Faculty profile

Ian Colman

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Associate ProfessorSchool of Epidemiology and Public HealthUniversity of Ottawa

Ian Colman

Associate Professor

School of Epidemiology and Public Health

Faculty of Medicine

University of Ottawa

Ottawa, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
87 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 6 research grants (6 CIHR), most recently in 2024.
Supervised 3 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

182

Publications

471

Citations

h-index

140

Collaborators

Grants

Publications by year

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

Profiles and links

University Profile Personal Website Search on Google Scholar

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Signals and details

Research

Read how they describe their research on their University of Ottawa profile.

Epidemiology Mental Health Depression Gender Gender Diversity Transgender Adolescents Marginalization

Latest papers

Exposure to low-dose ionizing radiation and dementia mortality in Canadian nuclear power plant workers.
Environmental research · 2026
First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.
The lancet. Psychiatry · 2026
Decision-making and risk-taking as predictors of health risk behaviors in the Millennium Cohort Study.
JCPP advances · 2026 · senior author

All 182 publications

Latest funding

Supportive factors for mental health in transgender and gender diverse youth
CIHR · 2024 · Nominated PI
$309,826
Occupational exposure to low doses of ionizing radiation and incidence of dementia among Nuclear Energy Workers in the Canadian National Dose Registry.
CIHR · 2023 · Supervisor
$105,000
Exploring the Longitudinal Trajectories of Caregiver Distress and its Effects on Downstream Health and Function
CIHR · 2023 · Co-investigator
$69,723

All 14 grants and awards

From the 150 most recent of 182 publications.

Exposure to low-dose ionizing radiation and dementia mortality in Canadian nuclear power plant workers.

Frangione B, Rodriguez Villamizar LA, Colman I, Momoli F, Davesne E, Zablotska L, Peters CE, Demers P, Do M, Prendergast T, Prince P, Villeneuve PJ

Environmental research2026

DOI: 10.1016/j.envres.2026.124067 PMID: 41720440

First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.

Myran DT, Gibb M, Pugliese M, Fiedorowicz J, Kirkbride JB, Anderson KK, Kurdyak P, Tibbo PG, Colman I, Correll CU, Ramsay T, Solmi M

The lancet. Psychiatry2026

DOI: 10.1016/s2215-0366(25)00395-5 PMID: 41720572

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 advances2026Senior author

DOI: 10.1002/jcv2.70071 PMID: 42416671

Perceived need for care and treatment-seeking behaviour among ethnic minority groups exhibiting signs of mental illness.

Obeegadoo I, Engoute O, Sodhi P, Simpson N, Roberts S, Sabourin Jovel MC, Ferro MA, Afifi TO, Edwards J, Anderson KK, Samji H, Colman I

Journal of affective disorders2026Senior author

DOI: 10.1016/j.jad.2025.120901 PMID: 41407120

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 psychiatry2026

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

Patterns in Mental Health- and Substance Use-Related Visits From 2003 to 2022 Among Registered Ontario Physicians.

Gibb MA, Harrison L, Dumicho AY, Sood MM, Tanuseputro P, Moledina A, Tuna M, Halilou T, Kendall CE, Colman I, Fernando SM, Roberts RL, Maskerine C, Myran DT

Annals of internal medicine2026

DOI: 10.7326/annals-24-01069 PMID: 41248497

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 open2026

DOI: 10.1001/jamanetworkopen.2026.26797 PMID: 42599709

The Intersection of Ethno-Racial Identity and Gender Identity in Current Cannabis Use Among Adolescents.

Akther A, Colman I, Patte KA, Hilario CT, Leatherdale ST, Imtiaz S, Elton-Marshall T

Substance use & misuse2026

DOI: 10.1080/10826084.2026.2695444 PMID: 42522209

Mental health status of sexually diverse youth at age 23: Cross-sectional data from the Quebec Longitudinal Study of Child Development.

Martineau A, MacNeil S, Iyer SN, London-Nadeau K, Anzarouth L, Chartrand É, Colman I, Orri M, Chadi N, Ouellet-Morin I, Ryan NC, Sansfaçon AP, Juster RP, Geoffroy MC

Canadian journal of public health = Revue canadienne de sante publique2026

DOI: 10.17269/s41997-026-01235-5 PMID: 42484771

Longitudinal studies of neighbourhood social cohesion and mental health: a systematic review with meta-analysis.

Blair DL, Eccles H, Akther A, Obeegadoo I, Abud A, Matic V, Kingsbury M, Nykiforuk CIJ, Elton-Marshall T, Kirkbride JB, Colman I

Health & place2026Senior author

DOI: 10.1016/j.healthplace.2026.103702 PMID: 42378952

Profile data last refreshed on September 25, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Ian Colman

Research

Latest papers

Latest funding

Exposure to low-dose ionizing radiation and dementia mortality in Canadian nuclear power plant workers.

First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.

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

Perceived need for care and treatment-seeking behaviour among ethnic minority groups exhibiting signs of mental illness.

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

Patterns in Mental Health- and Substance Use-Related Visits From 2003 to 2022 Among Registered Ontario Physicians.

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

The Intersection of Ethno-Racial Identity and Gender Identity in Current Cannabis Use Among Adolescents.

Mental health status of sexually diverse youth at age 23: Cross-sectional data from the Quebec Longitudinal Study of Child Development.

Longitudinal studies of neighbourhood social cohesion and mental health: a systematic review with meta-analysis.

Frequent collaborators

Jean-Philippe Chaput

Marie-Claude Geoffroy

Laura Duncan

Simon Hatcher

Douglas Manuel

Massimiliano Orri

Ian Janssen

Danielle Fearon

JianLi Wang

Massimiliano Orri

Alomgir Hossain

Marco Solmi

Ryan Van Lieshout

Isabelle Ouellet-Morin

Tara Elton-Marshall

Isabelle Ouellet-Morin

Ian Manion

Isabelle Ouellet-Morin

Julian Little

David Moher

Kathleen Pajer

Natalie Castellanos Ryan

Nicole Racine

Nicholas Chadi

Natalie Castellanos Ryan

Franco Momoli

Kathy Georgiades

Jordan Edwards

Jitender Sareen

Kathryn Jane Bennett

Khrista Boylan

Harriet MacMillan

John Riva

Jeremy Walsh

Tracy Vaillancourt

Geoffrey Hall

Alexandra Heber

Noam Soreni

Stelios Georgiades

Michelle Lynn Butt