Clinician Trends in Prescribing Direct Oral Anticoagulants for US Medicare Beneficiaries

Figures

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  Figure 1.. Oral Anticoagulant Claims by Year All available claims for an oral anticoagulant stratified by year. In panel A, all claims included in the study are shown in aggregate. In panels B-E, claims data for cardiologists (B), internal medicine physicians (C), family medicine physicians (D), and advanced practice clinicians (E) are shown.

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  Figure 2.. Prescribers in Anticoagulant Category by Year and Specialty Clinicians were divided into prescriber categories each year; individuals who only prescribed warfarin, individuals who prescribed only a direct oral anticoagulant (DOAC), or individuals who prescribed both. For each specialty, the number of clinicians who fell into each category are shown.

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  Figure 3.. Annual Oral Anticoagulant Prescriber Groups by 2013 Prescribing Behavior In panel A, all clinicians who prescribed an oral anticoagulant from 2013 to 2018 were divided into 3 categories based on 2013 prescriptions: clinicians who only prescribed warfarin, clinicians who prescribed only a DOAC, or clinicians who prescribed both. The proportion of all oral anticoagulants that were DOACs were calculated for each clinician for each subsequent study year. The median (IQR) of the proportion of DOAC scripts for clinicians in each baseline prescriber category are shown. In panel B, the annualized rate of change of DOAC usage and number of beneficiaries is shown for individual clinicians. Panel C shows the 2018 DOAC percentage according to decile of change in beneficiary counts. DOAC indicates direct oral anticoagulants; error bars, interquartile range.