National Healthcare Quality Report, 2006: Table 2.38

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Table 2.38
Percent of patients with adverse drug events: anticoagulant related warfarin, United States, 2004^a
		2004
Population group		Exposed	Adverse events	Percent	Standard error
Total		3,629	318	8.8	0.5
Age	Under 65	345	32	9.3	1.6
	65-74	1,203	87	7.2	0.7
	75-84	1,499	135	9.0	0.7
	85 and over	582	64	11.0	1.3
Gender	Female	2,053	183	8.9	0.6
Gender	Male	1,576	135	8.6	0.7
Race	Black	229	18	7.9	1.8
	Other	116	11	9.5	2.7
	White	3,284	289	8.8	0.5
Diabetes	No	2,454	205	8.4	0.6
Diabetes	Yes	1,175	113	9.6	0.9
Obesity	No	3,164	276	8.7	0.5
Obesity	Yes	465	42	9.0	1.3
Cerebrovascular disease	No	2,617	230	8.8	0.6
Cerebrovascular disease	Yes	1,012	88	8.7	0.9
CHF/pulmonary edema	No	2,106	165	7.8	0.6
CHF/pulmonary edema	Yes	1,523	153	10.0	0.8
COPD	No	2,513	200	8.0	0.5
COPD	Yes	1,116	118	10.6	0.9
Smoking	No	3,228	283	8.8	0.5
Smoking	Yes	401	35	8.7	1.4
Cancer	No	2,765	226	8.2	0.5
Cancer	Yes	864	92	10.6	1.0
Corticosteroids	No	3,340	277	8.3	0.5
Corticosteroids	Yes	289	41	14.2	2.1
Coronary artery disease	No	1,831	127	6.9	0.6
Coronary artery disease	Yes	1,798	191	10.6	0.7
Renal disease	No	2,811	210	7.5	0.5
Renal disease	Yes	818	108	13.2	1.2

^a Data include Medicare beneficiaries discharged from January to December. Readmissions are supposed to be counted in the numerators according to the measure specifications, but were not counted because the data were not available at this time.

Key: CHF: congestive heart failure; COPD: chronic obstructive pulmonary disease.

Source: Centers for Medicare & Medicaid Services, Medicare Patient Safety Monitoring System.

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