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BACKGROUND Oral anticoagulants (OACs) such as warfarin and non-VKA oral anticoagulants (NOACs) have been recommended for patients with atrial fibrillation (AF) who are at risk for stroke. Whether NOACs have a higher persistence than warfarin is still unclear. This is especially true in China. MATERIAL AND METHODS Data from a large hospital-based cohort in China (China-AF Registry) from 2011 to 2017 were used for this study. Non-valvular AF patients with newly initiated OACs were included. A time-to-event approach was used to analyze patient persistence. The survival distributions of persistence were compared using the log-rank test. A multivariable Cox regression model was used to explore predictors of warfarin and NOACs non-persistence. RESULTS Patients with newly initiated warfarin (n=4845) or NOACs (n=854) were included in this study. Persistence rates at 1, 2, and 3 years were 93.2%, 89.4%, and 87.2% in the warfarin group and 88.8%, 84.3%, and 81.3% in the NOAC group respectively. Non-persistence was significantly higher with NOACs than with warfarin. On multivariate analysis, age &lt;75 years old, outpatient clinic visits, asymptomatic AF, paroxysmal AF, duration of AF &lt;3 years, history of peptic ulcer, and no previous TIA, stroke or thromboembolism were strong predictors of warfarin non-persistence, while in the NOACs group, age &lt;75 years old, outpatient clinic visits, lower education status and no history of congestive heart failure were predictors. CONCLUSIONS Treatment persistence of NOACs was lower than that of warfarin among Chinese patients with AF. Patients with characteristics of non-persistence predictors need special attention to maintain their therapy.

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Long-Term Persistence with Newly-Initiated Warfarin or Non-VKA Oral Anticoagulant (NOAC) in Patients with Non-Valvular Atrial Fibrillation: Insights from the Prospective China-AF Registry