Volume 111, Issue 11 pp. 2021-2031
Research Report

Non-medical use of prescription opioids is associated with heroin initiation among US veterans: a prospective cohort study

Geetanjoli Banerjee

Geetanjoli Banerjee

Department of Epidemiology, Brown School of Public Health, Providence, RI, USA

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E. Jennifer Edelman

E. Jennifer Edelman

Department of Internal Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA

Yale Center for Interdisciplinary Research on AIDS, Yale School of Public Health, Yale University, New Haven, CT, USA

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Declan T. Barry

Declan T. Barry

Yale University School of Medicine, New Haven, CT, USA

APT Foundation Pain Treatment Services, New Haven, CT, USA

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William C. Becker

William C. Becker

Pain Research, Informatics, Multi-morbidities and Education (PRIME) Center, VA, Connecticut Healthcare System, West Haven, CT, USA

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Magdalena Cerdá

Magdalena Cerdá

Department of Emergency Medicine, University of California, Davis, Sacramento, CA, USA

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Stephen Crystal

Stephen Crystal

Institute for Health, Health Care Policy, and Aging Research, Rutgers University, New Brunswick, NJ, USA

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Julie R. Gaither

Julie R. Gaither

Yale Center for Interdisciplinary Research on AIDS, Yale School of Public Health, Yale University, New Haven, CT, USA

Yale Center for Medical Informatics, Yale School of Medicine, New Haven, CT, USA

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Adam J. Gordon

Adam J. Gordon

Center for Health Equity Research and Promotion (CHERP) & Mental Illness Research Education and Clinical Center (MIRECC), VA Pittsburgh Healthcare System and University of Pittsburgh, Pittsburgh, PA, USA

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Kirsha S. Gordon

Kirsha S. Gordon

VA Connecticut Healthcare System, West Haven, CT, USA

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Robert D. Kerns

Robert D. Kerns

Pain Research, Informatics, Multi-morbidities and Education (PRIME) Center, VA, Connecticut Healthcare System, West Haven, CT, USA

Departments of Psychiatry, Neurology and Psychology, Yale University, New Haven, CT, USA

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Silvia S. Martins

Silvia S. Martins

Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA

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David A. Fiellin

David A. Fiellin

Department of Internal Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA

Yale Center for Interdisciplinary Research on AIDS, Yale School of Public Health, Yale University, New Haven, CT, USA

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Brandon D. L. Marshall

Corresponding Author

Brandon D. L. Marshall

Department of Epidemiology, Brown School of Public Health, Providence, RI, USA

Correspondence to: Brandon Marshall, Department of Epidemiology, Brown University, 121 South Main Street, Providence, RI 02912, USA. E-mail: [email protected]

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First published: 23 August 2016
Citations: 86

Abstract

Aims

To estimate the influence of non-medical use of prescription opioids (NMUPO) on heroin initiation among US veterans receiving medical care.

Design

Using a multivariable Cox regression model, we analyzed data from a prospective, multi-site, observational study of HIV-infected and an age/race/site-matched control group of HIV-uninfected veterans in care in the United States. Approximately annual behavioral assessments were conducted and contained self-reported measures of NMUPO and heroin use.

Setting

Veterans Health Administration (VHA) infectious disease and primary care clinics in Atlanta, Baltimore, New York, Houston, Los Angeles, Pittsburgh and Washington, DC.

Participants

A total of 3396 HIV-infected and uninfected patients enrolled into the Veterans Aging Cohort Study who reported no life-time NMUPO or heroin use, had no opioid use disorder diagnoses at baseline and who were followed between 2002 and 2012.

Measurements

The primary outcome measure was self-reported incident heroin use and the primary exposure of interest was new-onset NMUPO. Our final model was adjusted for socio-demographics, pain interference, prior diagnoses of post-traumatic stress disorder and/or depression and self-reported other substance use.

Findings

Using a multivariable Cox regression model, we found that non-medical use of prescription opioids NMUPO was associated positively and independently with heroin initiation [adjusted hazard ratio (AHR) = 5.43, 95% confidence interval (CI) = 4.01, 7.35].

Conclusions

New-onset non-medical use of prescription opioids (NMUPO) is a strong risk factor for heroin initiation among HIV-infected and uninfected veterans in the United States who reported no previous history of NMUPO or illicit opioid use.

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