Mental health and addictions

Read our publications related to this topic.

Journal Articles

16/07/2025

Contact with health services for adverse childhood experiences and subsequent risk of non-affective psychotic disorder: population-based evidence from Ontario, Canada

Salama R, Rodrigues R, Comeau J, Choi YH, Rotenberg M, Edwards J, Le B, Anderson KK. Schizophr Res. 2025; 283:115-121. Epub 2025 Jul 16.

Journal Article

10/07/2025

Assessing the impact of the introduction of generic methadone to the Ontario public drug formulary

Hamzat B, Wang T, Garg R, Iacono A, Tadrous M, Wu F, Wyman J, Dodd Z, Pinkerton S, Smoke A, Gomes T. Int J Drug Policy. 2025; 143:104918. Epub 2025 Jul 10.

Journal Article

07/07/2025

Early psychosis symptoms noted by family physicians in electronic medical records during help-seeking visits in primary care

Wiener JC, Rodrigues R, Reid JNS, Archie S, Jan SH, MacDougall AG, Palaniyappan L, Jaakkimainen L, Chen B, Sawh N, Anderson KK; project co-investigators. Can J Psychiatry. 2025 Jul 7 [Epub ahead of print].

Journal Article

02/07/2025

Group B Streptococcus disease during infancy and risk of subsequent neurodevelopmental impairments in young children: a population-based cohort study in Ontario, Canada

Fakhraei R, Fell DB, El-Chaar D, Thampi N, Sander B, Brown KA, Crowcroft N, Bolotin S, Barrett J, Darling EK, Fittipaldi N, Lamagni T, McGeer A, Murti M, Sadarangani M, Schwartz KL, Yasseen A, Tunis M, Petrcich W, Wilson K. Lancet Reg Health Am. 2025; 48: 101170.

Journal Article

01/07/2025

Duration of methadone and buprenorphine-naloxone treatment

Kleinman RA, Kurdyak P. JAMA Netw Open. 2025; 8(7):e2518389.

Journal Article

30/06/2025

Retention in opioid agonist therapy among First Nations people in Ontario, Canada: a retrospective cohort study

Holton A, Hamzat B, McCormack D, Bragg S, deGonzague B, Mecredy G, Campbell T, Antoniou T, McGregor L, Bertram J, Gomes T. JAMA Netw Open. 2025; 8(6):e2518452.

Journal Article

28/06/2025

Changing trends in safer opioid supply uptake, dose and hydromorphone volume in Ontario: a population-based cross-sectional study

Xu F, Wang T, Kolla G, Campbell T, Watts T, Ledlie S, Koncz D, Tadrous M, Gomes T. Int J Drug Policy. 2025; 143:104905. Epub 2025 Jun 28.

Journal Article

13/06/2025

Health care use, care settings, and location of death for people with schizophrenia in long-term care

Dover K, Fiedorowicz JG, Kirkwood D, Solmi M, Bolton JM, Isenberg SR, Li W, Mahar A, Bush SH, Bonares M, Edwards JD, Hatcher S, Dosani N, Lawlor P, Chochinov HM, Kurdyak P, Wellman M, Franck C, Rochon A, Tanuseputro P, Webber C. J Am Med Dir Assoc. 2025; Jun 13 [Epub ahead of print].

Journal Article

12/06/2025

Overall and substance use-specific healthcare utilization among individuals with and without criminal justice involvement in Ontario, Canada

Russell C, Yakubovich A, O’Campo P, Qu K, Plumptre L, Kouyoumdjian F, Matheson FI. Int J Prison Health. 2025; Jun 13 [Epub ahead of print].

Journal Article

12/06/2025

Comparative analysis of methods for identifying multimorbidity patterns among people with opioid use disorder: a retrospective single-cohort study

Rodrigues M, Rosic T, Babe G, Dennis BB, McEvoy A, Perez R, de Oliveira C, Parpia S, Samaan Z, Thabane L. PLoS One. 2025; 20(6):e0324548.

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News Releases

News Release

12/06/2025

Correctional populations in Ontario have twenty times the rate of substance use-related healthcare visits, study finds

News Release

22/04/2025

Safer opioid supply improves health outcomes among people at high risk of overdose

A new study in The Lancet Public Health finds that safer supply programs complement existing treatment options.

News Release

14/04/2025

17/09/2024

Abnormal electrolyte levels in people with eating disorders may increase risk of death, poor health outcomes

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Research Programs and appointed ICES Scientists

ICES scientists are appointed to the ICES Research Program which best fits their interests and, as such, become members of a network of health services researchers from across Ontario.

ICES Scientists Research Programs

Mental health and addictions

Journal Articles

Contact with health services for adverse childhood experiences and subsequent risk of non-affective psychotic disorder: population-based evidence from Ontario, Canada

Assessing the impact of the introduction of generic methadone to the Ontario public drug formulary

Early psychosis symptoms noted by family physicians in electronic medical records during help-seeking visits in primary care

Group B Streptococcus disease during infancy and risk of subsequent neurodevelopmental impairments in young children: a population-based cohort study in Ontario, Canada

Duration of methadone and buprenorphine-naloxone treatment

Retention in opioid agonist therapy among First Nations people in Ontario, Canada: a retrospective cohort study

Changing trends in safer opioid supply uptake, dose and hydromorphone volume in Ontario: a population-based cross-sectional study

Health care use, care settings, and location of death for people with schizophrenia in long-term care

Overall and substance use-specific healthcare utilization among individuals with and without criminal justice involvement in Ontario, Canada

Comparative analysis of methods for identifying multimorbidity patterns among people with opioid use disorder: a retrospective single-cohort study

News Releases

Correctional populations in Ontario have twenty times the rate of substance use-related healthcare visits, study finds

Safer opioid supply improves health outcomes among people at high risk of overdose

Hospital visits for cannabis use linked to higher dementia risk, study finds

Transgender and gender diverse people less likely to receive follow-up after a mental health hospitalization

Contribution of cannabis use disorder to new cases of schizophrenia has almost tripled over the past 17 years

Multiple sclerosis linked to higher risk of mental illness during and after pregnancy

Accidental drug and alcohol-related deaths rising in Ontario, especially those involving multiple substances: report

Psychedelic use linked to increased risk of schizophrenia, study finds

History of concussion linked to higher risk of severe mental illness after childbirth

Abnormal electrolyte levels in people with eating disorders may increase risk of death, poor health outcomes

Research Programs and appointed ICES Scientists