Carolyn Dewa, M.P.H., Ph.D.

Carolyn S. Dewa, M.P.H., Ph.D.


Health Economics

Health Services Research

Health Policy

Community Psychiatry


  • Professor, Department of Psychiatry and Behavioral Sciences
  • Director, Mental Health Services and Evaluation Program
  • Professor, Department of Public Health Sciences


Research/Academic Interests

Dr. Carolyn Dewa's research focuses on work disability related to mental disorders. She also studies the provision and access to mental health services and supports to people experiencing mental illnesses.  Her recent studies have examined the successful continuous employment of people with severe and persistent mental illnesses as well as the work retention of workers with depression and stigma experienced by workers with mental disorders and barriers to work accommodations.


Health Policy and Management


M.P.H., San Diego State University Graduate School of Public Health, San Diego California 1988

Ph.D., The Johns Hopkins University School of Hygiene and Public Health, Baltimore MD 1998

B.A., Wellesley College, Wellesley MA 1985


Department of Health Policy and Management, Harvard University School of Medicine, Boston MA 1994-1996

Professional Memberships

American Public Health Association

International Commission on Occupational Health

International Health Economics Association

Honors and Awards

Unocal of Southern California Foundation Scholarship 1981, 1982, 1983, 1983, 1984, 1985, 2005

United States Public Health Traineeship 1985, 1986, 1987, 1987

United States Agency for Health Care Policy Research (AHCPR) Traineeship 1990, 1991, 1991

United States National Institute of Mental Health (NIMH) Traineeship 1991, 1992, 1993, 1994, 1995, 1995

The John Young Memorial Prize for outstanding paper in health economics 1996, 1996

Ontario Ministry of Health and Long-Term Care Career Scientist Award 2001, 2002, 2203, 2004, 2005, 2006, 2006

Research Mentor Award, International Center of Mental Health Policy and Economics and the World Psychiatric Association 2005, 2005, 2007, 2008, 2009, 2009

Invited Visiting Scientist, Amsterdam Medical Center Coronel Institute of Occupational Health and Vrjie University Medical Center Amsterdam Public Health Research Institute 2016, 2016

University of California, Davis Aggie Hero for dedication to the university, discipline and spirit of giving back 2018, 2018

Select Recent Publications

Dewa CS, Hoch JS, Nieuwenhuijsen K, Parikh S, Sluiter J. Toward Effective Work Accommodations for Depression: Examining the Relationship between Different Combinations of Depression Symptoms and Work Productivity Losses. Journal of Occupational and Environmental Medicine. 61(1):75-80,2019. 

Dewa CS,  Is Work Just Another 4-Letter Word? Canadian Journal of Psychiatry. 63(2):796-97,2018. 

Gaspar F, Zaidel C, Dewa CS, Rates and Predictors of Recurrent Work Disability Due to Common Mental Health Disorders. PLoS ONE. 13(10):e0205170,2018.  

Cimo A, Dewa CS,  Symptoms of Mental Illness and Their Impact on Managing Type 2 Diabetes in Adults. Canadian Journal of Diabetes. 42(2):372-81,2018.  

Dewa CS, Loong D, Trujillo A, Bonato S.  Evidence for the Effectiveness of Police-Based Pre-Booking Diversion Programs in Decriminalizing Mental Illness: A Systematic Literature Review. PLoS ONE. 13(6):e0199368. doi:10.1371/journal.pone.0199368, 2018. 

Dewa CS, Trojanowski L, Tamminga S, Ringash J, McQuestion M, Hoch JS.  Work-Related Experiences of Head and Neck Cancer Survivors: An Exploratory and Descriptive Qualitative Study.  Disability and Rehabilitation.  40(11):1252-58,2018.  

Dewa CS, The Costs of Mental Disorders in the Workplace: Can They Be Decreased? Les coûts de la maladie mentale dépression en milieu de travail : peuvent-ils être réduits ?  la Revue Santé Mentale au Québec.  42(2):31-38,2017. 

Dewa CS, Loong D, Bonato S, Trojanowski L.  The Relationship Between Physician Burnout and Quality of Healthcare in Terms of Safety and Acceptability: A Systematic Review. BMJ Open.  Jun 21;7(6):e015141. doi:10.1136/bmjopen-2016-015141,2017. 

Dewa CS, Trojanowski L, Cheng C, Hoch JS.  Potential Effects of the Choice of Costing Perspective on Cost Estimates: An Example Based on Six Early Psychosis Intervention (EPI) Programs. Canadian Journal of Psychiatry.  61(8):471-79,2016. 

Dewa CS, Trojanowski L, Tamminga S, Ringash J, McQuestion M, Hoch JS.  Advice to Peers and Employers from Head and Neck Cancer Survivors. PLoS ONE.  11(4):e0152944. doi:10.1371/journal.pone.0152944. eCollection 2016,2016. 

Dewa CS, Trojanowski L, Joosten M, Bonato S.  Employer Best Practice Guidelines for the Return-to-Work of Workers on Mental Disorder-related Disability Leave: A Systematic Review. Canadian Journal of Psychiatry.  61(3):176-185,2016