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Bolcato M, Jommi C. Shortage of plasma-derived medicinal products: what is next? narrative literature review on its causes and counteracting policies in Italy. Front Pharmacol 2024; 15:1375891. [PMID: 38769998 PMCID: PMC11102971 DOI: 10.3389/fphar.2024.1375891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/05/2024] [Indexed: 05/22/2024] Open
Abstract
Introduction: This paper describes the peculiarities of the plasma-derived medicinal product (PDMP) market and illustrates the results of a review of the literature on policies aimed at counteracting the shortage of PDMPs. Characteristics of PDMPs: Plasma is primarily used for the industrial production of blood products (80%). The demand for PDMPs, particularly immunoglobulins (IGs), is increasing. However, the production of PDMPs is complex, long (7-12 months), and expensive, accounting, according to US estimates, for 57% of the total costs of PDMPs compared to 14% for small molecules. PDMP market: Unexpected increases in clinical need cannot be addressed in the short term. Once the demand for some diseases is satisfied, the collection and fractionation of plasma will only be used to supply some specific patients. Hence, the full weight of the marginal costs, which remain constant, are borne by a few products. According to last liter economics, the industry stops producing when the marginal revenue equals the marginal cost, thereby reducing the convenience of producing the most commonly used PDMPs (albumin and IG). The imbalance between the demand and supply of PDMPs was exacerbated by the COVID-19 pandemic, which further increased the cost of plasma collection. Shortage issue and possible solutions: Policies to counteract this imbalance have also been discussed. If the demand is inappropriate, it should be reduced. If the demand is appropriate and supply cannot be increased, the demand should be prioritized for patients for whom PDMPs are the only available treatment. If the shortage depends on insufficient supply and technical and allocative efficiency, both production and supply should be improved, together with incentives for all stakeholders involved in the PDMP market to increase the sustainability of production/supply. The paper is focused on this second issue, that is supply-driven unbalance.
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Affiliation(s)
- Matteo Bolcato
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Claudio Jommi
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Novara, Italy
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Etherington C, Palumbo A, Holloway K, Meyer S, Labrecque M, Rubini K, Shorr R, Welch V, Gibson E, Foster T, Haw J, Vesnaver E, Maharshi MT, O’Brien SF, MacPherson P, Dogba J, Steed T, Goldman M, Presseau J. Barriers and enablers to and strategies for promoting domestic plasma donation throughout the world: Overarching protocol for three systematic reviews. PLoS One 2023; 18:e0296104. [PMID: 38128026 PMCID: PMC10735017 DOI: 10.1371/journal.pone.0296104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
INTRODUCTION The growing demand for plasma protein products has caused concern in many countries who largely rely on importing plasma products produced from plasma collected in the United States and Europe. Optimizing recruitment and retention of a diversity of plasma donors is therefore important for supporting national donation systems that can reliably meet the most critical needs of health services. This series of three systematic reviews aims to synthesize the known barriers and enablers to source plasma donation from the qualitative and survey-based literature and identify which strategies that have shown to be effective in promoting increased intention to, and actual donation of, source plasma. METHODS AND ANALYSIS Primary studies involving source or convalescent plasma donation via plasmapheresis will be included. The search strategy will capture all potentially relevant studies to each of the three reviews, creating a database of plasma donation literature. Study designs will be subsequently identified in the screening process to facilitate analysis according to the unique inclusion criteria of each review (i.e., qualitative, survey, and experimental designs). The search will be conducted in the electronic databases SCOPUS, MEDLINE, EMBASE, PsycINFO, and CINAHL without date or language restrictions. Studies will be screened, and data will be extracted, in duplicate by two independent reviewers with disagreements resolved through consensus. Reviews 1 and 2 will draw on the Theoretical Domains Framework and Intersectionality, while Review 3 will be informed by Behaviour Change Intervention Ontologies. Directed content analysis and framework analysis (Review 1), and descriptive and inferential syntheses (Reviews 2 and 3), will be used, including meta-analyses if appropriate. DISCUSSION This series of related reviews will serve to provide a foundation of what is known from the published literature about barriers and enablers to, and strategies for promoting, plasma donation worldwide.
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Affiliation(s)
- Cole Etherington
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Amelia Palumbo
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | | | - Samantha Meyer
- School of Public Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
| | | | - Kyle Rubini
- Lived Experience Partner, London, Ontario, Canada
| | - Risa Shorr
- Learning Services, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Vivian Welch
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Campbell Collaboration, Ottawa, Ontario, Canada
| | - Emily Gibson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | | | - Jennie Haw
- Canadian Blood Services, Ottawa, Ontario, Canada
| | - Elisabeth Vesnaver
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Canadian Blood Services, Ottawa, Ontario, Canada
| | - Manavi T. Maharshi
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | | | - Paul MacPherson
- Division of Infectious Diseases, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Joyce Dogba
- Faculty of Medicine, Université Laval, Québec City, Québec, Canada
| | - Tony Steed
- Canadian Blood Services, Ottawa, Ontario, Canada
| | | | - Justin Presseau
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
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Berger M, Easterbrook A, Holloway K, Devine D, Bansback N. What influences decisions to donate plasma? A rapid review of the literature. Vox Sang 2023; 118:817-824. [PMID: 37470275 DOI: 10.1111/vox.13496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 04/06/2023] [Accepted: 05/08/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND AND OBJECTIVES Plasma has become an essential ingredient for various medical treatments. Many blood collection agencies rely on voluntary non-remunerated donation when collecting plasma, but at present many do not collect sufficient plasma to meet domestic demands. This rapid review sought to explore the factors that have been found to influence people's decisions to donate plasma to inform future research. METHODS Searches were conducted in PubMed, PsycINFO, Social Sciences Citation Index and CINAHL for peer-reviewed journal articles that discussed plasma donation and the factors associated with donor behaviour. Pertinent information from included articles was extracted and arranged in themes. RESULTS In total, 33 articles were included in this review. Three main themes were identified by the authors. The first focused on site-level factors related to blood collection agencies' engagement with plasma donors and their influence on plasma donation experiences. The second theme considered how individual characteristics and experiences influence willingness to donate plasma. The third theme examined social and cultural-level factors, such as how social networks and community shape perceptions and experiences with donation. CONCLUSION Our findings suggest that the current understanding of plasma donation is focused mainly on converting whole blood donors and also centres on individual-level factors to donation. Further research must examine what factors attract non-whole blood donors to become plasma donors, focusing on broader social-level influences. This review will inform policies and interventions for blood collection agencies to increase plasma donors.
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Affiliation(s)
- Mary Berger
- Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
| | - Adam Easterbrook
- Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kelly Holloway
- Donation Policy & Studies, Canadian Blood Services, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Dana Devine
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Donation Policy & Studies, Canadian Blood Services, Toronto, Ontario, Canada
| | - Nick Bansback
- Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Saltzmann C. How to convert whole‐blood donors to plasma donors: An investigation of the mechanisms of awareness of need for plasma and donors' perception of response efficacy. Transfusion 2023; 63:1023-1043. [PMID: 37002707 DOI: 10.1111/trf.17316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Blood donation services need to increase plasma donations to match the rising demand. However, evidence on how to best recruit donors among whole-blood donors is limited. Therefore, this study evaluated the effectiveness of a conversion strategy based on two different mechanisms that drive donor behavior: (a) awareness of the need for plasma donation and (b) perception of response efficacy regarding plasma donation. STUDY DESIGN AND METHODS An online experiment with 246 German Red Cross whole-blood donors (possibility of plasma donation, blood group AB) was conducted using a 2 × 2 factorial, between-subject setup, and a pre-post treatment measurement. The mechanisms varied and were addressed with experimental treatments and measured. Analyses of variance and hierarchical regression models were used to analyze the effects on intention and behavior. RESULTS The intention to donate plasma was low, but increased with treatment (mean valueoverall of intentionbeforeTreatment = 2.63, SD = 1.73 vs. intentionafterTreatment = 3.28, SD = 1.92). Furthermore, 31% of participants expressed willingness to be forwarded to the appointment-scheduling system of the blood donation service for further information. Only the mechanism of response efficacy was significantly associated with the intention to donate plasma (βEfficacy = .254, p = .001; βAwareness of Need = .126, p = .070). DISCUSSION A conversion strategy based on making donors aware of their response efficacy is a promising way to optimize donor panels by shifting them to where they have the greatest impact. However, this study also substantiates the difficulty of such an effort. Blood donation services should invest in persuasion efforts and build personalized integrated marketing communications.
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Affiliation(s)
- Carolin Saltzmann
- Faculty of Business, Economics and Social Sciences, Research Group on Health Marketing Universität Hamburg Von‐Melle‐Park 9 D‐20146 Hamburg Germany
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Castillo G, Vesnaver E, Gibson E, Butler-Foster T, Goldman M, Hill NE, Rosser A, Lapierre D, Rubini KA, MacDonagh R, Miguel G, Palumbo A, MacPherson P, Randall T, Osbourne-Sorrell W, O'Brien SF, Bridel W, Otis J, Greaves M, Al-Bakri TB, Reid M, Labrecque M, Germain M, Orvis S, Clapperton AT, Devine D, Presseau J. Staff perspectives on barriers and enablers to implementing alternative source plasma eligibility criteria for gay, bisexual, and other men who have sex with men. Transfusion 2022; 62:1571-1582. [PMID: 35834537 PMCID: PMC9544875 DOI: 10.1111/trf.17000] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/12/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Canadian Blood Services introduced new eligibility criteria that allows some sexually active gay, bisexual, and other men who have sex with men (gbMSM) to donate source plasma, marking a significant change from time-based deferral criteria. We aimed to identify potential barriers and enablers to implementing the new criteria from the perspective of donor center staff. STUDY DESIGN AND METHODS We conducted Theoretical Domains Framework-informed interviews with staff from two source plasma donation centers in Canada. RESULTS We completed 28 interviews between June 2020 and April 2021. Three themes representing eight domains captured key tensions. Valuing inclusive eligibility criteria: staff support inclusive criteria; many were concerned the new criteria remained discriminatory. Investing in positive donor experiences: staff wished to foster positive donor experiences; however, they worried gbMSM donors would express anger and disappointment regarding the new criteria, staff would experience unease over using stigmatizing criteria and convey nonverbal cues of discomfort, and recurring plasma donors may behave inappropriately. Supporting education, training, and transparency of eligibility criteria: participants believed providing in-person training (i.e., to explain criteria rationale, address discomfort, practice responding to donor questions) and ensuring donors and the public were well-informed of the upcoming changes would improve implementation. DISCUSSION Participant views emphasize the importance of supporting staff through training and transparent communication to optimize the delivery of world-class equitable care for a new cohort of donors who have previously been excluded from plasma donation. Findings inform which staff supports to consider to improve implementation as policies continue to shift internationally.
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Affiliation(s)
- Gisell Castillo
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Elisabeth Vesnaver
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Emily Gibson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | | | - Mindy Goldman
- Medical Affairs and Innovation, Canadian Blood Services, Ottawa, Canada.,Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Canada
| | - Nolan E Hill
- Centre for Sexuality, Calgary, Canada.,Local Advisory Group, Calgary, Canada
| | | | - Don Lapierre
- Medical Affairs and Innovation, Canadian Blood Services, Ottawa, Canada
| | | | | | | | - Amelia Palumbo
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Paul MacPherson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,Department of Medicine, The Ottawa Hospital, Ottawa, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Canada
| | | | | | - Sheila F O'Brien
- Medical Affairs and Innovation, Canadian Blood Services, Ottawa, Canada
| | | | - Joanne Otis
- Department of Sexology, Université du Québec À Montréal, Montreal, Canada
| | | | | | | | | | - Marc Germain
- Héma-Québec, Medical Affairs, Quebec City, Canada
| | | | | | - Dana Devine
- Canadian Blood Services, Vancouver, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, Canada
| | - Justin Presseau
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada.,School of Psychology, University of Ottawa, Ottawa, Canada
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France CR, France JL, Himawan LK. What would it take to convince you to donate? A survey study of the relationship between motivators, barriers, and payment for whole blood, plasma, and platelet donation. Transfusion 2022; 62:1251-1260. [PMID: 35467768 PMCID: PMC9322277 DOI: 10.1111/trf.16886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 01/05/2023]
Abstract
Background With growing discussion about blood donor remuneration, the present study examined the level of payment that may be required to convince individuals to engage in whole blood, plasma, and platelet donations. Study Design and Methods Anonymous online surveys were completed by a college sample [n = 490; 76.9% female; Mean Age = 20.3 (SD = 4.9) years; 32.9% whole blood donors] and a ResearchMatch sample [n = 323; 70.6% female; Mean Age = 50.7 (SD = 16.6) years; 82.7% whole blood donors]. Level of payment needed to motivate whole blood, plasma, and platelet donation was examined as a function of donation history, sample, and gender. In addition, path analyses examined associations between donation motivators, barriers, and payment level. Results Across all types of donation, history of whole blood donation was related to a greater willingness to donate without payment. At the same time, however, sizeable portions of prior donors indicated that monetary payment would convince them to donate whole blood (24%), plasma (51%), or platelets (57%). Across all types of donation, donation‐related barriers (i.e., anxiety, fear) were indirectly related to higher payment levels via lower self‐efficacy and more negative donation attitudes. Donation‐related motivators (i.e., warm glow, regret, and altruism) were indirectly related to lower payment levels via higher self‐efficacy and more positive donation attitudes. Conclusion Despite reporting a strong commitment to nonremunerated blood donation, many respondents with and without a history of blood donation indicated that money would convince them to engage in whole blood, plasma, and platelet donation.
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Affiliation(s)
| | - Janis L France
- Department of Psychology, Ohio University, Athens, Ohio, USA
| | - Lina K Himawan
- Department of Psychology, Ohio University, Athens, Ohio, USA
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Gyuris P, Gáspár BG, Birkás B, Csókási K, Kocsor F. Help Is in Your Blood-Incentive to "Double Altruism" Resolves the Plasma Donation Paradox. Front Psychol 2021; 12:653848. [PMID: 34566745 PMCID: PMC8458749 DOI: 10.3389/fpsyg.2021.653848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/04/2021] [Indexed: 11/13/2022] Open
Abstract
Blood donation is considered as one of the purest forms of altruism. Plasma donation, in contrast, despite being a similar process, is mostly a paid activity in which donors are compensated for their contribution to the production of therapeutic preparations. This creates a so-called "plasma paradox:" If remuneration is promised for a socially useful effort, volunteers with altruistic motives might be deterred. At the same time, regular plasma donors who pursue the monetary benefits of donation might drop out if remuneration stops. The same controversy can be caught in the messages of most plasma donation companies as well: They promise a monetary reward (MR), and at the same time, highlight the altruistic component of donation. In this study, we tested the assumption that emphasizing the social significance enhances the willingness to donate blood plasma more effectively than either MR or the combination of these two incentives. This had to be rejected since there was no significant difference between the three scenarios. Furthermore, we also hypothesized that individuals might be more motivated to donate plasma if there is a possibility of offering an MR toward other socially beneficial aims. We found an increased willingness to donate in scenarios enabling "double altruism", that is, when donating plasma for therapeutic use and transferring their remuneration to nongovernmental organizations, is an option. We propose relying on double altruism to resolve the plasma paradox, and suggest that it could serve as a starting point for the development of more optimized means for donor recruitment.
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Affiliation(s)
- Petra Gyuris
- Institute of Psychology, Faculty of Humanities and Social Sciences, University of Pécs, Pécs, Hungary
| | - Baksa Gergely Gáspár
- Institute of Psychology, Faculty of Humanities and Social Sciences, University of Pécs, Pécs, Hungary
| | - Béla Birkás
- Department of Behavioural Sciences, Medical School, University of Pécs, Pécs, Hungary
| | - Krisztina Csókási
- Institute of Psychology, Faculty of Humanities and Social Sciences, University of Pécs, Pécs, Hungary
| | - Ferenc Kocsor
- Institute of Psychology, Faculty of Humanities and Social Sciences, University of Pécs, Pécs, Hungary
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Grace D, Gaspar M, Klassen B, Lessard D, Anand P, Brennan DJ, Lachowsky N, Adam BD, Cox J, Lambert G, Jollimore J, Hart TA. Stepping Stones or Second Class Donors?: a qualitative analysis of gay, bisexual, and queer men's perspectives on plasma donation policy in Canada. BMC Public Health 2021; 21:444. [PMID: 33663450 PMCID: PMC7932904 DOI: 10.1186/s12889-021-10480-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/18/2021] [Indexed: 11/25/2022] Open
Abstract
Background Men who have sex with men (MSM) are not eligible to donate blood or plasma in Canada if they have had sex with another man in the last 3 months. This time-based deferment has reduced since 2013; from an initial lifetime ban, to five-years, one-year, and now three-months. Our previous research revealed that gay, bisexual, queer, and other MSM (GBM) supported making blood donation policies gender-neutral and behaviour-based. In this analysis, we explored the willingness of Canadian GBM to donate plasma, even if they were not eligible to donate blood. Methods We conducted in-depth interviews with 39 HIV-negative GBM in Vancouver (n = 15), Toronto (n = 13), and Montreal (n = 11), recruited from a large respondent-driven sampling study called Engage. Men received some basic information on plasma donation prior to answering questions. Transcripts were coded in NVivo following inductive thematic analysis. Results Many GBM expressed a general willingness to donate plasma if they became eligible; like with whole blood donation, GBM conveyed a strong desire to help others in need. However, this willingness was complicated by the fact that most participants had limited knowledge of plasma donation and were unsure of its medical importance. Participants’ perspectives on a policy that enabled MSM to donate plasma varied, with some viewing this change as a “stepping stone” to a reformed blood donation policy and others regarding it as insufficient and constructing GBM as “second-class” donors. When discussing plasma, many men reflected on the legacy of blood donor policy-related discrimination. Our data reveal a significant plasma policy disjuncture—a gulf between the critical importance of plasma donation from the perspective of Canada’s blood operators and patients and the feelings of many GBM who understood this form of donation as less important. Conclusions Plasma donor policies must be considered in relation to MSM blood donation policies to understand how donor eligibility practices are made meaningful by GBM in the context of historical disenfranchisement. Successful establishment of a MSM plasma donor policy will require extensive education, explicit communication of how this new policy contributes to continued/stepwise reform of blood donor policies, and considerable reconciliation with diverse GBM communities.
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Affiliation(s)
- Daniel Grace
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON, M5T 3M7, Canada.
| | - Mark Gaspar
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON, M5T 3M7, Canada
| | - Benjamin Klassen
- Community-Based Research Centre, 1007-808 Nelson Street, Vancouver, BC, V6Z 2H2, Canada
| | - David Lessard
- Centre for Health Outcomes Research, McGill University Health Centre, 5252 de Maisonneuve West, Montréal, QC, H4A 3S5, Canada
| | - Praney Anand
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON, M5T 3M7, Canada
| | - David J Brennan
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor St W, Toronto, ON, M5S 1V4, Canada
| | - Nathan Lachowsky
- Community-Based Research Centre, 1007-808 Nelson Street, Vancouver, BC, V6Z 2H2, Canada.,School of Public Health & Social Policy, Faculty of Human & Social Development, University of Victoria, P.O. Box 1700, STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Barry D Adam
- Department of Sociology, Anthropology, and Criminology, University of Windsor, 401 Sunset Ave, Windsor, ON, N9B 3P4, Canada
| | - Joseph Cox
- Direction de santé publique de Montréal, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, 1560 Sherbrooke St E, Montreal, QC, H2L 4M1, Canada
| | - Gilles Lambert
- Direction de santé publique de Montréal, CIUSSS du Centre-Sud-de-l'Île-de-Montréal, 1560 Sherbrooke St E, Montreal, QC, H2L 4M1, Canada
| | - Jody Jollimore
- Community-Based Research Centre, 1007-808 Nelson Street, Vancouver, BC, V6Z 2H2, Canada
| | - Trevor A Hart
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON, M5T 3M7, Canada.,Department of Psychology, HIV Prevention Lab, Ryerson University, 350 Victoria St, Toronto, ON, M5B 2K3, Canada
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