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

Injury	Mean 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 injury	1.9 (−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.