Factors associated with willingness to take extended release naltrexone among injection drug users

1 British Columbia Centre for Excellence in HIV/AIDS, St. Paul’s Hospital, 1081 Burrard Street, Vancouver V6Z 1Y6, BC, Canada

2 Department of Family Practice, University of British Columbia, 5950 University Boulevard Street, Vancouver V6T 1Z3, BC, Canada

3 Department of Medicine, University of British Columbia, 10th Floor 2775 Laurel Street, Vancouver V5Z 1M9, BC, Canada

4 Department of Medicine, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland 97239, OR, USA

5 Department of Public Health-Preventive Medicine, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland 97239, OR, USA

6 Division of Epidemiology and Population Health, BC Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver V6Z 1Y6, BC, Canada