The Effect of Using Peer on Self-Care, Quality of Life, and Adherence in Elderly People with Coronary Artery Disease

Table 3

Comparison of the mean differences of self-care, adherence, and quality of life scores before and after the intervention.

Group variable	Peer education	Control	Mean difference	95% confidence interval		value
	Mean ± SD	Mean ± SD	Mean ± SD	Lower	Upper
Self-care	18.46 ± 7.93	7.06 ± 3.71	11.40	6.76	16.03	<0.001
Adherence	10.93 ± 4.75	3.83 ± 1.55	7.10	4.45	9.74	<0.001
Quality of life	8.20 ± 4.69	2.73 ± 1.62	5.46	2.83	8.09	<0.001

Independent sample t-test.