Defining Exposure in Observational Studies Comparing Outcomes of Treatment Discontinuation [Original Articles]

Conclusions:
In an example of long-term antiplatelet use, increasing restrictions on the definition of therapy continuation yielded results consistent with trial estimates by reducing exposure misclassification.

Source: Circulation: Cardiovascular Quality and Outcomes - July 10, 2018 Category: Cardiology Authors: Krumme, A. A., Glynn, R. J., Schneeweiss, S., Choudhry, N. K., Tong, A. Y., Gagne, J. J. Tags: Compliance/Adherence, Stent Original Articles Source Type: research