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‘Less education’ is associated with use and sharing of antiretroviral medications for prophylaxis of HIV infection by US men who have sex with men
  1. G Mansergh1,
  2. B Koblin2,
  3. G N Colfax3,
  4. S A Flores1,
  5. S M Hudson4,
  6. for the Project MIX Study Team
  1. 1Prevention Research Branch, CDC Division of HIV/AIDS Prevention, Atlanta, Georgia, USA
  2. 2Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York, USA
  3. 3San Francisco Department of Public Health and University of California San Francisco, USA
  4. 4Health Research Association, Los Angeles, California, USA
  1. Correspondence to Dr Gordon Mansergh, CDC Division of HIV/AIDS Prevention, 1600 Clifton Rd NE, Mailstop E37, Atlanta, GA 30333, USA; gcm2{at}

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Pre-exposure prophylaxis (PrEP) of HIV infection with antiretroviral therapy (ART) was recently found to reduce HIV infection through sexual contact in men who have sex with men (MSM).1 Non-prescribed use and sharing of ART to prevent HIV infection were reported by MSM in the USA before efficacy was determined.2 We report on demographic factors associated with ART use for prophylaxis purposes prior to known efficacy.

A convenience sample of MSM was enrolled in Chicago, Los Angeles, New York …

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  • The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.

  • Competing interests None.

  • Ethics approval This study was approved by the CDC Institutional Review Board (#3985) and the local ethics boards at each study site institution.

  • Provenance and peer review Not commissioned; internally peer reviewed.