Table 3.
Prior literature-based TGS with kurtosis statistics, and group comparisons via independent t-test, top quartile vs. bottom quartile comparisons via χ2, and ROC curve analysis AUC.
| Group | Mean (SD) TGS | Mean (SE) Kurtosis | p-Value Athlete Group vs. Non-Athletes | p-Value Top Quartile vs. Bottom Quartile TGS | ROC Curve Analysis AUC (95% CI) | p-Value AUC |
|---|---|---|---|---|---|---|
| Non-athletes | 56.4 (12.8) | −0.403 (0.217) | ||||
| All Rugby Athletes | 56.5 (13.6) | −0.506 (0.198) | 0.797 | 0.349 | 0.504 (0.470–0.538) | 0.800 |
| RU Athletes | 56.4 (13.4) | −0.490 (0.215) | 0.828 | 0.415 | 0.504 (0.468–0.539) | 0.830 |
| RL Athletes | 56.9 (14.7) | −0.617 (0.488) | 0.821 | 0.444 | 0.507 (0.440–0.575) | 0.823 |
| RU Forwards | 56.3 (13.3) | −0.384 (0.283) | 0.934 | 0.678 | 0.502 (0.460–0.544) | 0.935 |
| RU Backs | 56.5 (13.5) | −0.613 (0.328) | 0.769 | 0.326 | 0.507 (0.460–0.554) | 0.772 |