Table 3.

Hierarchical multiple linear regression analysis of cancer-related fatigue among EC patients without esophagectomy

Variables	Cancer-related fatigue (CRF)
	B	95% CI	t	P	β	Adjusted R2	ΔR2
Demographic and clinical characteristics						0.068	0.107
Age	0.002	-0.034 to 0.038	0.094	0.925	0.005
Physical exercise (week)	-0.428	-0.854 to -0.002	2.010	0.045	-0.108
Time since diagnosis (year)	0.055	-0.642 to 0.752	0.157	0.875	0.029
Physical symptoms						0.644	0.571
Constipation	0.176	0.029 to 0.324	2.372	0.020	0.192
Diarrhea	0.209	0.035 to 0.383	2.391	0.019	0.181
Difficulty swallowing	0.210	0.101 to 0.320	3.818	< 0.001	0.273
Change in taste	0.034	-0.124 to 0.193	0.430	0.668	0.038
Abdominal distention	0.044	-0.104 to 0.193	0.593	0.555	0.048
Psychological symptoms						0.742	0.094
Depression	0.114	0.025 to 0.203	2.539	0.013	0.233
Anxiety	0.096	-0.008 to 0.201	1.832	0.070	0.170

B, unstandardized beta; β, standardized regression weight; CI, confidence interval