Should peri-gastrectomy gastric acidity be our focus among gastric cancer patients?

Table 2 Results of multiple linear regression suggesting potential factors influencing gastric pH pre-gastrectomy

	b	b’	t	P value
Gender	-0.062	-0.020	-0.270	0.788
Age	0.036	0.249	2.461	0.016c
Body mass index	0.031	0.067	0.919	0.361
Tumor size	0.132	0.176	2.401	0.019c
Tumor location	0.099	0.108	1.371	0.174
TNM classification	-0.032	-0.048	-0.436	0.664
Differentiation grade	0.493	0.359	2.866	0.005d
Potassium ion	-0.053	-0.222	-2.317	0.023c
Sodium ion	0.001	0.022	0.224	0.823
Bicarbonate ion	0.584	0.210	2.122	0.037c
Urea nitrogen	0.087	0.090	1.145	0.256
Direct bilirubin	-0.244	-0.030	-0.440	0.661
Indirect bilirubin	0.254	0.108	1.347	0.182
Total bile acid	0.051	0.043	0.582	0.562

b: Partial regression coefficient; b’: Standardized partial regression coefficient.

^cP < 0.05;

^dP < 0.01. TNM: Tumor-node-metastasis.