Table 2.

Linear regression analysis of factors associated with caregiver burden measured by PDCB.

Variables	R 2	Beta	p
PwP age	0.0048	0.069	0.475
PwP sex (m = 0, f = 1)	0.0400	−0.200	0.034*
PwP education level (1 = low, 2 = middle, 3 = high)	0.0017	−0.041	0.669
PwP disease duration	0.0858	0.293	0.002 **
MDS-UPDRS part II	0.1892	0.439	<0.001 **
PDQ-8	0.1789	0.425	<0.001 **
BDI of PD patients	0.0671	0.175	0.069
Caregiver age	0.0061	0.078	0.413
Caregiver sex (m = 0, f = 1)	0.0199	0.141	0.138
Caregiver educational level (1 = low, 2 = middle, 3 = high)	0.0050	−0.071	0.462
Caregiving hours per day	0.0790	0.272	0.007 *
SF-36 of caregivers	0.0973	−0.348	<0.001 **
BDI of caregivers	0.0586	0.242	0.011 *
AAQ-II of caregivers	0.1163	0.326	0.001 **
MAAS of caregivers	0.0807	−0.282	0.003 **

Linear regression analysis of factors contributing to caregiver burden. p-Value adjustment for multiple comparisons was 0.05/15. * Indicates significant correlations at p < 0.05; ** indicate significance level at p < 0.0033, printed in bold.