Abstract
Secondary stroke prevention guidelines recommend antithrombotic agents such as over-the-counter aspirin, prescription antiplatelet agents, or anticoagulant agents. The study was designed to measure whether use of outpatient antithrombotic agents is increasing among stroke survivors. The sample consisted of 4168 people who self-reported cerebrovascular disease and who participated in the Medical Expenditure Panel Survey, an annual representative sample of the U.S., during the years 2000-2006. Use of antithrombotic agents was calculated from face-to-face interviews about the use of aspirin and from pharmacies about the use of prescription medications. Cochran-Armitage tests were used to detect temporal trends and multivariate models to identify predictors of use of antithrombotic agents. Pooling results across the 7 years, it was found that 57% were taking aspirin, 66% were using any antiplatelet agent, and 75% were using any antithrombotic agent. After excluding people who said aspirin was unsafe, 81% were using any antithrombotic agent. During the study period, use of prescription antiplatelet agents increased (p<0.001) but there was no temporal change in use of antithrombotic agents overall. In multivariate models, being aged ...Continue Reading
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