Table 7.

Multiple linear regression analysis of patient self-care confidence (HC3 robust standard errors).

Predictor	B	SE	95% CI	t	p	VIF
Constant	−5.263	23.155	−51.066~40.540	−0.227	0.821	—
Gender(Female)	0.094	1.978	−3.819~4.007	0.047	0.962	1.201
Age	−0.391	0.269	−0.923~0.142	−1.450	0.149	1.331
Education level	−2.239	2.626	−7.434~2.956	−0.852	0.396	2.594
Financial pressure	0.855	1.702	−2.513~4.222	0.502	0.617	1.362
NYHA classification	−0.622	1.726	−4.036~2.793	−0.360	0.719	2.107
Time since heart failure diagnosis	0.266	0.213	−0.155~0.687	1.248	0.214	1.867
Times of hospitalization	−1.234	1.885	−4.963~2.494	−0.655	0.514	2.888
Other chronic diseases (Yes)	0.168	2.301	−4.382~4.719	0.073	0.942	1.226
Self-care training experience(Yes)	−2.158	4.136	−10.338~6.023	−0.522	0.603	1.212
Patient health literacy	1.261	0.206	0.853~1.668	6.123	9.83×10⁻⁹	3.559
Patient mutuality	15.928	1.873	12.224~19.632	8.506	3.41×10⁻¹⁴	2.185
Patient social support	0.250	0.300	−0.344~0.844	0.833	0.406	2.028

HC3, heteroskedasticity-consistent covariance matrix estimator type 3; B represents the unstandardized regression coefficient; SE represents the HC3 robust standard error; 95% CI represents the 95% confidence interval for B.