Table 3.

Differential impact of caregiving situation, caregiver characteristics, and environmental factors in influencing QoL of caregivers

Predictors	Beta	R2	R2 change	F change
Step 1
Caregiving situation (Chronic strains)		0.03	0.03	2.53
Difficulty handling bizarre behavior and excessive and uncontrollable emotions	-0.06
Difficulty handling negative symptoms	-0.20*
Social costs associated with care	-0.13
Step 2
Caregivers' characteristics		0.15	0.12	4.78
Year assumed responsibility for care of the relative	-0.05
Caregiver's own chronic illness	-0.25***
Family income	0.01
Living together with the relative	-0.02
Age of caregiver	0.31***
Caregiver's education level	0.17*
Step 3
Environmental factors (Satisfaction with mental health services)	0.14*	0.18	0.03	5.31

* < 0.05, ** < 0.01, *** < 0.001