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

Table 3 Results of multiple linear regression suggesting possible factors influencing reflux syndrome change (6 mo post- minus pre-gastrectomy)

	Scale	b	b’	t	P value
Gender	RDQ	-1.342	-0.139	-1.393	0.167
	GERD-Q	-0.604	-0.098	-1.046	0.299
Age	RDQ	0.072	0.160	1.506	0.136
	GERD-Q	0.056	0.194	1.952	0.054
Body mass index	RDQ	0.339	0.265	2.629	0.010c
	GERD-Q	0.227	0.277	2.939	0.004d
TNM classification	RDQ	-0.119	-0.059	-0.546	0.587
	GERD-Q	-0.014	-0.011	-0.108	0.914
pH	RDQ	0.121	0.017	0.17	0.865
	GERD-Q	-0.142	-0.031	-0.331	0.741
Potassium ion	RDQ	0.079	0.155	1.295	0.099
	GERD-Q	0.074	0.227	2.025	0.046c
Sodium ion	RDQ	0.017	0.117	1.137	0.259
	GERD-Q	0.013	0.136	1.417	0.160
Bicarbonate ion	RDQ	0.381	0.198	2.019	0.147
	GERD-Q	0.192	0.156	1.701	0.193
Urea nitrogen	RDQ	-0.074	-0.087	-0.781	0.437
	GERD-Q	-0.070	-0.129	-1.242	0.218
Direct bilirubin	RDQ	-0.985	-0.374	-2.970	0.004d
	GERD-Q	-0.704	-0.416	-3.542	0.001d
Indirect bilirubin	RDQ	0.077	0.252	2.251	0.027c
	GERD-Q	0.073	0.374	3.585	0.001d
Total bile acid	RDQ	0.005	0.178	1.517	0.033c
	GERD-Q	0.005	0.272	2.485	0.015c

b: Partial regression coefficient; b’: Standardized partial regression coefficient; RDQ: Reflux disease questionnaire; GERD-Q: Gastroesophageal reflux disease questionnaire.

^cP < 0.05;

^dP < 0.01.