Key result
Atrial fibrillation in hospitalized Medicare patients >65 years old was associated with a significantly increased risk of nonembolic stroke (RR 1.56), embolic stroke (RR 5.80), and mortality (RR 1.31).
Why the study?
Does atrial fibrillation increase the risk of stroke and all-cause mortality in hospitalized Medicare patients older than 65 years?
Cohort (n=4,282,607)
Does atrial fibrillation increase the risk of stroke and all-cause mortality in hospitalized Medicare patients older than 65 years?
Effect estimate: RR 1.56 (nonembolic stroke), RR 5.80 (embolic stroke), RR 1.31 (mortality)
Atrial fibrillation is associated with a significantly increased risk of both embolic and nonembolic stroke, as well as all-cause mortality, among hospitalized older adults.
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Supports AF risk stratification in elderly inpatients; extends observational data to nonembolic stroke and mortality.
Yuan et al. (1998) conducted a cohort in Atrial fibrillation (n=4,282,607). Atrial fibrillation vs. No atrial fibrillation was evaluated on Stroke (embolic and nonembolic) and all-cause mortality (RR 1.56 (nonembolic stroke), RR 5.80 (embolic stroke), RR 1.31 (mortality)). Atrial fibrillation in hospitalized Medicare patients >65 years old was associated with a significantly increased risk of nonembolic stroke (RR 1.56), embolic stroke (RR 5.80), and mortality (RR 1.31).
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