Marie-Josée Fleury, PhD

Contact
flemar@douglas.mcgill.ca
6875 Boulevard LaSalle
Montréal, QC
H4H 1R3
Office:E-3106, Perry Pavilion
Office phone: (514) 761-6137 x4344
ORCID iD: https://orcid.org/0000-0002-4743-8611
Researcher, Douglas Research Centre
Full Professor, Department of Psychiatry, McGill University
Lab name: Organisation and adequacy of mental health services
Division: Mental Health and Society
Mental health problems affect at least 10% of the population in any given year; yet less than half of those affected utilize services for mental health issues. Their level of unmet needs is reportedly high, and varies according to type of needs, different mental health problems and individual profiles. Most notably, persons with mental health problems as well as alcohol and drug dependence, or those experiencing homelessness, have particularly important needs related to their global health, functioning, and activities of daily living; their social networks are often weak. As such, providing adequate help in order to respond to the needs of these individuals involves numerous challenges. Different models of care aimed at improving the efficiency of services and at better serving individuals in the present context of increased service demand and budgetary restraint have been progressively introduced with the overall objective of promoting a culture of best practices and continuing improvement in service delivery. These reforms have especially contributed to the consolidation of primary care, the provision of services in the community, and the integration of health care structures.
The research team on the organization and adequacy of services aims to better understand the needs of persons affected by mental health problems, abuse and dependence on psychoactive substances, and those in situations of homelessness, as well as the transformations and key components that may contribute to improving the delivery of care. By providing new findings on the determinants of needs, on service utilization as a function of different service user profiles, and on the organization and processes of care, the team hopes to improve the state of knowledge and to offer recommendations that will optimize mental health services.
Research initiatives undertaken by the team are organized along two major streams:
- Service user stream: This area explores interactions among the sociodemographic, economic, and clinical characteristics of service users; the evaluation of their met and unmet needs; help received; service utilization, as well as users’ degree of satisfaction with services. The objective is to better understand service trajectories and their impact on the community integration of service users as well as on their mental health recovery.
- Organizational stream: In the context of present reforms, this stream concerns the organization of services in local networks, their structuring, their dynamics, and practices employed. It aims to better understand organizational characteristics, modes of integration and the efficacy of practices in terms of their contribution to improved performance and to the overall quality of the system, notably in primary care and in specialized services including emergency services.
The team uses a variety of research methods: surveys, administrative databases, case studies, etc. The perspectives of managers, clinicians and service users are taken into account. While the team is composed of researchers and research agents with a variety of competencies, its work implies the active participation of decision makers, clinicians and service users. The team also benefits from several sources of research funding.
For any questions on the team’s projects, please contact:
Marie-Josée Fleury, PhD, Principal Investigator, flemar@douglas.mcgill.ca or
Guy Grenier, PhD, Research Associate, guy.grenier@douglas.mcgill.ca
Marie-Josée Fleury joined the research team at the Douglas Institute in 2002, after obtaining a doctorate in public health. She is Professor in the Department of Psychiatry at McGill University, and Adjunct professor in the School of Public Health at the Université de Montréal. She serves as consultant to the Quebec government as well as European government partners and research groups, especially in Belgium and France. From 2012-2016, she has been the Scientific Director at the Centre de réadaptation en dépendence de Montréal – University Institute, which brings together some 40 member researchers and associates. From 2010-2012, she also served as the mental health expert advisor in developing the 2012 appreciation report on performance of the Commission on Health and Welfare (CSBE) – Québec Health Ministry, which she authored with Dr. Guy Grenier: “Status report on mental health in Québec, and response of the health and social service system”.
She has published more than 350 papers, and provided as many conferences. She also received salary awards from 2002 to 2014 (CIHR, FRQS), and has been awarded many research grants, including several for projects currently under her direction. Her research seeks a better understanding of key components for improving healthcare systems, and the adequacy of services in relation to the needs of service users, particularly in the areas of mental health, addiction, and homelessness. Her lines of research deal with health system analysis, policy and service assessment, and implementation studies. She also conducts epidemiological and outcome studies.
FRQS, Senior Investigator Award, 2011-2014
CIHR, New Investigator Salary Award, 2006-2011
FRQS, Junior II Researcher Salary Awards, 2006-2010 (declined)
FRQS, Junior I Researcher Salary Award, 2002-2006
Guy Grenier, Ph.D., Research Associate
Armelle Imboua, M.D., M.Sc., Research Coordinator
Zhirong Cao, M.Sc., senior statistician
Jacques Desfossés, Research Agent
Sharmin Sharker, M.Sc., Statistician
Ovidiu Tatar, Ph.D., Postdoctoral Fellow
Veronica Lammatteo, M.D., Psychiatry Resident
Current students in the team: Émilie Laberge-Perrault, Pamela Obegu, Joseph Kiloka, Julie Grondin, Camille Gagné
Key publications
Conférences diffusées sur le web / Web conferences
Abrégés de recherche / Research Summaries
Publications
Fleury, M.-J., L. Rochette, Z. Cao, G. Grenier, V. Massamba A. Lesage. Profiles of physician follow-up care, correlates and outcomes among patients affected by an incident mental disorder (2025), BMC Primary Care, 26(7): 17 p., https://doi.org/10.1186/s12875-024-02674-0.
Fleury, M.-J., Z. Cao, G. Grenier (2024). Emergency department use among patients with mental health problems: Profiles, correlates and outcomes, International Journal of Environmental Research and Public Health, 21(864): 1-18, https://doi.org/10.3390/ijerph21070864.
Fleury, M.-J., Z. Cao, G. Grenier, E. Rahme (2024). Profiles of quality of outpatient care among individuals with mental disorders based on survey and administrative data, Journal of Evaluation in Clinical Practice, 30: 1373-1385, DOI:10.1111/jep.14052.
Armoon, B.*, G. Grenier, M.-J. Fleury (2024). Perceived higher unmet needs for care among residents in permanent supportive housing, Administration and Policy in Mental Health and Mental Health Services Research, May 31, 1-14, https://doi.org/10.1007/s10488-024-01390-2.
Fleury, M.-J., L. Rochette, L. Gentil*, G. Grenier, A. Lesage (2024). Predictors of physician follow-up care among patients affected by an incident mental disorder episode in Quebec, Canadian Journal of Psychiatry, 69(2):100-115, DOI: 10.1177/07067437231182570.
Fleury, M.-J. (2023). Notions et brève évaluation de la qualité des services en santé mentale au Québec (Éditorial), Santé mentale au Québec. Numéro spécial sur la Qualité des services en santé mentale, XLVIII(2), 13-27, DOI10.7202/1109832ar.
Fleury, M.-J., Z. Cao, G. Grenier, C, Huỳnh (2023). Profiles of quality of outpatient care received, associated sociodemographic and clinical characteristics, and adverse outcomes among patients with substance-related disorders, Substance Abuse Treatment, Prevention, and Policy, 18(5): 1-13, https://doi.org/10.1186/s13011-022-00511-0j.
Fleury, M.-J., M. Fortin, L. Rochette, G. Grenier, C. Huynh, E. Pelletier, H.-M. Vasiliadis (2019). Assessing quality indicators related to mental health emergency room utilization. BMC Emergency Medicine, 19(1): 8, https://doi.org/10.1186/s12873-019-0223-8.
Fleury, M.-J., L. Rochette, M. Fortin, A. Lesage, H.-M. Vasiliadis, C. Huynh, E. Pelletier (2019). Surveillance de l’utilisation des urgences au Quebec par les patients ayant des troubles mentaux (Report de recherche). Institut national de santé publique du Quebec (INSPQ), 21 p. https://www.inspq.qc.ca/sites/default/files/publications/2580_surveillance_utilisation_urgences_patients_troubles_mentaux.pdf
Fleury, M.-J., G. Grenier, C. Vallée, D. Aubé, L. Farand, J.-M. Bamvita, G. Cyr (2016). Implementation of the Quebec mental health reform (2005-2015). BMC Health Services Research, 16(1): 586.
Fleury, M.-J., J.-M. Bamvita, G. Grenier, N. Schmitz, M. Piat, J. Tremblay (2016). Adequacy of help received by individuals with severe mental disorders after a major healthcare reform in Quebec: Predictors and changes at 5-year follow-up. Administration and Policy in Mental Health, 43(5): 799-812.
Fleury, M.-J., A. Djouini, C. Huynh, J. Tremblay, F. Ferland, J.-M. Ménard, G. Belleville (2016). Remission from substance-use disorders: A systematic review and meta-analysis. Drug and alcohol dependence, Nov 1; 168: 293-306. doi: 10.1016/j.drugalcdep.2016.08.625. Epub 2016 Aug 29.
Chauvet, M., Kamgang, E., Ngamini Ngui, A., & Fleury, M.-J. (2015). L’Addiction aux substances psychoactives: Prévalence, utilisation des services et bonnes pratiques. Cahier de recherche du CRDM-IU, Montréal, 198 p.
Fleury, M.J. in collaboration with Delorme, A., Guest editors (2014). Special issue on Politiques de santé mentale. Revue santé mentale au Québec (RSMQ), 39(1).
Fleury, M.-J., L. Farand, D. Aubé, A. Imboua (2012). Management of mental health problems by general practitioners in Quebec/La prise en charge des troubles de santé mentale chez les omnipraticiens du Québec. Canadian Family Physician, 58 (12): e732-738, e725-731.
Fleury, M.-J., Bamvita, J.-M., Farand, L., Aubé, D., Fournier, L. & Lesage, A. (2012). GP group profiles and involvement in mental health care. Journal of Evaluation in Clinical Practice, 18(2): 396-403.
Fleury, M.-J. & Grenier, G. (2012). État de situation sur la santé mentale au Québec et réponse du système de santé et des services sociaux. Québec, Commissaire à la santé et au bien-être.
Fleury, M.-J., M. Tremblay, H. Nguyen, L. Bordeleau (2007). Le système sociosanitaire au Québec. Régulation, gouvernance et participation. Montréal: Gaëtan Morin Publisher, 513 p.
Conférences diffusées sur le web / Web conferences
- Fleury, M.-J. (2024), La qualité des soins en santé mentale au Québec, Revue Santé Mentale au Québec
- Fleury, M.-J. (2024), La qualité des soins offerts aux usagers ayant des dépendances: profiles et abandon en traitement, Institut universitaire sur les dépendances (IUD)
- Fleury, M.-J. (2024), Abandon des traitements dans les centres de réadaptation en dépendance du Québec (CRD): prédicteurs, profils des patients et résultats, CI-RISQ
- Fleury, M.-J., M. Gabet, F. Gaida, T. Chen (2023), High emergency department (ED) use: user profiles, needs, issues and strategies to reduce high ED use, Douglas Institute
- Fleury, M.-J. (2023), Les besoins, la qualité de vie et l’insertion sociale des résidents en logement permanent avec soutien (approche RSA), Réseau de recherche en santé des populations du Québec (RRSPQ), axe Santé mentale des populations (SMP)
- Fleury, M.-J. (2023), L’accessibilité des services de santé mentale au Québec, Dialogue McGill
- Fleury, M.-J. (2022), Profils, utilisation des services et résultats de santé des usagers utilisant les centres de réadaptation en dépendance (CRD) au Québec, Le Sommet sur les dépendances
- Fleury, M.-J. (2015), Les troubles concomitants: prévalence, utilisation des services et prise en charge, Recherche et intervention sur les substances psychoactives (RISQ)
- Fleury, M.-J. (2014), Cerner les stratégies clés et les conditions de succès de l’intégration en réseau dans le secteur de la toxicomanie.” Colloque Alliance recherche université et collectivité (ARUC)-RISQ
- Fleury, M.-J. (2013), Les troubles concomitants: perspectives Québec/France.”, Les 8èmes assises de l’addictologie, Lille, France
Abrégés de recherche / Research Summaries
- Fleury, M.-J., B. Armoon, Facteurs associés à la qualité de vie et à l’intégration communautaire des résidents en logement permanent avec soutien, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia (3 p.), Février 2025 – Numéro 29
- Fleury, M.-J., G. Grenier, Profils de patients avec troubles mentaux qui utilisent l’urgence et raisons expliquant leur recours fréquent à l’urgence, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia (3 p.), Février 2025 – Numéro 28
- Fleury, M.-J., B. Armoon, G. Grenier, Besoins non comblés et profils des résidents en logement permanent avec soutien en fonction de leur qualité de vie et de leur intégration communautaire, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia (3 p.), Février 2025 – Numéro 27
- Armoon, B., M.J. Fleury, Z. Cao, G. Grenier, X. Meng, Profils des utilisateurs fréquents des urgences ayant des troubles mentaux, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia (2 p.), Février 2024 – Numéro 19
- Fleury, M.-J., Z Cao, G. Grenier, C. Huynh (2024). Les profils des usagers ayant des troubles liés aux substances psychoactives concernant la qualité des soins ambulatoires reçus, et caractéristiques individuelles et effets négatifs subséquents associés, Les abrégés de recherche du RISQ
- Fleury, M.-J., Z Cao, G. Grenier, C. Huynh (2024). Les prédicteurs de décès par maladie physique ou par cause externe chez des usagers présentant des troubles liés aux substances psychoactives, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia (2 p.), réalisé par le RQSHA dans le cadre de la semaine de prévention du suicide, Février 2024 – Numéro 17 :1-2
- Gabet, M., Z Cao, M.-J. Fleury (2022). Suivi ambulatoire pour les patients après une visite aux urgences due à un trouble mental incident: déterminants, profils et résultats de santé, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia, Numéro 8 – November, 2 p.
- Fleury, M.-J., G. Grenier, Z. Cao, C. Huỳnh (2022). Profils des patients ayant des troubles liés au cannabis, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia, Numéro 1 – Mai, 2 p.
- Fleury, M.-J., G. Grenier, L. Gentil, P. Roberge (2022). Implantation, impact perçu et profils des médecins spécialistes répondants en psychiatrie quant à leur capacité d’améliorer le traitement des troubles mentaux au niveau des soins primaireset des centres jeunesse, Les abrégés de recherche de l’axe SMP du RRSPQ et de Qualaxia, Numéro 2 – Mai, 3 p.
- Fleury, M.-J., G. Grenier (2021). Impact des types de logements sur l’utilisation des services, la satisfaction, les comportements suicidaires, la stabilité résidentielle, la qualité de vie et l’adéquation des besoins des personnes en situation d’itinérance, Les abrégés de recherche du RISQ, 2 p.
- Fleury, M.-J., G. Grenier, J.-M. Bamvita, F. Ferland (2020). Profils des patients utilisant les services de l’urgence hospitalière pour des troubles mentaux et des troubles liés à l’utilisation des substances, Les abrégés de recherche du RISQ, 2 p.
- Fleury, M.-J., M. Fortin, L. Rochette, G. Grenier, C. Huỳnh, E. Pelletier, A. Lesage, Vasiliadis (2019). Utilisation des urgences par les patients avec troubles mentaux ou liés aux substances au Québec, Les abrégés de recherche de l’Institut universitaire sur les dépendances (IUD), 2 p.
- Fleury, M.-J., A. Djouini, C. Huỳnh, J. Tremblay, F. Ferland, J.-M. Ménard, G. Belleville (2017). Les troubles liés à l’utilisation des substances: Troubles aigus ou chroniques?, Les abrégés de recherche, Institut universitaire sur les dépendances (IUD), Septembre, 2 pages, Web publication: Web site, Centre de réadaptation en dépendance du Québec – Institut universitaire.
- Fleury, M.-J., G. Grenier, J.-M. Bamvita, M. Perreault, J. Caron (2014). Predictors of alcohol and drug dependence. Abrégé de recherche du RISQ
Lab images - click to view:
Publications
2026
Long‑Term Gambling Disorder Care Trajectories and Associated Patient Characteristics and Quality of Care Journal Article
In: J Gambl Stud, 2026, ISSN: 1573-3602.
Emergency department use trajectories over a 10-year period among patients with substance-related disorders Journal Article
In: J Subst Use Addict Treat, vol. 191, pp. 210081, 2026, ISSN: 2949-8759.
In: Gen Hosp Psychiatry, vol. 102, pp. 115–122, 2026, ISSN: 1873-7714.
Care trajectories of Quebec patients with substance-related disorders within five years before death Journal Article
In: Psychiatry Res, vol. 361, pp. 117130, 2026, ISSN: 1872-7123.
In: BMC Public Health, 2026, ISSN: 1471-2458.
In: Transl Psychiatry, vol. 16, no. 1, 2026, ISSN: 2158-3188.
Factors Associated with the Frequency of Treatment Admissions Over A 13-year Period Among Patients with Gambling Disorder Journal Article
In: J Gambl Stud, 2026, ISSN: 1573-3602.
Profiles of Quality of Outpatient Care Received Among Adolescents and Young Adults with Health Mental Disorders Journal Article
In: Psychiatr Q, 2026, ISSN: 1573-6709.
In: Subst Abuse Treat Prev Policy, vol. 21, no. 1, 2026, ISSN: 1747-597X.
Profiles of quality of care among individuals with suicidal behaviors Journal Article
In: BMC Health Serv Res, vol. 26, no. 1, pp. 221, 2026, ISSN: 1472-6963.
2025
Care Trajectories Among Patients With Substance-Related Disorders in the 3 Years Before Their Last Suicide Attempt Journal Article
In: Suicide Life Threat Behav, vol. 55, no. 6, pp. e70065, 2025, ISSN: 1943-278X.
Barriers to Care Among High Emergency Department Users With Mental Disorders-A Mixed Methods Study Journal Article
In: Int J Ment Health Nurs, vol. 34, no. 6, pp. e70196, 2025, ISSN: 1447-0349.
Predictors of readmission to substance-related disorder treatment over a five-year period Journal Article
In: Int J Drug Policy, vol. 145, pp. 105016, 2025, ISSN: 1873-4758.
General Practitioners' Management of Individuals with Gambling Disorder: A Systematic Review of Practices, Knowledge, Attitudes and Beliefs Journal Article
In: J Gambl Stud, 2025, ISSN: 1573-3602.
In: BMJ Ment Health, vol. 28, no. 1, 2025, ISSN: 2755-9734.
Classes of outpatient quality of care among individuals with substance-related disorders, based on a survey and health insurance registry Journal Article
In: J Subst Use Addict Treat, vol. 170, pp. 209619, 2025, ISSN: 2949-8759.
Reasons Explaining High Emergency Department Use in Patients With Mental Illnesses: Different Staff Perspectives Journal Article
In: Int J Ment Health Nurs, vol. 34, no. 1, pp. e13442, 2025, ISSN: 1447-0349.
[Not Available] Journal Article
In: Sante Publique, vol. 37, no. 3, pp. 87–98, 2025, ISSN: 0995-3914.
Profiles of physician follow-up care, correlates and outcomes among patients affected by an incident mental disorder Journal Article
In: BMC Prim Care, vol. 26, no. 1, pp. 7, 2025, ISSN: 2731-4553.
2024
Perceived Higher Unmet Care Needs among Adults in Permanent Supportive Housing Journal Article
In: Adm Policy Ment Health, vol. 51, no. 6, pp. 843–856, 2024, ISSN: 1573-3289.
News
Gambling addiction treatment underused in Quebec, study finds
Adapted from text by Keila De Pape, McGill University A new study by researchers at McGill University and the Douglas Research Centre, led by senior author Dr. Marie-Josée Fleury, shows that Quebec’s public specialized gambling addiction treatment services remain underused, despite being offered free of charge. Following more than 2,300 people with gambling disorder over…
Dr Marie-Josée Fleury: three recent research summaries in Qualaxia on supportive housing and emergency department use
April 1, 2025 Dr. Marie-Josée Fleury has recently published 3 research abstracts from the SMP axis of the RRSPQ and Qualaxia. Find out more about these recent abstracts below. To consult other similar abstracts, visit Dr. Fleury’s page in the publications / research abstracts section :
Dr. Marie-Josée Fleury receives funding from the Substance Use and Addictions Program
May 13, 2024 Health Canada, through its Substance Use and Addictions Program, has awarded funding to Dr. Marie-Josée Fleury from 2024 to 2028. The Substance Use and Addictions Program has selected Dr. Fleury’s project, “Quality and adequacy of services offered to meet the needs of users with substance use disorders served by Quebec’s addiction rehabilitation centers,…
Publication of a special issue of “Santé mentale au Québec,” edited by Dr. Marie-Josée Fleury
The latest issue of Santé mentale au Québec magazine is now available online. This issue, entitled La qualité des services en santé mentale au Québec (Quality of mental health services in Quebec), provides an overview of mental health services in Québec through a number of articles. Dr. Marie-Josée Fleury directed the production.
Dr. Marie-Josée Fleury obtains a Partnership Development Grant from the SSHRC
September 5, 2023 Congratulations to Drs. Marie-Josée Fleury (principal investigator) and Xiangfei Meng (co-investigator), who was recently awarded a Partnership Development Grant from the The Social Sciences and Humanities Research Council for her submitted project, Défis et enjeux reliés à la stabilité résidentielle et l’insertion sociale de personnes antérieurement en situation d’itinérance logées dans différents modèles…
Call for authors – special issue on the quality of mental health care, revue Santé mentale au Québec – Fall 2023
Revue Santé mentale au Québec is a scientific journal that appears twice a year. Its main objective is to make available to clinicians, managers and researchers new knowledge on mental health, mental disorders and on innovative clinical and social interventions, in addition to being an opinion forum on various topics of interest to the scientific…
Appel à auteur.e.s – numéro spécial sur la qualité des soins en santé mentale, revue Santé mentale au Québec – Automne 2023
La revue Santé mentale au Québec est une revue scientifique qui paraît deux fois par année. Elle a pour principal objectif de rendre disponible aux cliniciens, gestionnaires et chercheurs de nouvelles connaissances sur la santé mentale, les troubles mentaux et sur des interventions cliniques et sociales innovantes en plus d’être un forum d’opinion sur différents…
A wealth of public outreach at 2021 Acfas conference
Dr. Marie-Josée Fleury, Alain Brunet, Outi Linnaranta cited in the McGill Reporter.
Congratulations to our CIHR Project Grant Recipients!
CIHR results for the last project grant competition were published today. Congratulations to all of our researchers named as PIs on successful applications: John Breitner, Alain Brunet, Manuela Ferrari, Marie-Josée Fleury, and Myra Piat! The projects that will benefit from that funding are: Innate immune activity, the aging brain, Alzheimer’s disease pathology and symptoms: a novel approach…
Pandemic exposes cracks in Quebec’s mental health services
Interview with Marie-Josée Fleury in CBC Montreal – Out of the Dark.