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. 2015 Feb 25;86(1):164–170. doi: 10.1002/ccd.25895

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© 2015 The Authors. Catheterization and Cardiovascular Interventions Published by Wiley Periodicals, Inc.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Freedom from Loss of Primary Patency (Overall). Kaplan‐Meier estimate of freedom from loss of primary patency defined as peak systolic velocity ratio (PSVR) <2.0 and no clinically driven reintervention within the stented segment. # At Risk gives the number of patients at risk of an event at the start of the interval, whereas # Censored and # Events are the incremental counts of patients censored or with events during the interval. CI, Confidence interval. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.]