Faculty profile

Kathleen Pajer

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Full ProfessorPsychiatryUniversity of Ottawa

Kathleen Pajer

Full Professor

Psychiatry

Faculty of Medicine

University of Ottawa

Ottawa, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
31 publications in the last five years, latest in 2026.
Senior (last) author on 9 recent papers, a sign of leading a research group.
Principal investigator on 1 research grant (1 CIHR), most recently in 2025.

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.

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Publications

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Collaborators

Grants

Publications by year

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

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Signals and details

Research

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

Population Health Precision Child & Youth Mental Health

Latest papers

Geographic variation and neighbourhood correlates of mental health-related hospitalizations and emergency department visits in children and youth during the COVID-19 pandemic: a population-based study.
Frontiers in child and adolescent psychiatry · 2026
Machine learning approaches to distinguish bipolar disorder from borderline personality disorder: a scoping review.
BMC psychiatry · 2026 · senior author
Screen Use and Child and Adolescent Health in Canada: Triangulation of Evidence Assessing the State of the Effort.
Child: care, health and development · 2026

All 41 publications

Latest funding

Integrating Precision Child and Youth Mental Health with Population Health: A Community-Researcher Partnership to Co-Produce a Blueprint for Implementation
CIHR · 2025 · Nominated PI
$149,999
WeTakeCare: An internet patient-centered mobile-based interactive communication system to support collaborative mental health care for youth and adolescents with ADHD
CIHR · 2015 · Co-investigator
$150,000
Improving Transitions in Care for Children and Youth with Mental Health Concerns: Implementation and Evaluation of an Emergency Department Mental Health Clinical Pathway
CIHR · 2014 · Co-investigator
$345,000

All 3 grants and awards

41 publications.

Geographic variation and neighbourhood correlates of mental health-related hospitalizations and emergency department visits in children and youth during the COVID-19 pandemic: a population-based study.

Antoniou T, Gozdyra P, Fridman D, Pajer K, Gomes T, Penner M, Tadrous M, Juurlink DN, Gardner W

Frontiers in child and adolescent psychiatry2026

DOI: 10.3389/frcha.2026.1575531 PMID: 42232876

Machine learning approaches to distinguish bipolar disorder from borderline personality disorder: a scoping review.

Dargél A, Tanya T, Mahdiabadi S, Shorr R, Pajer K

BMC psychiatry2026Senior author

DOI: 10.1186/s12888-026-08111-z PMID: 42098710

Screen Use and Child and Adolescent Health in Canada: Triangulation of Evidence Assessing the State of the Effort.

Tremblay MS, Vanderloo LM, Saunders TJ, Madigan S, Kuzik N, Heather L, Zhang ND, Curle M, Helleman A, Goldfield GS, Hall A, Pajer K, Ponti M, Carson V

Child: care, health and development2026

DOI: 10.1111/cch.70204 PMID: 41397414

Hybrid Type II Randomized Controlled Trial of the Goal-Based Outcomes Tool in a Child and Youth Outpatient Mental Healthcare Clinic.

Pajer K, Gardner In Memorium W, Sampasa-Kanyinga H, Helleman A, Sheridan N, Bijelić V, Barrowman N, Murphy D, Robb M, Currie LM, Dunn LC, Law D

Clinical child psychology and psychiatry2026First author

DOI: 10.1177/13591045261422425 PMID: 41656955

Development of an infant and early childhood mental health service at a tertiary care pediatric hospital: a needs assessment, community case study and logic model creation.

M Matheson K, de Schaetzen C, Sheridan N, Holahan AL, Vloet M, Gray S, Carstens J, Postl L, Deren B, Pajer K

Child and adolescent psychiatry and mental health2026Senior author

DOI: 10.1186/s13034-026-01068-7 PMID: 41888944

Loneliness in adolescents and youth with bipolar disorder: a scoping review.

Dargél A, Tanya T, Morris C, Shorr R, Pajer K

Frontiers in psychiatry2026Senior author

DOI: 10.3389/fpsyt.2026.1696515 PMID: 41908110

Telementoring to Strengthen Child and Youth Mental Health Care Capacity in Primary Care Providers: Session Duration and Learning Outcomes.

Pajer K, Gardner W, Ouellette C, Cheng M, Bissex S, MacKay R, MacLaurin T, Gandy H

Clinical pediatrics2025First author

DOI: 10.1177/00099228241270035 PMID: 39183567

Association between a publicly funded universal drug program and antipsychotic and antidepressant medication dispensing to children.

Kitchen SA, Gomes T, Tadrous M, Pajer K, Gardner W, Lunsky Y, Penner M, Juurlink D, Mamdani M, Antoniou T

BMC pediatrics2025

DOI: 10.1186/s12887-024-05345-2 PMID: 39923012

Brief Report: A population-based study of the impact of the COVID-19 pandemic on benzodiazepine use among children and young adults.

Antoniou T, Pajer K, Gardner W, Penner M, Lunsky Y, McCormack D, Tadrous M, Mamdani M, Gozdyra P, Juurlink DN, Gomes T

European child & adolescent psychiatry2025

DOI: 10.1007/s00787-024-02531-6 PMID: 39110190

Risk of neuropsychiatric and related conditions associated with SARS-CoV-2 infection: a difference-in-differences analysis.

Lu Y, Tong J, Zhang D, Chen J, Li L, Lei Y, Zhou T, Aragon LV, Becich MJ, Blecker S, Blum NJ, Christakis DA, Hornig M, Hornig-Rohan MM, Jhaveri R, Jones WS, Keebler AB, Kelleher K, Kim S, Mosa ASM, Pajer K, Platt J, Schwenk HT, Taylor BW, Utidjian LH, Williams DA, Prasad R, Elia J, Forrest CB, Chen Y

Nature communications2025

DOI: 10.1038/s41467-025-61961-1 PMID: 40707478

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 2025

Subject: Prospective PhD student: Population Health Dear Professor Pajer, 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 "Geographic variation and neighbourhood correlates of mental health-related hospitalizations and emergency department visits in children and youth during the COVID-19 pandemic: a population-based study." (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 "Integrating Precision Child and Youth Mental Health with Population Health: A Community-Researcher Partnership to Co-Produce a Blueprint for Implementation" (2025), 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]

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

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Kathleen Pajer

Research

Latest papers

Latest funding

Geographic variation and neighbourhood correlates of mental health-related hospitalizations and emergency department visits in children and youth during the COVID-19 pandemic: a population-based study.

Machine learning approaches to distinguish bipolar disorder from borderline personality disorder: a scoping review.

Screen Use and Child and Adolescent Health in Canada: Triangulation of Evidence Assessing the State of the Effort.

Hybrid Type II Randomized Controlled Trial of the Goal-Based Outcomes Tool in a Child and Youth Outpatient Mental Healthcare Clinic.

Development of an infant and early childhood mental health service at a tertiary care pediatric hospital: a needs assessment, community case study and logic model creation.

Loneliness in adolescents and youth with bipolar disorder: a scoping review.

Telementoring to Strengthen Child and Youth Mental Health Care Capacity in Primary Care Providers: Session Duration and Learning Outcomes.

Association between a publicly funded universal drug program and antipsychotic and antidepressant medication dispensing to children.

Brief Report: A population-based study of the impact of the COVID-19 pandemic on benzodiazepine use among children and young adults.

Risk of neuropsychiatric and related conditions associated with SARS-CoV-2 infection: a difference-in-differences analysis.

Integrating Precision Child and Youth Mental Health with Population Health: A Community-Researcher Partnership to Co-Produce a Blueprint for Implementation

WeTakeCare: An internet patient-centered mobile-based interactive communication system to support collaborative mental health care for youth and adolescents with ADHD

Improving Transitions in Care for Children and Youth with Mental Health Concerns: Implementation and Evaluation of an Emergency Department Mental Health Clinical Pathway

Frequent collaborators

William Gardner

Tony Antoniou

Mina Tadrous

Tara Gomes

Melanie Penner

Yona Lunsky

Yona Lunsky

Muhammad Mamdani

William Gardner

Christina Honeywell

Scott Patten

Ian Colman

Addo Boafo

Roger Zemek

Daniel Vigo

Mario Cappelli

Julian Little

Tea Rosic

David Moher

Katherine Matheson

Nicholas Barrowman

Shuliweeh Alenezi

Brian Rush

Sreelatha Varapravan

Anton Baksh

Espérance Kashala Abotnes

Melissa Brouwers

Sheri Madigan

Eddy Lang

Gary Goldfield