Table 3.

Relationship between the number of chronic medications used and the duration of hypertension.

		The overall number of chronic medications used per day
		<5 medications	5 medications	>5 medications	Total
Duration of hypertension	<10 years	258	25	18	301
	10–20 years	116	29	15	160
	>20 years	29	7	9	45
Total		403	61	42	506
Pearson’s χ 2		P<0.001

Statistical significance was determined at P<0.05.