Table 7

 Health factors for lower extremity injury

DeterminantAuthorInjurySpecification of determinantOutcome (95% CI)
*Not-running injuries and running, but not lower extremity, injuries were included to establish the outcome.
†RRs were calculated dividing the number of injured runners by the total number of runner-weeks accumulated (relative incidence ratios).
‡Represents adjusted OR or RR.
CI, confidence interval; m, months; OR, odds ratio; RR, relative risk; wk, week.
History of previous injuriesWen et al, 199821Overall injuries*History of previous injuries†RR = 2.02 (1.27 to 3.21)‡
Shin injuriesHistory of old shin injuries†RR = 7.24 (2.40 to 21.82)‡
Macera et al, 198914Lower extremity injuriesM, new lower extremity injury during the previous 12 mOR = 2.7 (2.6 to 2.7)‡
F, new lower extremity injury during the previous 12 mOR = 1.9 (0.7 to 4.9)‡
Walter et al, 198920New injuries*M, injured in previous yearOR = 1.69 (1.27 to 2.25)‡
F, injured in previous yearOR = 2.35 (1.33 to 4.07)‡
Kretsch et al, 198411Overall injuries*Number of medical or physical problems experienced during trainingp>0.05
Macera et al, 199123Lower extremity musculoskeletal problemsM, previous musculoskeletal problems in the past yearOR = 6.3 (3.7 to 10.8)‡
F, previous musculoskeletal problems in the past yearOR = 7.6 (2.0 to 28.4)‡
Medical historySatterthwaite et al, 199917Stiffness and/or pain in kneeCurrent medication useOR = 1.56 (1.02 to 2.32)‡
Being unwell in last 2 wk before marathonOR = 1.42 (1.03 to 1.95)‡
Kretsch et al, 198411Overall injuries*Positive medical historyp<0.025