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Impact of Atrial Fibrillation on Mortality, Stroke, and Medical Costs

Wolf, Philip A., Mitchell, Janet B., Baker, Colin S., Kannel, William B., D'Agostino, Ralph B.·1998·Archives of Internal Medicine

Abstract

BACKGROUND: The impact of atrial fibrillation (AF) on mortality, stroke, and medical costs is unknown. METHODS: We conducted a prospective cohort study of hospitalized Medicare patients with AF and 1 other cardiovascular diagnosis (CVD) compared with a matched group without AF (n = 26,753), randomly selected in 6 age-sex strata from 1989 MedPAR files of more than 1 million patients diagnosed as having AF. Stroke rates were also determined in another cohort free of CVD (n = 14,267). Total medical costs after hospitalization were available from a 1991 cohort. Cumulative mortality, stroke rates, and costs following index admission were adjusted by multivariate and proportional hazard regression analyses. RESULTS: Mortality rates were high in individuals with CVD, ranging from 19.0% to 52.1% in 1 year. Adjusted relative mortality risk was approximately 20% higher in patients with AF in all age-sex strata during each of the 3 years studied (P < .05). Incidence of stroke was high in individuals with CVD, 6.2% to 15.4% in 1 year, with and without AF, and was at least 5-fold higher than in individuals without CVD. In those with CVD, stroke rates were approximately 25% higher in women with AF (P < .05) but only 10% higher in men. Adjusted total Medicare spending in 1 year was 8.6- to 22.6-fold greater in men, and 9.8- to 11.2-fold greater in women with AF (P < .05). Second- and third-year costs were increased as well. CONCLUSION: Prevention of AF and treatment of patients with AF and associated CVD may yield benefits in reduced mortality and stroke as well as reducing health care costs.

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Metadata

Authors
Wolf, P. A., Mitchell, J. B., Baker, C. S., Kannel, W. B., & D'Agostino, R. B.
Venue
Archives of Internal Medicine
Published
1998-02-09
Volume
158
Issue
3
Pages
229
ISSN
0003-9926 (ISSN-L)
OpenAlex
W2008450235
Cited by
687
References
16
FWCI
13.36
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Impact of Atrial Fibrillation on Mortality, Stroke, and Medical Costs. https://app.cochat.ai/papers/10.1001/archinte.158.3.229
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Wolf, P. A., Mitchell, J. B., Baker, C. S., Kannel, W. B., & D'Agostino, R. B. (1998). Impact of Atrial Fibrillation on Mortality, Stroke, and Medical Costs. Archives of Internal Medicine. https://doi.org/10.1001/archinte.158.3.229

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.