Table 3.
Sensitivity analysis
| ROI | Mean cortical thickness across all participants | Mean difference between non-injured rugby players and controls | Mean difference between injured and non-injured players | |||
|---|---|---|---|---|---|---|
| Left | Right | Left | Right | Left | Right | |
| Central sulcus | 2.08 mm (SD = 0.12) | 2.05 mm (SD = 0.1) | −0.064 mm (P = 0.078) | −0.041 mm (P = 0.24) | +0.011 mm (P = 0.72) | +0.35 mm (P = 0.29) |
| Precentral gyrus | 2.96 mm (SD = 0.14) | 2.88 mm (SD = 0.13) | −0.028 mm (P = 0.56) | −0.024 mm (P = 0.61) | +0.046 mm (P = 0.33) | +0.037 mm (P = 0.4) |
| Precental sulcus—superior | 2.49 mm (SD = 0.11) | 2.46 mm (SD = 0.13) | −0.025 mm (P = 0.55) | −0.044 mm (P = 0.29) | +0.016 mm (P = 0.67) | +0.052 mm (P = 0.22) |
| Precentral sulcus—inferior | 2.56 mm (SD = 0.11) | 2.49 mm (SD = 0.10) | −0.093 mm (P = 0.004**) | −0.080 (P = 0.006**) | +0.025 mm (P = 0.48) | +0.076 mm (P = 0.013*) |
Mean differences in cortical thickness between groups following linear regression modelling with robust standard errors adjusted for age using data with females and non-athletic controls excluded (n = 56). ROI, region of interest; SD, standard deviation. *P < 0.05; **P < 0.006.