Table 2.
Humeral retrotorsion descriptive and ROC AUC statistics.a
| Humeral Retrotorsion: Injury History | Mean ± SD (°) | 95% CI (°) | ROC AUC | AUC 95% CI |
|---|---|---|---|---|
| Dominant limb | ||||
| Shoulder | 82.7 ± 9.8 | 76.4-89.0 | 0.485 | 0.268-0.701 |
| Elbow | 83.9 ± 9.4 | 78.2-89.6 | 0.608 | 0.408-0.808 |
| None | 81.4 ± 7.1 | 78.0-84.8 | ||
| Nondominant limb | ||||
| Shoulder | 67.1 ± 11.2 | 60.0-74.2 | 0.543 | 0.321-0.766 |
| Elbow | 63.6 ± 12.9 | 55.8-71.4 | 0.389 | 0.195-0.583 |
| None | 67.0 ± 7.9 | 63.2-70.8 | ||
| Difference | ||||
| Shoulder | 15.6 ± 12.2 | 7.8-23.3 | 0.477 | 0.256-0.698 |
| Elbow | 21.7 ± 7.7b | 16.8-26.5 | 0.735 | 0.580-0.890 |
| None | 14.4 ± 9.4 | 9.8-19.0 |
a
CI, confidence interval; ROC, receiver operating characteristic; AUC = area under the ROC curve.
b
Statistically significant difference from the participants with no history of injury (P = 0.03).