Table 2.

Low-Dose Aspirin Use and Drug-Aspirin Interactions (n = 683)

	n	%	Valid %
Low-dose aspirin use
No	429	62.8	62.8
Yes	254	37.2	37.2
Prescribed versus self-prescribed aspirin use
OTC	152	22.3	59.8
Rx	102	14.9	40.2
No low-dose aspirin used	429	62.8
Top 5 potentially major aspirin-drug interactions
Hydrochlorothiazide	83		33.7
Metformin	58		22.8
Furosemide	49		15.7
Glipizide	32		12.6
Hydrochlorothiazide + triamterene	25		9.8
Potential major aspirin-drug interactions (among non-aspirin users)
No interaction	146	34.1	34.1
One major interaction	161	37.6	37.6
Two major interactions	81	18.9	18.9
Three or more major interactions	40	9.3	9.3
		Mean ± SD
Frequency of potentially major aspirin-drug interaction for aspirin users		1.3 ± 1.08
Frequency of potentially major aspirin-drug interactions for non-aspirin users		1.1 ± 1.06