Table 2. The correlation and linear regression analysis between PCRC and relevant gene expression.

	PCRC
Gene symbol	Pearson’s correlation coefficient		Multiple linear regression
	ρa	P-value	P-value	VIF
CLCA4	−0.868	<0.001***	<0.001***	6.959
GUCA2A	−0.837	<0.001***	<0.001***	8.947
GCG	−0.726	<0.001***	0.087	4.944
SST	−0.616	0.001**	0.017*	3.755
MS4A12	−0.793	<0.001***	0.039*	4.685
PLP1	−0.763	<0.001***	<0.001***	2.363
CHGA	−0.634	<0.001***	0.001**	2.290
PYY	−0.610	<0.001***	0.004**	2.195
VIP	−0.600	<0.001***	0.271	2.157
GUCA2B	−0.688	<0.001***	0.017*	4.144

^aPearson’s correlation coefficient between PCRC and relevant characteristics; ρ: Pearson’s correlation coefficient.

^bMultiple linear regression analysis; PCRC: primary colorectal cancer.

^*: P<0.05;

^**: P<0.01;

^***: P<0.001