Table 3. Multivariate linear regression analysis to evaluate whether the presence of RCC independently affects the level of serum ESM-1.

	Univariate		Multivariate
	β	P-value	β	P-value
Age	0.239	0.011	0.165	0.070
Gender	–0.050	0.600	–0.035	0.693
RCC (vs control)	0.375	<0.001	0.340	<0.001