[Retracted] Growth Differentiation Factor-15 Based ABC (Age, Biomarkers, Clinical History)-AF (Atrial Fibrillation)-Bleeding Risk Score for Elderly Patients with Nonvalvular Atrial Fibrillation

Figure 1

Flowchart of enrollment of the study. Of 368 subjects with atrial fibrillation who were aged ≥65 years old, we identified 342 eligible issues with nonvalvular atrial fibrillation. The ABC-AF and HAS-BLED bleeding scores were quantified. All enrolled subjects were followed for at least one year for various degrees of bleeding events (including major bleeding, clinically relevant nonmajor gastrointestinal bleeding, fecal occult blood positive, and other minor bleeding).