 to 7.1)4.0 (3.0 to 4.0)2.0;7.01.0;12.01.4
Foot contusion537 (2.7)6.8 (5.9 to 7.6)4.0 (4.0 to 4.0)2.0;7.01.0;14.04.1
Knee contusion465 (2.3)6.1 (5.3 to 6.9)4.0 (4.0 to 4.0)2.0;7.01.0;13.02.8
Low back pain405 (2.0)8.3 (6.7 to 10.0)4.0 (4.0 to 5.0)2.0;8.01.0;14.018.8
Ankle contusion385 (1.9)5.9 (5.1 to 6.7)4.0 (3.0 to 4.0)2.0;6.01.0;11.02.6
Calf contusion314 (1.6)6.2 (5.1 to 7.3)4.0 (3.0 to 4.0)2.0;6.02.0;12.01.3
Ankle joint capsular injury287 (1.4)8.3 (7.0 to 9.6)4.0 (4.0 to 5.0)3.0;10.02.0;20.010.8
Quadriceps muscle injury (functional)218 (1.1)4.9 (4.3 to 5.5)4.0 (3.0 to 4.0)2.0;6.01.0;9.013.8
Calf muscle injury (functional)215 (1.1)5.6 (4.9 to 6.3)4.0 (4.0 to 5.0)2.0;7.01.0;12.015.3
Lower leg contusion200 (1.0)6.1 (5.0 to 7.1)4.0 (3.0 to 5.0)2.0;7.51.0;14.02.0
Hamstring muscle injury (functional)709 (3.6)5.9 (5.5 to 6.2)5.0 (4.0 to 5.0)3.0;7.02.0;11.016.1
Groin pain256 (1.3)13.5 (10.2 to 16.8)5.0 (5.0 to 7.0)3.0;12.51.0;26.032.4
Concussion235 (1.2)8.7 (6.6 to 10.8)5.0 (5.0 to 6.0)4.0;8.02.0;14.05.5
Ankle joint synovitis128 (0.6)10.8 (7.8 to 13.7)5.0 (5.0 to 7.0)3.0;11.01.0;20.038.3
Achilles tendon pain370 (1.9)18.4 (14.3 to 22.6)6.0 (5.0 to 7.0)3.0;15.02.0;42.038.4
Knee joint synovitis279 (1.4)11.6 (9.7 to 13.6)6.0 (5.0 to 7.0)4.0;13.02.0;27.048.0
Knee joint capsular injury143 (0.7)12.8 (9.0 to 16.7)6.0 (5.0 to 7.0)3.0;13.02.0;24.010.5
Knee patellar tendinopathy231 (1.2)17.9 (13.5 to 22.3)7.0 (6.0 to 8.0)3.0;16.02.0;44.033.3
Groin other muscle-related or tendon-related pain216 (1.1)13.4 (10.2 to 16.5)7.0 (6.0 to 8.0)4.0;15.02.0;30.06.9
Ankle medial ligament injury196 (1.0)13.4 (11.2 to 15.7)7.0 (6.0 to 9.0)4.0;15.03.0;34.013.3
Groin adductor pain1754 (8.8)13.5 (12.6 to 14.4)8.0 (8.0 to 9.0)4.0;15.02.0;27.017.7
Ankle lateral ligament injury1260 (6.3)14.9 (13.7 to 16.0)8.0 (7.0 to 9.0)4.0;18.02.0;32.013.7
Hip flexor pain264 (1.3)13.8 (11.6 to 15.9)8.0 (7.0 to 10.0)4.0;18.02.0;29.013.3
Hamstring muscle injury (structural)2379 (13.8)18.0 (17.2 to 18.8)13.0 (12.0 to 14.0)7.0;22.04.0;36.017.5
Quadriceps muscle injury (structural)914 (4.6)19.5 (18.1 to 20.9)13.0 (12.0 to 14.0)7.0;23.04.0;41.015.6
Calf muscle injury (structural)818 (4.1)17.4 (16.3 to 18.6)13.0 (12.0 to 14.0)8.0;22.04.0;35.014.4
Knee LCL injury146 (0.7)23.8 (18.9 to 28.7)13.0 (9.0 to 19.0)6.0;30.04.0;56.010.3
Knee MCL injury760 (3.8)24.6 (22.6 to 26.6)16.0 (15.0 to 18.0)7.0;35.53.0;56.010.3
Knee cartilage injury223 (1.1)48.7 (40.3 to 57.1)22.0 (15.0 to 30.0)8.0;62.04.0;134.036.3
Knee lateral meniscus injury128 (0.6)50.1 (41.8 to 58.4)36.0 (29.0 to 42.0)18.5.0;65.58.0;128.023.4
Knee ACL injury183 (0.9)210.2 (197.9 to 222.6)205.0 (198.0 to 218.0)173.0;238.0129.0;292.06.6
  • ACL, anterior cruciate ligament; LCL, lateral collateral ligament; MCL, medial collateral ligament