Association between adherence to calcium-channel blocker and statin medications and likelihood of cardiovascular events among US managed care enrollees

Table 4 CV events from 6 months following initiation of SPAA or CCB+statin in primary prevention patients

	Overall	Adherent	Non-Adherent	SPAA	CCB+Statin
N=	(19,447)	(4,693)	(14,754)	(1,537)	(17,910)
12-month Event Rate
Total Events (N)	452	88	364	19	433
Total Person-Years	19,447	4,693	14,754	1,537	17,910
Incidence Rate per 100 person-years	2.32	1.88	2.47	1.24	2.42
Overall Event Rate
Total Events (N)	818	164	654	38	780
Total Person-Years	38,074	9,139	28,935	2,734	35,340
Incidence Rate per 100 person-years	2.15	1.79	2.26	1.39	2.21

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