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's primary program of research involves examining issues at the intersection between occupational health and safety and substance use, including examining the use and non-medical use of prescription and recreational drugs among workers, their risk factors and the workplace impacts of their use. Her research projects have involved analysis of survey and administrative data, qualitative approaches, as well as systematic reviews.
“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
- Ontario Life After Work Injury Study: Understanding the long-term recovery and labour market outcomes of injured workers in the shadow of COVID-19. Funded by Workplace Safety and Insurance Board. Completed.
- Opioid-related harms among Ontario workers: a surveillance tool. Funded by Public Health Agency of Canada. Completed. (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. Completed.
Publications
- Andreacchi AT, Carnide N, Fuller A, Blair A, Siddiqi A, Shahidi FV. Socioeconomic inequities in drug poisoning deaths in Canada. Canadian Journal of Public Health. 2026; [epub ahead of print].. 2026 epub ahead of print. doi:10.17269/s41997-026-01166-1.
- Landsman V, Wang L, Carrillo-Garcia I, Mitani AA, Smith PM, Graubard BI, Bui T, Carnide N. Correction for participation bias in nonprobability samples using multiple reference surveys. Statistics in Medicine. 2026;45(3):e70403. doi:10.1002/sim.70403.
- Dobson KG , Chien YC, Carnide N, Smith PM, Mustard C. Comparing profiles of mental illness and positive mental health between injured workers and the general working population in Ontario. American Journal of Industrial Medicine. 2026;69(4):283-293. doi:10.1002/ajim.70061.
- Nowrouzi-Kia B, Carlin L, Furlan AD, Harbin S, Severin CN, Irvin E, Carnide N, Thompson A, Adisesh A. Project ECHO Occupational and Environmental Medicine: a qualitative study of healthcare providers supporting workers with work-related injuries and illnesses. Journal of Occupational Rehabilitation. 2026;36(1):290-302. doi:10.1007/s10926-024-10266-z.
- Shahidi FV, Andreacchi AT, Fuller AE, Blair A, Carnide N, Harris MA, Pabayo R, Smith B, Siddiqi A, Smith PM. Employment quality and mortality in Canada. Journal of Epidemiology & Community Health. 2025;80(1):27-34. doi:10.1136/jech-2025-224434.
Speaker Series presentations
- Using cannabis to manage symptoms of work-related injuries: Experiences of injured workers in Ontario. IWH Speaker Series. February 24, 2026.
- 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.
Research summaries
- Depressive symptoms common in first 12 months after work injury. At Work article: Institute for Work & Health, February 2016.
- Mental health and injured workers: Depressive symptoms linked to delayed work-returns. At Work article: Institute for Work & Health, April 2009.
Media coverage
- Shining a light on opioid epidemic's link to the workplace. Canadian Occupational Safety. December 18, 2023. Available from: https://www.thesafetymag.com/ca/topics/safety-and-ppe/shining-a-light-on-opioid-epidemics-link-to-the-workplace/470527
- Injured workers are using cannabis to self-medicate, study shows. Safety + Health. October 16, 2023. Available from: https://www.safetyandhealthmagazine.com/articles/24598-injured-workers-are-using-cannabis-to-self-medicate-study-shows
- Cannabis use during work raises workplace injury odds, research shows. Benefits and Pensions Monitor. August 1, 2023. Available from: https://www.benefitsandpensionsmonitor.com/benefits/chronic-illness-disabilities/cannabis-use-during-work-raises-workplace-injury-odds-research-shows/378385
- Analysis: One in seven use cannabis to recover from work-related injuries. NORML. July 21, 2023.
- Workers in construction, mining most impacted by opioid-related harm: research. NWOnewswatch: Dougall Media (Thunder Bay, ON). July 2, 2023. Available from: https://www.nwonewswatch.com/local-news/workers-in-construction-mining-most-impacted-by-opioid-related-harm-research-7226839