Faculty profile

Marie-Claude Geoffroy

ResearcherPsychiatryMcGill 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 may be missing. Find their university profile.

Marie-Claude Geoffroy

Researcher

Psychiatry

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.
85 publications in the last five years, latest in 2026.
Senior (last) author on 25 recent papers, a sign of leading a research group.
Principal investigator on 12 research grants (10 CIHR, 2 SSHRC), most recently in 2026.
Supervised 7 trainees who won CIHR awards, most recently in 2023.

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

124

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

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Signals and details

Research

Longitudinal Mental Health Epidemiology Suicide Youth Adverse Childhood Experiences Depression Life-Course

Latest papers

Development of Substance Use Problems: The Role of Adolescent Cannabis Age of Onset, Frequency of Use and Childhood Risk Factors.
Research on child and adolescent psychopathology · 2026
Decision-making and risk-taking as predictors of health risk behaviors in the Millennium Cohort Study.
JCPP advances · 2026
Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.
Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026 · senior author

All 124 publications

Latest funding

Adolescents with depression: education, employment, and health in young adulthood. The Douglas Adolescent Depression Cohort linked to longitudinal databases to ages 18-25 years.
CIHR · 2026 · Nominated PI
$761,176
Understanding Provincial and Territorial Suicide Prevention Efforts in Canada (SPEC-PT): A Mixed-Methods Study to Inform a National Suicide Prevention Strategy
CIHR · 2026 · Co-investigator
$745,876
Cannabis use-related harms on neurocognition and mental health: harnessing long-term longitudinal cohorts to study persistence, recovery, risk and resilience.
CIHR · 2026 · Co-investigator
$2,399,100

All 40 grants and awards

124 publications.

Development of Substance Use Problems: The Role of Adolescent Cannabis Age of Onset, Frequency of Use and Childhood Risk Factors.

Hamaoui J, Acland E, Vitaro F, Fallu JS, Parent S, Simard C, Boivin M, Côté S, Geoffroy MC, Séguin JR, Castellanos-Ryan N

Research on child and adolescent psychopathology2026

DOI: 10.1007/s10802-025-01404-z PMID: 41483051

Decision-making and risk-taking as predictors of health risk behaviors in the Millennium Cohort Study.

Hammond NG, Condran G, DeVito EE, Geoffroy MC, Colman I

JCPP advances2026

DOI: 10.1002/jcv2.70071 PMID: 42416671

Developmental Trajectories of Suicidality in Sexually Diverse and Heterosexual Adolescents: Findings From the Quebec Longitudinal Study of Child Development: Trajectoires développementales de suicidalité chez les adolescents hétérosexuels et de la diversité sexuelle : Résultats de l'Étude longitudinale sur le développement des enfants du Québec.

MacNeil S, Sicotte R, Davisse-Paturet C, Chartrand E, Alexander E, Lecousy M, Girard A, Orri M, Chadi N, Ouellet-Morin I, Pullen Sansfaçon A, Iyer SN, Castellanos-Ryan N, Colman I, Juster RP, Geoffroy MC

Canadian journal of psychiatry. Revue canadienne de psychiatrie2026Senior author

DOI: 10.1177/07067437261442420 PMID: 41983935

Young adult self-harm: The role of victimisation and polygenic risk in a population-based longitudinal study.

Marzecki F, Ouellet-Morin I, Zavos HMS, Côté S, Tremblay RE, Gouin JP, Orri M, Boivin M, Geoffroy MC

JCPP advances2026Senior author

DOI: 10.1002/jcv2.70061 PMID: 42416628

It's not just what you have, but when: The role and timing of developmental assets in the mental health of young adults.

Morneau-Vaillancourt G, Thibault M, Bilodeau-Houle A, Comtois-Cabana M, Boivin M, Côté S, Geoffroy MC, Matte-Landry A, Ouellet-Morin I

Journal of research on adolescence : the official journal of the Society for Research on Adolescence2026

DOI: 10.1111/jora.70217 PMID: 42383657

Sexual diversity, adolescent mental health, and adult cannabis use: Longitudinal associations through cannabis use motives.

London-Nadeau K, Pocuca N, Rioux C, Chadi N, Côté SM, Fallu JS, Geoffroy MC, Huynh C, Juster RP, Séguin JR, Castellanos-Ryan N

Addictive behaviors2026

DOI: 10.1016/j.addbeh.2025.108530 PMID: 41175609

The State of Suicide Prevention Training Research.

Guindon J, Notredame CÉ, MacNeil S, Zhang Y, Cai M, Yu S, Spodenkiewicz M, Adams C, Michail M, Boruff J, Maltais N, Shaw S, Langevin R, Séguin M, Sinyor M, Geoffroy MC

Crisis2026Senior author

DOI: 10.1027/0227-5910/a001072 PMID: 42712108

Mental Health Service Use in Sexually and Gender Diverse Youths and Cisgender Heterosexual Youths.

Anzarouth L, MacNeil S, Ryan NC, Martineau A, Orri M, Temcheff C, Dorais M, Girard A, Iyer SN, Colman I, Ouellet-Morin I, Chadi N, Juster RP, Geoffroy MC

JAMA network open2026Senior author

DOI: 10.1001/jamanetworkopen.2026.26797 PMID: 42599709

Investing early in youth mental health: from promise to population evidence.

Geoffroy MC, Côté SM

The lancet. Psychiatry2026First author

DOI: 10.1016/s2215-0366(26)00199-9 PMID: 42413520

Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.

Civita A, Colman I, Orri M, Chartrand E, Dorais M, Spodenkiewicz M, Martinez P, Castellanos-Ryan N, Ouellet-Morin I, Côté SM, Thombs BD, Geoffroy MC

European child & adolescent psychiatry2026Senior author

DOI: 10.1007/s00787-026-03183-4 PMID: 42747516

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2026

Subject: Prospective PhD student: Longitudinal Dear Professor Geoffroy, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Development of Substance Use Problems: The Role of Adolescent Cannabis Age of Onset, Frequency of Use and Childhood Risk Factors." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Adolescents with depression: education, employment, and health in young adulthood. The Douglas Adolescent Depression Cohort linked to longitudinal databases to ages 18-25 years." (2026), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]

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Marie-Claude Geoffroy

Research

Latest papers

Latest funding

Development of Substance Use Problems: The Role of Adolescent Cannabis Age of Onset, Frequency of Use and Childhood Risk Factors.

Decision-making and risk-taking as predictors of health risk behaviors in the Millennium Cohort Study.

Young adult self-harm: The role of victimisation and polygenic risk in a population-based longitudinal study.

It's not just what you have, but when: The role and timing of developmental assets in the mental health of young adults.

Sexual diversity, adolescent mental health, and adult cannabis use: Longitudinal associations through cannabis use motives.

The State of Suicide Prevention Training Research.

Mental Health Service Use in Sexually and Gender Diverse Youths and Cisgender Heterosexual Youths.

Investing early in youth mental health: from promise to population evidence.

Adolescent suicidal distress and adult mental health: findings from a 25-year population based cohort.

The Impact of Adverse Event Memories on Mental Health and Economic Costs: A Population-Based Study and Memory Intervention

Frequent collaborators

Massimiliano Orri

Massimiliano Orri

Michel Boivin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Isabelle Ouellet-Morin

Gustavo Turecki

Frank Vitaro

Natalie Castellanos Ryan

Natalie Castellanos Ryan

Nicholas Chadi

Ian Colman

Vincent Paquin

Jean-Philippe Gouin

Jean-Philippe Gouin

Rachel Langevin

Richard Tremblay

Caroline Temcheff

Andrea Benedetti

Andrea Benedetti

Sonia Lupien

Lise Gauvin

Frederick Philippe

Catherine Malboeuf-Hurtubise

Lise Gauvin

Danielle Rice

Nicole Racine

Mark Sinyor

Christopher Gravel

Adrianna Mendrek

Nancy Heath

Margaret Larche

Jordan Edwards

Michel Boivin

Brett Thombs

Marie Hudson

Martin Lepage

Alex Abramovich

Alex Abramovich

Soham Rej