Validity of Claims-Based Stroke Algorithms in Contemporary Medicare Data: Reasons for Geographic and Racial Differences in Stroke (REGARDS) Study Linked With Medicare Claims [Methods Paper]

Conclusions— Claims-based algorithms to identify stroke in a contemporary Medicare cohort had high positive predictive value and specificity, supporting their use as outcomes for etiologic and comparative effectiveness studies in similar populations. These inpatient algorithms are unsuitable for estimating stroke incidence because of low sensitivity.

http://circoutcomes.ahajournals.org/cgi/content/short/7/4/611?rss=1

Source: Circulation: Cardiovascular Quality and Outcomes - July 15, 2014 Category: Cardiology Authors: Kumamaru, H., Judd, S. E., Curtis, J. R., Ramachandran, R., Hardy, N. C., Rhodes, J. D., Safford, M. M., Kissela, B. M., Howard, G., Jalbert, J. J., Brott, T. G., Setoguchi, S. Tags: Health policy and outcome research, Acute Cerebral Hemorrhage, Acute Cerebral Infarction Methods Paper Source Type: research