Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: A qualitative exploration of prescription opioid injection among street-based drug users in Toronto: behaviours, preferences and drug availability | Harm Reduction Journal BioMed Central Research A qualitative exploration of prescription opioid injection among street-based drug users in Toronto behaviours preferences and drug availability Michelle Firestone 1 2 and Benedikt Fischer1 2 3 Open Access Address 1Centre for Addiction and Mental Health CAMH Toronto Canada 2University of Toronto Toronto Canada and 3Centre for Applied Research in Mental Health and Addictions CARMHA Faculty of Health Sciences Simon Fraser University Canada Email Michelle Firestone - Benedikt Fischer - benedikt_fischer@ Corresponding author Published 17 October 2008 Received 20 December 2007 __ J .IA I IOAU77 ir 17 r - A Accepted 17 October 2008 Harm Reduction Journal 2008 5 30 doi l477-75l7-5-30 This article is available from http content 5 l 30 2008 Firestone and Fischer licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract__ Background There is evidence of a high prevalence of prescription opioid PO and crack use among street drug users in Toronto. The purpose of this qualitative study was to describe drug use behaviours and preferences as well as the social and environmental context surrounding the use of these drugs among young and old street-based drug injection drug users IDUs . Methods In-depth interviews were conducted with 25 PO injectors. Topics covered included drug use history types of drugs used how drugs were purchased and transitions to PO use. Interviews were taped and transcribed. Content analysis was conducted to identify themes. Results Five prominent themes emerged from the interviews l Combination