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Dr. S. Evelyn Stewart

Investigator, BC Mental Health and Substance Use Services Research Institute

Primary research areas

  • Obsessive-compulsive and related disorders throughout the lifespan
  • Family and genetic factors in mental illness
  • Clinical treatment outcomes and predictors

About S. Evelyn Stewart, M.D., F.R.C.P.C.

  • Investigator, BC Mental Health and Substance Use Services Research Institute 
  • Investigator, BC Children's Hospital Research Institute 
  • Theme Lead, Brain, Behaviour and Development Theme, BC Children’s Hospital Research
  • Director of Research, Child, Youth and Reproductive Mental Health, BC Children’s and Women’s Hospitals
  • Research Director, Centre for Mindfulness, BC Children’s Hospital
  • Medical Director, Provincial OCD Program, BC Children’s and Women’s Hospitals
  • Professor, Department of Psychiatry, University of British Columbia 
  • Adjunct Professor, Department of Psychology, Simon Fraser University

Dr. Evelyn Stewart is a professor at the University of British Columbia in the Department of Psychiatry and the founding director of the Provincial Obsessive-Compulsive Disorder Program at BC Children’s and Women’s Hospitals. She is a clinical and neuroscience researcher and a psychiatrist for children, adolescents and adults. Her studies are predominantly driven by ideas and needs expressed by families with whom she works, with a goal of improving evidence-based management.

Dr. Stewart has published over 115 papers, 13 chapters and one book on various aspects of obsessive-compulsive disorder, Tourette syndrome, and related childhood-onset psychiatric conditions. 

She also sits on the Scientific and Clinical Advisory Boards of the International OCD Foundation, Anxiety Canada and the Canadian Academy of Child and Adolescent Psychiatry.

Current active projects

As principal investigator/ co-principal investigator: 

Epigenetics of OCD in response to CBT treatment (H21-01470; OCD epigenetics)

Perspectives and recommendations: Youth obsessive compulsive disorder diagnosis disclosure in the school setting (H21-01261; OCD school disclosure)

Personal Impacts of COVID-19/Coronavirus Study (PICS) (H20-01043; COVID-19 Personal Impact Study)

Mindfulness for Both Parents in Families with Mothers Who Have Postpartum Depression and Anxiety: Online Groups (H20-01884; Online MBI)  

BC Children's Hospital's Child, Youth & Women’s Reproductive Mental Health Programs Patient Registry (H19-00293; Mental Health Patient Registry)

Celecoxib versus placebo as an adjunct to treatment-as-usual in children and youth with obsessive compulsive disorder: A single-site randomized quadruple-blind phase II study (H19-03886; ACE-OCD Study)

PANS and PANDAS in Paediatric Eating Disorders Study (H19-03229; PANDA-monium in ED)

Flexibly dosed intensive exposure and response prevention as a means to maximize outcomes for youth with obsessive compulsive disorder (H18-01654; SMART ERP)

Salivary Biomarkers in Childhood-Onset Obsessive Compulsive Disorder Study (H18-01521; Salivary Biomarkers Study)

Obsessive-Compulsive Disorder (OCD): Survey of School Functioning (H16-01606; OCD School functioning)

Dissociable cognitive underpinnings of false beliefs in obsessive-compulsive disorder (OCD), eating disorders and psychosis in children (H13-00343; Delusions in OCD, ED and psychosis)

A Study of Neurocognition in Pediatric OCD, At-risk Siblings and Healthy Controls (H12-02626; OCD Neurocognition)

Clinical Outcomes following Group-based Family Cognitive-Behaviour Therapy in Pediatric Obsessive-Compulsive Disorder (H12-01656; OCD GF-CBT)

A Study of Sleep and Activity in Pediatric OCD, OCD-Unaffected Siblings, ADHD and Healthy Controls (H14-00008; Sleep and Activity Project)

A Neuroimaging Study of Pediatric OCD, At-Risk Siblings, and Healthy Controls (H12-02650; OCD Neuroimaging)

Obsessive-Compulsive Disorder (OCD) Registry and DNA Repository (H11-01759; OCD registry and DNA repository)

As co-investigator with PIs on the following:

Jehannine Austin (MTHFR Kids study), Jennifer Coelho (Youth ED Registry), Quynh Doan (Phase 4: MyHEARTSMAP Pilot Implementation Study), Ali Eslami (ESCAYPE, TIPSEA, Toolbox, SSMART, RiCAP), Jan Friedman (Genetic Alterations in Rare Diseases), Andrew MacNeily (Psychological conditions and BBD), Robert McMahon (Parent training), Kishore Mulpuri (BCCHR COVID-19 Survey), Tamara Vanderwal (Online movie study), David Wensley (Sleep Lab At Home).

Recent publications 

See Dr. Stewart’s publications on ORCID


Selles R, Best JR, Stewart SE. Family Profiles in Pediatric Obsessive-Compulsive Disorder. Journal of Obsessive-Compulsive and Related Disorders. 2020 October; 27: 100588. doi.org/10.1016/ j.jocrd.2020.100588 (SA) 

Wang JF, Lin S, Best JR, Selles RR, and Stewart SE. Race and Ethnicity in Pediatric OCD: Study of a Clinical North American Sample. Annals of Clinical Psychiatry. 2020 November; 32 (4): e2-e15. doi: 10.12788/acp.0007 (SA) 

Negreiros J, Belschner L, Best JR, Lin S, Yamin DF, Joffres Y, Selles RR, Jaspers-Fayer F, Miller LD, Woodward TS, Honer WG, Stewart SE. Neurocognitive risk markers in pediatric Obsessive Compulsive Disorder. Journal of Child Psychology and Psychiatry. 2019 November. doi.org/10.1111/ jcpp.13153 (SA) 

Jaspers-Fayer F, Lin S, Chan E, Ellwyn R, Lim R, Best J, Belschner L, Lang D, Heran MK, Woodward TS, Stewart SE. Neural correlates of symptom provocation in pediatric obsessive-compulsive disorder. Neuroimaging: Clinical. 2019 October. doi.org/10.1016/j.nicl.2019.102034 (SA) 

Selles RR, Højgaard DRMA, Ivarsson T, Thomsen PH, McBride N, Storch EA, Geller D, Wilhelm S, Farrell LJ, Waters AM, Mathieu S, Lebowitz E, Elgie M, Soreni N, Stewart SE. Symptom insight in pediatric obsessive-compulsive disorder: Outcomes of an international aggregated cross-sectional sample. Journal of American Academy of Child and Adolescent Psychiatry. 2018 August;57(8)615-619. (SA) 

S. Evelyn Stewart, Yu-Pei Hu, Aldrich Leung, Elaine Chan, Dianne M. Hezel, Sarah Yao Lin, Laura Belschner, Casey Walsh, Daniel A. Geller, David L. Pauls, A Multisite Study of Family Functioning Impairment in Pediatric Obsessive-Compulsive Disorder, Journal of the American Academy of Child & Adolescent Psychiatry, Volume 56, Issue 3, 2017, Pages 241-249.e3,ISSN 0890-8567, https://doi.org/10.1016/j.jaac.2016.12.012

SOURCE: Dr. S. Evelyn Stewart ( )
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