Table 3. Relationship between psychological distress and fatigue (MFI–20 dimensions scores) based on the stepwise multiple linear regression analysis .

Variables retained in the model	B	SE	Standard β	P value
Physical fatigue	0.21	0.04	0.22	<0.001
Mental fatigue	0.22	0.04	0.23	<0.001
General fatigue	0.17	0.03	0.18	<0.001
Constant	-5.33	0.47	–	<0.001