Table 3. Average score of knowledge, attitude and self-care behaviors in the intervention and control groups .

	Intervention	Control	P-Value
	Mean(SD)	Mean(SD)
Knowledge
Before	10.6 (3.55)	1.4 (4.33)	P=0.58*
After	13.34 (3.3)	1.24 (3.87)	P=0.001*
Wilcoxon	P=0.001	P=0.434
Attitude
Before	67.63 (7.58)	6.11 (9.7)	P=0.40**
After	69.63 (7.44)	6.73 (7.77)	P=0.001**
Paired t-test	P=0.743	P=0.618
Nutritional behaviors
Before	34.3 (6.2)	3.71 (5.76)	P=0.2**
After	37.65 (7.71)	3.77 (5.77)	P=0.001**
Paired t-test	P=0.001	P=0.323
The use of chelation therapy
Before	8 (2.36)	7.37 (2.32)	P=0.26*
After	9.15 (2.52)	7.28 (2.22	P=0.001*
Wilcoxon	P=0.001	P=0.317
Blood injection
Before	5.41 (1.98)	5.35 (1.93)	P=0.86*
After	6.43 (1.92)	5.37 (1.94)	P=0.01*
Wilcoxon	P=0.001	P=0.37
Referred to specialists
Before	2.47 (1.91)	2.11 (1.9)	P=0.32*
After	3.41 (1.91)	2/11 (1.86)	P=0.002*
Wilcoxon	P=0.001	P=1
Physical activity
Before	1.3 (1.64)	1.4 (1.54)	P=0.57*
After	1.73 (1.71)	1.42 (1.52)	P=0.40*
Wilcoxon	P=0.001	P=0.317
Smoking
Before	5.84 (0.46)	5.73 (0.83)	P=0.89*
After	5.89 (0.37)	5.73 (0.83)	P=0.62*
Wilcoxon	P=0.175	P=0.1
Performance
Before	57.36 (8.54)	5.68 (8.23)	P=0.13**
After	64.28 (11.11)	5.71 (8.22)	P=0.001**
Paired t-test	P=0.001	P=0.66

^*Mann-Whitney, ^**T-test