AHA Journals, Author Interviews, Electronic Records, Medicare, Stroke / 04.07.2014
Validating Medicare Claims Data For Stroke
MedicalResearch.com Interview with
Hiraku Kumamar, MD, MPH
Department of Epidemiology
Harvard School of Public Health, Boston, MA and
Soko Setoguchi-Iwata, M.D.
Duke Clinical Research Institute
Durham, NC 27715
Medical Research: What are the main findings of the study?
Answer: We evaluated the accuracy of discharge diagnosis of stroke in the Medicare claims database by linking it to a nationwide epidemiological study cohort with 30239 participants called REasons for Geographic And Racial Differences in Stroke (REGARDS). We found that among the 282 events captured using a strict claims definition of stroke, 91% were true events. We also found that 12% of the overall strokes had been identified only by Medicare claims, strongly supporting the use of these readily available data for event follow-up in cohort studies.
(more…)