Table 3.

Comparison of mean scores of patients’ knowledge, comprehension, and knowledge application in the intervention and control groups before and after the intervention

Variable		Intervention Mean (SD)	Control Mean (SD)	independent t-test	df	Mean difference (p*)
Knowledge	Baseline	8.02 (4.32)	8.15 (3.37)	-0.14	78	-0.12 (0.88)
	Post-intervention	22.57 (2.70)	8.60 (3.56)	19.74	78	13.97 (<0.001)
	Paired t-test	17.40	1.69
	Df	39	39
	Mean difference (p*)	14.55 (<0.001)	0.45 (0.09)
Comprehension	Baseline	3.32 (1.18)	3.25 (1.27)	0.27	78	0.07 (0.78)
	Post-intervention	7.77 (1.09)	3.20 (1.26)	17.27	78	4.57 (<0.001)
	Paired t-test	18.53	-0.49
	Df	39	39
	Mean difference (p*)	4.45 (<0.001)	-0.05 (0.62)
Knowledge application	Baseline	3.65 (1.40)	3.80 (1.34)	-0.48	78	-0.15 ( 0.62)
	Post-intervention	9.85 (2.23)	3.65 (1.40)	14.84	78	6.20 (<0.001)
	Pair t-test	-13.94	-1.03
	df	39	39
	Mean difference (p*)	6.20 (<0.001)	-0.15 (0.30)

SD: Standard deviation; df: Degree of freedom; p*: p value using t-test