Table 3

Differences in days absence between index and re-injuries (only if the injury type occurs for both index injuries and re-injuries). Differences exist if p<0.05

InjuryMean difference (95 % CI)P value
Achilles tendon pain−10.6 (−20.6 to −0.6)0.037*
Ankle joint capsular injury−5.2 (−15.3 to 5.0)0.307
Ankle joint synovitis−10.4 (−28.3 to 7.6)0.252
Ankle lateral ligament injury1.9 (−1.3 to 5.2)0.244
Ankle medial ligament injury−1.6 (−8.1 to 5.0)0.642
Calf muscle injury (functional)−1.8 (−5.2 to 1.7)0.304
Calf muscle injury (structural)−3.3 (−6.6 to 0.0)0.047*
Foot contusion−5.0 (−16.4 to 6.3)0.367
Groin adductor pain−5.7 (−9.5 to −1.8)0.004*
Groin pain−7.7 (−18.7 to 3.3)0.169
Hamstring muscle injury (functional)−3.4 (−5.5 to −1.2)0.003*
Hamstring muscle injury (structural)−3.6 (−6.3 to −0.9)0.010*
Hip flexor pain−2.9 (−9.0 to 3.3)0.360
Knee cartilage injury−20.6 (−41.7 to 0.6)0.056
Knee joint synovitis−2.1 (−7.5 to 3.3)0.435
Knee lateral meniscus injury−10.5 (−30.3 to 9.2)0.293
Knee MCL injury−2.5 (−9.2 to 4.2)0.472
Knee patellar tendinopathy−4.2 (−14.0 to 5.5)0.393
Low back pain−4.4 (−11.3 to 2.5)0.208
Quadriceps muscle injury (functional)−1.5 (−3.6 to 0.6)0.168
Quadriceps muscle injury (structural)−4.2 (−8.0 to −0.4)0.031*
  • *Significant difference in days absence between index and re-injuries (p<0.05).

  • MCL, medial collateral ligament.