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Study reveals racial disparities in access to buprenorphine for opioid use disorder



Buprenorphine, a life-saving medication for opioid use disorder, is far less accessible in geographic areas of the United States with racially and ethnically diverse populations than in predominantly white areas, according to a new study of pre-pandemic data led by health policy scientists at the University of Pittsburgh School of Public Health published today in Journal of Addiction Medicine. 

The study is among the first to examine buprenorphine access at the local, sub-county level, and the findings point to lack of access to medications for opioid use disorder as a potential contributing reason why overdose deaths are rising most rapidly among Black Americans and Native Americans.

The degree is rather striking. Access is substantially better in areas that are very white. When you move to areas with even some racial or ethnic diversity, there is a large decline in the geographic availability of buprenorphine prescribers and prescription fills. In areas that are less than 95 % white, for example, there’s a 45 to 50 % drop.” 


Coleman Drake, Ph.D., assistant professor, Department of Health Policy and Management at Pitt Public Health

The team examined the numbers of buprenorphine prescribers and dispensed buprenorphine prescriptions within geographic regions-;ZIP codes and surrounding areas within a 30-minute drive-;in 2018.

The more ethnically and racially diverse ZIP codes had 45% to 55% fewer buprenorphine prescribers in urban areas and 62% to 79% fewer prescribers in rural areas. Dispensed prescriptions reflected these inequities, as well, with 51% to 76% fewer dispensed in diverse urban areas and 68% to 87% fewer in diverse rural areas. 

Unfortunately, said Drake, efforts leading up to 2018 to increase the number of buprenorphine prescribers have not resulted in equitable access to this treatment. Addressing these disparities will require a two-fold strategy: increasing the number of buprenorphine prescribers in diverse communities and, particularly in urban areas, promoting increased prescribing among those already prescribing the treatment, he said. Additional studies are also needed to determine how more recent changes in provider requirements for prescribing buprenorphine, as well as an increase in telehealth flexibilities, have impacted these health disparities.

Other authors on the study were Dylan Nagy, M.S., of Pitt; Mark K. Meiselbach, Ph.D., Brendan Saloner, Ph.D., and Daniel Polsky, Ph.D., of Johns Hopkins University; Jane M. Zhu, M.D., M.P.P., of Oregon Health & Science University, and Bradley D. Stein, M.D., Ph.D., of RAND Corporation. 

This research was supported by the National Institute on Drug Abuse of the National Institutes of Health under the award numbers K01DA051761 and R01DA045800. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Source:

Journal reference:

Drake, C., et al. (2023). Racial and Ethnic Disparities in Geographic Availability of Buprenorphine. Journal of Addiction Medicine. doi.org/10.1097/ADM.0000000000001287.



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