Faculty profile

Alain Lesage

ResearcherPsychiatrieMcGill University

This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a McGill University directory, so their courses and email address may be missing. Find their university profile.

Alain Lesage

Researcher

Psychiatrie

Health Sciences

McGill University

Montreal, Quebec, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
27 publications in the last five years, latest in 2026.
Senior (last) author on 14 recent papers, a sign of leading a research group.
Principal investigator on 3 research grants (3 CIHR), most recently in 2015.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

Citations

h-index

Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

Profiles and links

Search on Google Scholar

Find them onX · LinkedIn · Bluesky · YouTube

Signals and details

Research

Déterminants Impacts Implantation Pratiques Psychiatre Répondant Soins Partagés

Latest papers

Healthcare Pattern of Use Before and After Initiating a Long-Acting Antipsychotic Among a Cohort of 6221 Patients With a History of Psychosis.
Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026
Prevalence, Trends and Patterns of ADHD Medication Use Among Children, Adolescents and Young Adults in Quebec, Canada: A Repeated Cross-Sectional Population-Based Study From 2000 to 2022: Prévalence, tendances et profils d'utilisation des médicaments pour le TDAH chez les enfants, les adolescents et les jeunes adultes au Québec (Canada) : étude populationnelle transversale répétée, 2000-2022.
Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026 · senior author
Age, sex, and ethnic differences in substance use and/or substance use disorders among runaway and homeless youth: A meta-analysis and meta-regression.
European child & adolescent psychiatry · 2026

All 94 publications

Latest funding

New approaches to care trajectories and treatments for psychotic spectrum disorders: state sequence analyzes and prediction models in a real-world context
CIHR · 2025 · Co-investigator
$650,251
High Support Housing for People with Serious Mental Illness in Canada: Promoting Mental Health Recovery and Social Inclusion
CIHR · 2024 · Co-investigator
$757,350
The impact of coach-guided risk communication on the risk of major depression: A randomized controlled trial
CIHR · 2023 · Co-investigator
$856,801

All 29 grants and awards

94 publications.

Healthcare Pattern of Use Before and After Initiating a Long-Acting Antipsychotic Among a Cohort of 6221 Patients With a History of Psychosis.

Stip E, Courteau J, Brodeur S, Chiu YM, Fleury MJ, Lesage A, Roy MA

Canadian journal of psychiatry. Revue canadienne de psychiatrie2026

DOI: 10.1177/07067437261462697 PMID: 42370774

Prevalence, Trends and Patterns of ADHD Medication Use Among Children, Adolescents and Young Adults in Quebec, Canada: A Repeated Cross-Sectional Population-Based Study From 2000 to 2022: Prévalence, tendances et profils d'utilisation des médicaments pour le TDAH chez les enfants, les adolescents et les jeunes adultes au Québec (Canada) : étude populationnelle transversale répétée, 2000-2022.

Gignac M, Fansi AAK, Lunghi C, Diallo FB, Rochette L, Massamba V, Vasiliadis HM, Rahme E, Cortese S, Lesage A

Canadian journal of psychiatry. Revue canadienne de psychiatrie2026Senior author

DOI: 10.1177/07067437261471748 PMID: 42647099

Age, sex, and ethnic differences in substance use and/or substance use disorders among runaway and homeless youth: A meta-analysis and meta-regression.

Armoon B, Lesage A, Bahremand A, Potvin S, Mohammadi R, Griffiths MD, Juster RP, Guay S

European child & adolescent psychiatry2026

DOI: 10.1007/s00787-026-02986-9 PMID: 41793455

Using the suicide audit method to examine trajectories of adolescent girls following a suicide attempt in Québec, Canada: a study protocol.

Kourgiantakis T, Mercier É, Côté M, Tousignant RN, Dumais Michaud AA, Maltais N, Rassy J, Lesage A

BMJ open2026Senior author

DOI: 10.1136/bmjopen-2025-115584 PMID: 41927300

Psychiatric Inpatient Length of Stay and Needs: A Cluster Analysis using Machine Learning Algorithms.

Armoon B, Lesage A, Giguère CÉ, Perry K, Consortium S, Juster RP, Guay S

The Psychiatric quarterly2025

DOI: 10.1007/s11126-025-10232-9 PMID: 41339593

Factors influencing length of hospital stay among psychiatric inpatients in Montreal, Canada: The role of insulin, IL-6 and TNF-Alpha.

Armoon B, Lesage A, Giguère CÉ, Perry K, Consortium S, Juster RP, Guay S

Psychoneuroendocrinology2025

DOI: 10.1016/j.psyneuen.2025.107627 PMID: 41061383

Perceived Unmet Need for Care and Barriers to Care Among Individuals with Mental Health Issues: A Meta-analysis.

Armoon B, Lesage A, Mohammadi R, Khoshnazar Z, Varnosfaderani MR, Hosseini A, Fotovvati F, Mohammadjani F, Khosravi L, Beigzadeh M, Griffiths MD

Administration and policy in mental health2025

DOI: 10.1007/s10488-025-01446-x PMID: 40314899

Cluster B personality disorders and psychotropic medications: a focused analysis of trends and patterns across sex and age groups.

Lunghi C, Cailhol L, Massamba V, Renaud S, David P, Laouan Sidi EA, Biskin R, Koch M, Martineau C, Rahme E, Rochette L, Sirois C, Villeneuve E, Vincent P, Lesage A

Social psychiatry and psychiatric epidemiology2025Senior author

DOI: 10.1007/s00127-024-02768-1 PMID: 39287636

Association between stimulant and non-stimulant ADHD medications and completed suicide in adolescents and adults: A population-based nested case-control study.

Vasiliadis HM, Rochette L, Massamba V, Lesage A, Rahme E, Gignac M, Diallo FB, Fansi A, Cortese S, Lunghi C

Psychiatry research2025

DOI: 10.1016/j.psychres.2024.116309 PMID: 39708614

The global prevalence of mental health disorders among runaway and homeless youth: A meta-analysis.

Armoon B, Ghadipasha A, Mohammadi R, Lesage A, Harooni J, Griffiths MD

European child & adolescent psychiatry2025

DOI: 10.1007/s00787-024-02519-2 PMID: 38995408

Something wrong or missing on this profile? Suggest a correction

Alain Lesage

Research

Latest papers

Latest funding

Healthcare Pattern of Use Before and After Initiating a Long-Acting Antipsychotic Among a Cohort of 6221 Patients With a History of Psychosis.

Age, sex, and ethnic differences in substance use and/or substance use disorders among runaway and homeless youth: A meta-analysis and meta-regression.

Using the suicide audit method to examine trajectories of adolescent girls following a suicide attempt in Qu&#xe9;bec, Canada: a study protocol.

Psychiatric Inpatient Length of Stay and Needs: A Cluster Analysis using Machine Learning Algorithms.

Factors influencing length of hospital stay among psychiatric inpatients in Montreal, Canada: The role of insulin, IL-6 and TNF-Alpha.

Perceived Unmet Need for Care and Barriers to Care Among Individuals with Mental Health Issues: A Meta-analysis.

Cluster B personality disorders and psychotropic medications: a focused analysis of trends and patterns across sex and age groups.

Association between stimulant and non-stimulant ADHD medications and completed suicide in adolescents and adults: A population-based nested case-control study.

The global prevalence of mental health disorders among runaway and homeless youth: A meta-analysis.

Frequent collaborators

Norbert Schmitz

Ashok Malla

JianLi Wang

Helen-Maria Vasiliadis

Elham Rahme

Myra Piat

Geneviève Gariépy

JianLi Wang

Luigi De Benedictis

Catherine Briand

JianLi Wang

Alexandre Dumais

Caroline Sirois

Alain Vanasse

Myra Piat

Xavier Trudel

Chantal Brisson

Guy Rouleau

Lynne Moore

Danielle Laurin

Brian Rush

Christine Genest

Amal Abdel-Baki

Steven Clelland

Sylvia Kairouz

Mohammad Hajizadeh

Magaly Brodeur

Mahée Gilbert-Ouimet

Amal Abdel-Baki

Ruth Ndjaboue

Jean Caron

Suzanne Morin

Mireille Cyr

Gustavo Turecki

Eric Latimer

Pasquale Roberge

Mark Smith

Ridha Joober

Janie Houle

Jitender Sareen

Using the suicide audit method to examine trajectories of adolescent girls following a suicide attempt in Québec, Canada: a study protocol.