Table 4

Independent predictors of recurrence of a lateral hamstring injury within 3 weeks of return to competition

VariablenRR (95% CI)p Value
Past history of a hamstring injury
 No (reference)340
 Yes819.5 (1.5 to 261.1)
Time taken to walk pain-free following injury
 ≤1 day (reference)236.3 (0.4 to 98.6)0.188
 >1 day19
Active knee extension test
 No defi cit (reference)356.4 (0.7 to 62.8)0.109
 >10° deficit8
Taking non-steroidal anti-infl ammatory drugs in fi rst 3 days following injury
 No (reference)295.4 (0.7 to 44.0)0.110
 Yes13