Dr. Nancy Carnide
Dr. Nancy Carnide is a scientist at the Institute for Work & Health. She is also an assistant professor in the Division of Epidemiology at the University of Toronto's Dalla Lana School of Public Health.
She has a PhD in epidemiology from the Dalla Lana School of Public Health at the University of Toronto. During her PhD, she was the recipient of a Canadian Institutes of Health Research (CIHR) Vanier Canada Graduate Scholarship and a CIHR Strategic Training Fellowship in Work Disability Prevention. Carnide was previously a post-doctoral fellow at the Institute.
Carnide conducts research at the intersection between occupational health and safety and substance use. Her research projects have involved analysis of survey and administrative data, as well as systematic reviews. Her program of research includes examining the use and non-medical use of prescription and recreational drugs among workers, their risk factors and the workplace consequences of their use, with a focus on cannabis and opioids.

“The gaps in knowledge around the scope, determinants and effects of substance use among workers are vast. Given the current opioid crisis and the move towards cannabis legalization in multiple jurisdictions, including Canada, I cannot think of a more timely area for research in occupational health and safety.” – Dr. Nancy Carnide
Projects
- Opioid-related harms among Ontario workers: a surveillance tool. Funded by Public Health Agency of Canada. Ongoing. (PI on the project)
- Project ECHO Occupational and Environmental Medicine (OEM): Implementation, evaluation and a pilot study of a new clinical tool. Funded by Workplace Safety and Insurance Board. Ongoing.
- Toking 9 to 5: Workplace cannabis use and perceptions among Canadian workers. Funded by Canadian Institutes of Health Research. Ongoing. (PI on the project)
- What are the long-term health and labour market outcomes of workers who experienced work-related COVID-19 transmission?. Funded by Canadian Institutes of Health Research (CIHR). Ongoing.
- Central nervous system agents and the risk of workplace injury and death: a systematic review. Funded by WorkSafeBC. Completed. (PI on the project)
Publications
- Carnide N, Nadalin V, Mustard C, Severin C, Furlan AD, Smith PM. Cannabis use among workers with work-related injuries and illnesses: results from a cross-sectional study of workers' compensation claimants in Ontario, Canada. BMJ Open. 2023;13(7):e072994. doi:10.1136/bmjopen-2023-072994.
- Carnide N, Landsman V, Lee H, Frone MR, Furlan AD, Smith PM. Workplace and non-workplace cannabis use and the risk of workplace injury: findings from a longitudinal study of Canadian workers. Canadian Journal of Public Health. 2023;114(6):947-955. doi:10.17269/s41997-023-00795-0.
- Jetha A, Navaratnerajah L, Shahidi FV, Carnide N, Biswas A, Yanar B, Siddiqi A. Racial and ethnic inequities in the return-to-work of workers experiencing injury or illness: a systematic review. Journal of Occupational Rehabilitation. 2023;33(3):432-449. doi:10.1007/s10926-023-10119-1.
- Dobson KG , Mustard C, Carnide N, Furlan AD, Smith PM. Association of persistent pain with the incidence of chronic conditions following a disabling work-related injury. Scandinavian Journal of Work, Environment & Health. 2023;49(5):330-340. doi:10.5271/sjweh.4096.
- Dobson KG , Mustard C, Carnide N, Furlan AD, Smith PM. Impact of persistent pain symptoms on work absence, health status and employment 18 months following disabling work-related injury or illness. Occupational and Environmental Medicine. 2022;79(10):697-705. doi:10.1136/oemed-2022-108383.
Speaker Series presentations
- Cannabis use and perceptions among Canadian workers after legalization . IWH Speaker Series. May 14, 2024.
- Occupational patterns in opioid-related harms among Ontario workers . IWH Speaker Series. June 13, 2023.
- Cannabis use and the risk of workplace injury: Findings from a longitudinal study of Canadian workers. IWH Speaker Series. March 8, 2022.
- Have cannabis use and perceptions about workplace use changed since legalization?. IWH Speaker Series. March 3, 2020.
- The link between workplace injury and fatality risks and the use of substances affecting the central nervous system. IWH Speaker Series. May 28, 2019.
Interviews and articles
- Depressive symptoms common in first 12 months after work injury. At Work: Institute for Work & Health; No. 83, Winter 2016.
- Feelings of depression after a physical work injury. Visions: B.C. Partners for Mental Health and Addictions Information (Vancouver, BC). January 1, 2016. Available from: http://www.heretohelp.bc.ca/visions/workplace-transitions-vol11/feelings-of-depression-after-a-work-injury
- Mental health and injured workers: Depressive symptoms linked to delayed work-returns. At Work: Institute for Work & Health; No. 56, Spring 2009.