Table 7.

Factors influencing hospital stay and in-hospital costs of surgical GI cancer patients (multiple regression analysis)

Factors	Factors influencing hospital stay			Factors influencing in-hospital costs
	Standardized coefficient β	t	P	Standardized coefficient β	t	P
Age	0.05	1.01	0.32	-0.06	-1.22	0.22
Sex	-0.11	-1.80	0.07	-0.07	-1.17	0.24
Education background	-0.04	-0.89	0.37	-0.04	-0.88	0.38
weight loss (%)	0.02	0.26	0.80	-0.01	-0.05	0.96
BMI	-0.05	-0.62	0.54	0.06	0.81	0.42
MAMC	-0.05	-0.66	0.51	-0.07	-0.86	0.39
TSF	0.12	1.35	0.18	0.06	0.66	0.51
ALB	-0.10	-2.11	0.04	-0.16	-3.17	0.002
SGA-A/SGA-C	0.41	2.36	0.02	0.43	2.51	0.01
SGA-B/SGA-C	0.39	2.52	0.01	0.31	2.06	0.04
TNM	-0.01	-0.26	0.08	0.10	2.11	0.04
Tumor site	-0.06	1.21	0.23	-0.09	-1.90	0.06

Factors influencing hospital stay model F = 2.35, P < 0.01; Factors influencing in-hospital costs model F = 3.92, P < 0.01.