Table 4. Differences in knowledge and attitude scores across different demographic variables .

Variables		Knowledge		Attitude		Practice
		Score	P value	Score	P value	Score	P value
Sex	Male	7 (2)	0.28*	6 (2)	0.10	4 (2)	0.29
	Female	7 (2)		7 (3)		4 (1)
Education level	Illiterate	6 (3.5)	0.01**	7 (3)	0.23	4.5 (3)	0.84**
	≤High school/diploma	6 (2)		7 (3)		5 (1.75)
	≥ College degree	7 (2)		7 (2)		4 (1)
Duration of hypertension	1-2 years	7 (1.5)	0.79**	7 (3)	0.11	4 (1)	0.35**
	3-4 years	6 (3)		7 (3)		4 (2.5)
	>5 years	7 (2)		7 (3)		4 (1.75)

*P value Man-whitney U.

**P value Kruskal-Wallis.