Dependent variable	Independent variable	Regression coefficient β	Standardized regression coefficient β	t	Coefficient of determination R²	Adjusted R²	F
Anxiety score	Constant	20.611	—	7.630**	0.721	0.636	8.478**
	Patient QOL	−0.083	−0.301	−3.153**
	Caregiver QOL	−0.135	−0.298	−2.813**
	Patient gender
	Female	3.677	0.4320	4.657**
	Number of hospitalizations
	2	−3.657	−0.370	−2.499*、
	3	−2.479	−0.256	−2.065*
	Duration of heart failure
	>5 years	−3.733	−0.349	−2.609*
Depression score	Constant	10.520	—	5.077**	0.606	0.585	18.034**
	Patient QOL	−0.099	−0.357	− 3.670**
	Anxiety in patient
	Anxiety score 8 - 21	6.004	0.561	5.862**