Atrial Fibrillation Associated Costs for Stroke Hospitalizations of Medicare Beneficiaries in the Stroke Belt of the United States

Journal of Atrial Fibrillation
Guijing WangMary G George

Abstract

Purpose: To estimate atrial fibrillation (AF)-associated costs for stroke hospitalizations among Medicare beneficiaries aged ≥65 years in a 11-state region called stroke belt in the United States. Methods: Using the 2010 Medicare Provider Analysis and Review File database, we analyzed costs of stroke hospitalizations, conditional on presence of AF (n=226 289) after excluding those with subarachnoid hemorrhage, no information on race, or a length of stay [LOS] of 30 or more days. We employed regression analysis to estimate for defined subgroups the impact of AF on costs while controlling for major potential confounders. Results: The average cost of all stroke hospitalizations was $27 915. The presence of AF increased this cost by $2711 (9.4%; P<0.001). AF-associated costs were $3159, $2610, and $2197 for patients aged 65-74, 75-84, and ≥85 years, respectively (all P<0.001). Among hospitalization with a length of stay (LOS) of 14-29 days, AF increased the costs by $5888 (P<0.001). AF was not associated with higher costs for hospitalizations involving intracerebral hemorrhage. Conclusions: The costs of stroke hospitalizations are high, and they are even higher if the patient has AF. Further information is needed on the costs in pa...Continue Reading

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