The current U.S. opioid epidemic has fueled an increase in injection drug use and, in turn, an alarming surge in new hepatitis C virus (HCV) infections. Between 2010 and 2015, the incidence of HCV increased by 294% nationally, driven primarily by a rise in injection drug use and risky injection behavior ? namely syringe sharing. This growing epidemic has disproportionately affected young people who inject drugs (PWID) in rural communities. There is an urgent need to implement tailored and effective harm reduction strategies to rural PWID who are disproportionately impacted by HCV. Although research has shown that syringe services and pharmacy syringe sales (i.e sterile syringe sources) are associated with a reduction in injection-mediated risks and HIV transmission, the evidence for whether these services reduce HCV risk among PWID remains mixed. This proposal will applying the risk environment model to evaluate the influence of sterile syringe sources on the HCV risk environment. Specifically, this proposal will evaluate whether spatial proximity to sterile syringe sources and receptive secondary syringe exchange are associated with HCV serostatus among rural PWID.
The aims are: (1) To evaluate the association between road network distance to the nearest sterile syringe source (SSP or pharmacy that sells nonprescription syringes) and HCV serostatus; (2) To use egocentric social network analysis to evaluate the association between receptive secondary syringe exchange and HCV serostatus; (3) to explore and unpack rural PWIDs? perceptions of and experiences with syringe acquisition and syringe sharing practices through in-depth interviews. These findings could help inform the development of future harm reduction interventions in rural New England, a region of the country that has been particularly hard hit by the opioid epidemic and related HCV infections.

Public Health Relevance

Rural people who inject drugs (PWID) suffer disproportionately from hepatitis C (HCV) infections, and would greatly benefit from interventions that reduce HCV transmission. Although sterile syringe sources (syringe service programs and pharmacies that sell syringes) have been shown to reduce HIV transmission, the impact of these resources on HCV risk remains unclear. This study will evaluate whether proximity to sterile syringe sources and receptive secondary syringe exchange are associated with HCV infection status among rural PWID, and also use qualitative interviews to explore the context that surrounds syringe acquisition and syringe sharing practices.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Predoctoral Individual National Research Service Award (F31)
Project #
1F31DA051198-01
Application #
9992978
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Jenkins, Richard A
Project Start
2020-07-06
Project End
2024-07-05
Budget Start
2020-07-06
Budget End
2021-07-05
Support Year
1
Fiscal Year
2020
Total Cost
Indirect Cost
Name
University of Massachusetts Medical School Worcester
Department
Biostatistics & Other Math Sci
Type
Schools of Medicine
DUNS #
603847393
City
Worcester
State
MA
Country
United States
Zip Code
01655