Grade | I (SD) | II (SD) | p Value* (95% CI) |
27.7 (7.9) | 46.8 (13.4) | <0.001 (−27.1 to −10.9) |
Average (SD). *Independent samples t test. 95% CI, confidence interval of the difference between averages. Grade I, mild injury; grade II, less severe injury. SPA, sports participation absence.