Geographical disparities and differences in medical specialty prescribing of dronabinol in Medicare from 2014 to 2019
DeSalve, D. S.; McCall, K. L.; Piper, B. J.
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PurposeThe purpose of our study was to investigate dronabinol prescribing in Medicare from 2014 to 2019 by provider specialty and state. MethodsData was collected and analyzed from the Centers for Medicare & Medicaid Services databases from 2014 to 2019. The mean number of prescriptions for each area of practice, each individual year, and for 2014 to 2019 overall for the 50 United States and District of Columbia was determined. The prescriptions were separated by state and the state totals were determined. Individual states with dronabinol prescriptions [≥]1.96 standard deviations (SD) from the mean were identified as significant. ResultsThe total number of dronabinol prescriptions decreased 9.1% from 2014 to 2019. Dronabinol prescriptions were more concentrated in the eastern United States in 2019 than compared to 2014 [Tennessee (107.2), Kentucky (94.2), and West Virginia (87.6) (>1.96 SD)]. The largest portion of dronabinol prescriptions originated from primary care (1,736) compared to specialty areas of practice (1,233). Internal medicine (789.5), family medicine (608.8), hematology-oncology (343.3), nurse practitioners (337.3), and infectious disease (271.0) had the highest average number of dronabinol prescriptions per year (p<0.05). The areas of practice with the highest ratio of percent dronabinol prescriptions to percent Medicare utilization were infectious disease (15.8), hematology-oncology (12.2), and medical oncology (12.1). ConclusionDronabinol usage declined among Medicare patients and became more concentrated in the eastern United States. Most prescriptions originated from primary care, although after accounting for Medicare patient utilization, the highest ratios originated from infectious disease, hematology-oncology, and medical oncology.
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