Table 2.

Analysis of variance (ANOVA) to determine association between discrete variables and controlled blood pressure among 280 hypertensive patients

variable	P value	Proportion of patients with controlled blood pressure in each group
Educational level	< 0.001	Illiterate	Reading and writing	Junior high school	High school diploma	B.Sc./M.Sc.	Doctorate/PhD
		0.29	0.29	0.44	0.51	0.72	1.00
Occupation	< 0.001	Unemployed	Retired	Market	Housewife	Clerk/military
		0	0.32	0.038	0.40	0.78
Physician type*	0.137

^*There were four categories for physicians: general practitioner, internist, nephrologist, and cardiologist.