Kelly Anderson, PhD


Associate Professor and Graduate Chair

Phone:519.661.2111 ext. 81001


Research Cluster Membership

Research Interests

  • Public Mental Health
  • First-Episode Psychosis
  • Social Determinants
  • Health Services Research
  • Health Administrative Data
  • Systematic Reviews and Meta-Analysis
  • Mixed Methods Research


  • BHSc-Bachelor of Health Sciences, McMaster University
  • MSc-Health Research Methodology, McMaster University
  • PhD-Epidemiology, McGill University

Recent Research Grants

  • The Impact of Cannabis Legalization and Availability on Incidence, Prevalence, and Health Services Utilization for Psychotic Disorders: Population-Based Evidence to Inform Policy Initiatives. (Principal Investigator, Canadian Institutes of Health Research – Project Grant, 2021 – 2022)
  • Lost in translation? Deciphering the role of language differences in the excess risk of psychosis among migrant groups. (Co-Principal Investigator, Department of Psychiatry Collaborative Research Seed Grants, 2021 – 2023)
  • First-Episode Psychosis in Primary Care: Identifying a Risk Profile and Characterizing Patterns of Service Use to Aid Early Detection and Intervention (Principal Investigator, Ontario Ministry of Research, Innovation, and Science – Early Researcher Award, 2018 – 2023)

Selected Publications (Previous 3 Years)

*Asterisk denotes student contributions

  • *Edwards J, Chiu M, Rodrigues R, Thind A, Stranges S, Anderson KK. Examining variations in the prevalence of diagnosed mood or anxiety disorders among migrant groups in Ontario, 1995-2015: A population-based repeated cross-sectional study. Canadian Journal of Psychiatry, In Press.
  • Welk B, Garg A, Anderson KK, *Killin L, Appleton A, Shariff SZ, Reid J. Effect of electronic medication reconciliation at the time of hospital discharge on inappropriate medication use in the community: A time-series analysis. CMAJOpen, In Press.
  • *McRae S, *Edwards J, Speechley KN, Sukhera J, Zou G, Anderson KK. The prevalence and impact of adolescent hospitalization to adult psychiatric units. Early Intervention in Psychiatry, E-Pub.
  • *Rodrigues M, Stranges S, Ryan BL, Anderson KK. The prevalence of physical multimorbidity among people with non-affective psychotic disorders 10 years after first diagnosis: A matched retrospective cohort study. Social Psychiatry and Psychiatric Epidemiology, E-Pub.
  • Adu J, Oudshoorn A, Anderson KK, Marshall CA, Stuart H, Stanley M. Policies and interventions to reduce familial mental illness stigma: A scoping review of empirical literature. Issues in Mental Health Nursing, E-Pub.
  • *Rotenberg M, Tuck A, Anderson KK, McKenzie K. The incidence of psychotic disorders and area-level marginalization in Ontario, Canada: A retrospective cohort study. Canadian Journal of Psychiatry, E-Pub.
  • *Ologundudu OM, *Lau T, Palaniyappan L, Ali S, Anderson KK. Interventions for people at ultra-high risk for psychosis: A systematic review of economic evaluations. Early Intervention in Psychiatry, E-Pub.
  • *Killin L, Hezam A, Anderson KK, Welk B. (2021) Advanced medication reconciliation: A systematic review of the impact on medication errors and adverse drug events associated with transitions of care. The Joint Commission Journal on Quality and Patient Safety, 47(7), 438-451.
  • *Vu T, Anderson KK, Thind A, Some N, Sarma S. (2021) Mental health services utilization in primary care and emergency department settings: Analysis of blended fee-for-service and blended capitation models in Ontario, Canada. Administration and Policy in Mental Health and Mental Health Services Research, 48(4), 654-667.
  • *Rodrigues R, Lai MC, *Beswick A, Gorman DA, Anagnostou E, Szatmari P, Anderson KK, Ameis S. (2021) Pharmacological treatment of attention-deficit/hyperactivity disorder symptoms in children and youth with autism spectrum disorder: A systematic review and meta-analysis. Journal of Child Psychology and Psychiatry, 62(6), 680-700.
  • Clemens KK, Le B, Anderson KK, Shariff SZ. (2021) Childhood food insecurity and incident diabetes: A longitudinal cohort study of 34 042 children in Ontario, Canada. Diabetic Medicine, 38(5), e14396.
  • Kurdyak P, Mallia E, de Oliveira C, Carvalho AF, Kozloff N, Zaheer J, Tempelaar W, Anderson KK, Correll CU, Voineskos AN. (2021) Mortality after a first diagnosis of schizophrenia-spectrum disorders: A population-based retrospective cohort study. Schizophrenia Bulletin, 47(3), 864-874.
  • *Schoer N, Rodrigues R, Reid J, Ryan BJ, Lizotte DJ, Booth R, MacDougall AG, Kurdyak P, Anderson KK. (2021) Patterns of primary care visits prior to a first diagnosis of nonaffective psychotic disorder in Ontario, Canada. Canadian Journal of Psychiatry, 66(4), 406-417.
  • *Alonzo RT, *Hussain J, Stranges S, Anderson KK. (2021) Interplay between social media use, sleep quality, and mental health in youth: A systematic review. Sleep Medicine Reviews, 56, 101414.
  • *Saunders S, Osuch E, Anderson KK, Martin J, Kunnilathu A, John-Baptiste A. (2021) Factors associated with initiation of community-based therapy for emerging adults with mood and anxiety disorders. Early Intervention in Psychiatry, 15(1), 123-132.
  • *Edwards J, *Pananos AD, Thind A, Stranges S, Chiu M, Anderson KK. (2021) A Bayesian approach to estimating the population prevalence of mood and anxiety disorders using multiple measures. Epidemiology and Psychiatric Sciences, 30(e4), 1-7.
  • *Rodrigues M, *Wiener JC, Stranges S, Ryan BL, Anderson KK. (2021) The risk of physical multimorbidity in people with psychotic disorders: A systematic review and meta-analysis. Journal of Psychosomatic Research, 140, 110315.
  • *Vu T, Anderson KK, Devlin R, Some N, Sarma S. (2021) Physician remuneration schemes, psychiatric hospitalizations, and follow-up care: Evidence from blended fee-for-service and capitation models. Social Science in Medicine, 268, 113465.
  • Iyer S, Anderson KK, Shah J, Malla A. (2020) The case for cautious interpretation and replication: Lead-time bias as a potential explanation for the link between duration of untreated psychosis and outcome. American Journal of Psychiatry, 177(12), 1180-1181.
  • Polillo A, Foussias G, Wong A, Ampofo A, Stergiopoulos V, Anderson KK, Bromley S, D'Arcey J, de Oliveira C, Duda L, Henderson J, Kidd S, Kurdyak P, Wang W, Zaheer J, Voineskos AN, Kozloff N. (2020) ED to EPI: Protocol for a pragmatic randomized controlled trial of an SMS (text) messaging intervention to improve the transition from the emergency department to early psychosis intervention for young people with early psychosis. BMJ Open, 10, e042751.
  • MacDougall AG, Kukan S, Price E, Glen S, Bird R, Powe L, Wiener J, Lysaker P, Anderson KK, Norman RMG. (2020) Participatory video as a novel recovery-oriented intervention in early psychosis: A pilot study. International Journal of Social Psychiatry, 66(8), 780-784.
  • Nicholson K, Rodrigues R, Anderson KK, Wilk P, Guaiana G, Stranges S. (2020) Sleep behaviours and multimorbidity risk in middle-aged and older adults: Findings from the Canadian Longitudinal Study on Aging (CLSA). Sleep Medicine, 75, 156-162.
  • *Puka K, Ferro MA, Camfield CS, Levin SD, Smith M, Wiebe S, Zou G, Anderson KK, Speechley K. (2020) Trajectories of quality of life 10 years following a diagnosis of epilepsy in childhood. Epilepsia, 61(7), 1453-1463.
  • *Rotenberg M, Anderson KK, McKenzie K. (2020) Social capital and psychosis: A scoping review. Social Psychiatry and Psychiatric Epidemiology, 55(6), 659-671.
  • Kozloff N, Foussias G, Durbin J, Sockalingam, Addington J, Addington D, Ampofo A, Anderson KK, Barwick M, Bromley S, Cunningham J, Dahrouge S, Duda L, Ford C, Gallagher S, Haltigan JD, Henderson J, Jaouich A, Miranda D, Mitchell P, Morin J, de Oliveira C, Primeau V, Serhal E, Soklaridis S, Urajnik D, Whittard K, Zaheer J, Kurdyak P, Voineskos AN. (2020)  Early Psychosis Intervention – Spreading Evidence-based Treatment (EPI-SET): Protocol for an effectiveness-implementation study of a structured model of care for psychosis in youth and emerging adults. BMJ Open, 10(6), e034280.
  • Wilk P, Ali S, Anderson KK, Clark A, Cook M, Frisbee S, Gilliland J, Haan M, Harris S, *Kiarasi S, Maltby A, Norozi K, Petrella R, Sarma S, *Singh S, Stranges S, Thind A. (2020) Geographic variation in preventable hospitalizations across Canada: A spatial analysis. BMJ Open, 10(5), e037195.
  • Anderson KK, *Edwards J. (2020) Age at migration and the risk of psychotic disorders: A systematic review and meta-analysis. Acta Psychiatrica Scandinavica, 141(5), 410-420.
  • *Hop Wo N, Anderson KK, Wylie L, MacDougall A. (2020) The prevalence of depressive symptoms, anxiety symptoms, and substance use issues among Indigenous post-secondary students in Canada. Transcultural Psychiatry, 57(2), 263-274.
  • *Edwards J, Thind A, Stranges S, Chiu M, Anderson KK. (2020) Concordance between health administrative data and survey structured interview diagnoses for mood and anxiety disorders. Acta Psychiatrica Scandinavica, 141(4), 385-395.
  • Lam M, Li L, Anderson KK, Shariff S, Forchuk C. (2020) Evaluation of the transitional discharge model (TDM) on the use of psychiatric health services: An interrupted time series analysis. Journal of Psychiatric and Mental Health Nursing, 27(2), 172-184.
  • Rodrigues R, *Beswick A, Anderson KK. (2020) Psychiatric hospitalization following psychosis onset: A retrospective cohort study using health administrative data. Early Intervention in Psychiatry, 14(2), 235-240.
  • MacDougall AG, Price E, Vandermeer MRJ, Bird R, Carr J, Anderson KK, Norman RMG. (2020) Reactions to mindfulness intervention in an early psychosis program: Qualitative findings from a pilot study. Journal of Recovery in Mental Health, 3(1), 4-22.
  • *Puka K, Goodwin SW, Ferro MA, Smith M, Widjaja E, Anderson KK, Speechley KN. (2020) Validation of the Quality of Life in Childhood Epilepsy Questionnaire (QOLCE-55 and QOLCE-16) for use by parents of young adults with childhood-onset epilepsy. Epilepsy & Behaviour, 104(A), 106904.
  • Wiley ER, Seabrook JA, Gilliland JA, Anderson KK, Stranges S. (2020) Green space and substance use and addiction: A new frontier. Addictive Behaviors, 100(1), 106155.
  • John-Baptiste A, Osuch E, Isaranuwatchai W, Li L, Anderson KK. (2019) Healthcare utilization costs of emerging adults with mood and anxiety disorders in an early intervention treatment program compared to a matched cohort. Early Intervention in Psychiatry, 13(6), 1439-1446.
  • Edwards J, Rodrigues R, Anderson KK. (2019) Framing the incidence of psychotic disorders: The case for context. Psychological Medicine, 49(15), 2637-2638.
  • *Rodrigues R, MacDougall AG, Zou G, Lebenbaum M, Kurdyak P, Anderson KK. (2019) Risk of involuntary admission among first-generation ethnic minority groups with early psychosis: A retrospective cohort study using health administrative data. Epidemiology and Psychiatric Sciences, 29(e59), 1-8.
  • *Schoer N, *Huang CW, Anderson KK. (2019) Differences in duration of untreated psychosis for racial and ethnic minority groups with first-episode psychosis: An updated systematic review & meta-analysis. Social Psychiatry and Psychiatric Epidemiology, 54(10), 1295-1298.
  • *Edwards J, *Hu M, Thind A, Stranges S, Chiu M, Anderson KK. (2019) Gaps in understanding of the epidemiology of mood and anxiety disorders among migrant groups in Canada: A systematic review. Canadian Journal of Psychiatry, 64(9), 595-606.
  • Anderson KK, Norman R, MacDougall AG, *Edwards J, Palaniyappan L, Lau C, Kurdyak P. (2019) Estimating the incidence of first-episode psychosis using population-based health administrative data to inform early psychosis intervention services. Psychological Medicine, 49(12), 2091-2099.
  • Ndetei DM, Mutiso V, Maraj A, Anderson KK, Musyimi C, Musau A, Tele A, Gitonga I, McKenzie K. (2019) Towards understanding the relationship between psychosocial factors and ego resilience among primary school children in a Kenyan setting: A pilot feasibility study. Community Mental Health Journal, 55(6), 1038-1046.
  • MacDougall AG, Price E, Vandermeer MRJ, Lloyd C, Bird R, Sethi R, Shanmugalingam A, Carr J, Anderson KK, Norman RMG. (2019) Youth-focused group mindfulness-based intervention in individuals with early psychosis: A randomized pilot feasibility study. Early Intervention in Psychiatry, 13(4), 993-998.
  • Anderson KK, John-Baptiste A, MacDougall AG, Li L, Kurdyak P, Osuch EA. (2019) Access and health system impact of an early intervention treatment program for emerging adults with mood and anxiety disorders. Canadian Journal of Psychiatry, 64(7), 492-500.
  • *Rodrigues R, MacDougall AG, Zou G, Lebenbaum M, Kurdyak P, Anderson KK. (2019) Involuntary hospitalization among young people with early psychosis: A population-based study using health administrative data. Schizophrenia Research, 208, 276-284.
  • Anderson KK. (2019) Towards a public health approach to psychotic disorders. Lancet Public Health, 4(5), E212-E213.
  • Edwards J, Anderson KK, Stranges S. (2019) Migrant mental health, Hickam’s dictum, and the dangers of oversimplification. International Journal of Public Health, 64(4), 477-478.
  • *Edwards J, Norman R, Kurdyak P, MacDougall A, Palaniyappan L, Lau C, Anderson KK. (2019) Unmet need for mental health services among people screened but not admitted to an early psychosis intervention program. Schizophrenia Research, 204, 55-57.
  • *Puka K, Ferro MA, Anderson KK, Speechley K. (2019) Prevalence and trajectories of depressive symptoms among mothers of children with newly diagnosed epilepsy: A longitudinal 10-year study. Epilepsia, 60(2), 358-366.