Table 4.

Age and gender ordinary least square (OLS) coefficients, with standard errors (SE) on the MD, MT and CSA outcomes. Interaction terms between age or gender with the side were also reported.

	Coefficient MD (cm)	S.E.	p-Value MD	Coefficient MT (cm)	S.E.	p-Value MT	Coefficient CSA (cm2)	S.E.	p-Value CSA
Age	0.0015	0.004	0.7281	-0.0139	0.003	<0.0001 *	−0.0493	0.013	0.0003 *
Gender (male)	−0.4313	0.132	0.0016 *	0.3109	0.087	0.0006 *	1.4918	0.386	0.0002 *
Age/side effect (unaffected)	−0.0035	0.003	0.1810	0.0105	0.056	0.0632	0.0184	0.88	0.3812
Gender/side effect (unaffected)	−0.0878	0.054	0.1071	0.0616	0.113	0.5865	−0.1085	−0.24	0.8083

Abbreviations: MD—muscle depth; MT—muscle thickness; CSA—cross-sectional area; S.E.—standard error. * Significant correlation (p < 0.05).