Comparisons of SPA time between grades depending on the diagnostic level
| Grade | |||
| Level | I (SD) | II (SD) | p Value* (95% CI) |
| Proximal | 32.3 (8.5) | 48.7 (13.4) | 0.035 (−31.6 to −1.3) |
| Distal | 25.9 (7.3) | 42.9 (13.5) | 0.004 (−27.7 to −6.2) |
Average (SD). *Independent samples t test. 95% CI, confidence interval of the difference between averages. Grade I, mild injury; grade II, less severe injury. Comparisons of the sports participation absence (SPA) time between the two grades in each of the two diagnostic levels.