%0 Generic
%A N.B., Allen
%A T.R., Holford
%A M.B., Bracken
%A L.B., Goldstein
%A G., Howard
%A Y., Wang
%A J.H., Lichtman
%D 2010
%T Supplementary Material for: Geographic Variation in One-Year Recurrent Ischemic Stroke Rates for Elderly Medicare Beneficiaries in the USA
%U https://karger.figshare.com/articles/dataset/Supplementary_Material_for_Geographic_Variation_in_One-Year_Recurrent_Ischemic_Stroke_Rates_for_Elderly_Medicare_Beneficiaries_in_the_USA/5120998
%R 10.6084/m9.figshare.5120998.v1
%2 https://karger.figshare.com/ndownloader/files/8705386
%K Stroke, recurrent
%K Small-area analysis
%K Variation, geographic
%K Recurrence
%X Background: While geographic disparities in stroke mortality are well documented, there are no data describing geographic variation in recurrent stroke. Accordingly, we evaluated geographic variations in 1-year recurrent ischemic stroke rates in the USA with adjustment for patient characteristics. Methods: One-year recurrent stroke rates for ischemic stroke (International Classification of Diseases, 9th Revision codes 433, 434 and 436) following hospital discharge were calculated by county for all fee-for-service Medicare beneficiaries from 2000 to 2002. The rates were standardized and smoothed using a bayesian conditional autoregressive model that was risk-standardized for patients’ age, gender, race/ethnicity, prior hospitalizations, Deyo comorbidity score, acute myocardial infarction, congestive heart failure, diabetes, hypertension, dementia, cancer, chronic obstructive pulmonary disease and obesity. Results: The overall 1-year recurrent stroke rate was 9.4% among 895,916 ischemic stroke patients (mean age: 78 years; 56.6% women; 86.6% White, 9.7% Black and 1.2% Latino/Hispanic). The rates varied by geographic region and were highest in the South and in parts of the West and Midwest. Regional variation was present for all racial/ethnic subgroups and persisted after adjustment for individual patient characteristics. Conclusions: Almost 1 in 10 hospitalized ischemic stroke patients was readmitted for an ischemic stroke within 1 year. There was heterogeneity in recurrence patterns by geographic region. Further work is needed to understand the reasons for this regional variability.
%I Karger Publishers