Table 2.

Characteristics of users by antihypertensive class, and overlap among classes.

	Beta blockers (N=504)	ACE inhibitors (N=547)	Calcium channel blockers (N=330)	Angiotensin receptor blockers (N=100)	Thiazide diuretics (N=451)	Loop diuretics (N=126)
Mean age (SE)	59.7 (0.5)	58.4 (0.5)	59.4 (0.6)	62.2 (1.0)	57.6 (0.5)	62.6 (0.9)
% 65+	35.5	29.3	36.4	40.0	28.4	44.4
% women	60.5	59.1	62.7	64.0	71.6	67.5
% using beta blockers	100.0	32.4	36.1	40.0	33.0	54.8
% using ACE inhibitors	35.1	100.0	36.4	7.0	35.7	51.6
% using CCBs	23.6	21.9	100.0	35.0	25.1	34.1
% using ARBs	7.9	1.3	10.6	100.0	10.6	13.5
% using thiazide diuretics	29.6	29.4	34.2	48.0	100.0	6.4
% using loop diuretics	13.7	11.9	13.0	17.0	1.8	100.0
% using only this class	31.6	36.8	27.6	19.0	27.5	13.5
% using 2 classes	36.5	36.6	29.7	37.0	45.7	31.0
% using 3+ classes	31.9	26.7	42.7	44.0	26.8	55.6

^*Percents shown are column percents and may not sum to 100.0 due to rounding.

ACE=angiotensin-converting enzyme, CCB=calcium channel blocker, ARB=angiotensin receptor blocker.