Table 2.

Correlation between MFI-K and other factors.

	MFI-K total scores		General/physical fatigue		Mental fatigue
	r	p	r	p	r	p
Caregiver age	0.049	0.631	0.185	0.065	0.346	<0.001
Patient age	0.436	<0.001	−0.171	0.089	0.100	0.323
Patient's disease duration	0.193	0.055	0.284	0.004	0.169	0.094
BMI	−0.127	0.207	−0.074	0.465	−0.076	0.452
Sleep duration	−0.026	0.794	−0.171	0.090	0.028	0.782
ESS total scores	0.346	<0.001	0.270	0.007	0.431	<0.001
HADS-anxiety score	0.509	<0.001	0.547	<0.001	0.489	<0.001
HADS-depression score	0.576	<0.001	0.529	<0.001	0.526	<0.001
MFI-K total scores	1		0.768	<0.001	0.881	<0.001
General/physical fatigue	0.768	<0.001	1		0.563	<0.001
Mental fatigue	0.881	<0.001	0.563	<0.001	1
Reduced activities	0.719	<0.001	0.327	0.001	0.514	<0.001
Motivation	0.829	<0.001	0.489	<0.001	0.665	<0.001

p values were obtained by Pearson's correlation analysis.