Illness/injury prevention
IWH has a long history of conducting research to provide practical guidance to employers, workers, OHS professionals and regulators about what works and what doesn’t in injury or illness prevention. This research targets the injury and illness prevention practices of workplaces, as well as the programs developed by governments, health and safety associations and others to support and motivate workplaces to adopt effective practices.
Featured

IWH Speaker Series
New business owners on why and how OHS starts to matter
Published: October 27, 2026
Research Highlights
Rises in opioid harms highest in machining, construction, sales
A new study has found that opioid harm rates have increased among injured workers over the last two decades. The study also breaks the trends down by occupation.
Published: October 14, 2026
IWH Speaker Series
IWH Speaker Series
New business owners on why and how OHS starts to matter
New businesses make a substantial contribution to the economy, with roughly 100,000 created a year in Canada. New businesses and their owners are expected to begin managing occupational health and safety (OHS) by the time they hire their first employee. But against the many demands for their attention, when, why and how does OHS begin to matter to new business owners? In this presentation, a companion piece to a presentation from last year based on survey findings, Dr. Basak Yanar shares insights from interviews with new business owners on how they begin managing OHS and what supports they need.
Published: October 2026
Research Highlights
Rises in opioid harms highest in machining, construction, sales
A new study has found that opioid harm rates have increased among injured workers over the last two decades. The study breaks the trends down by occupation, and high-hazard roles saw the biggest increases. However, some typically low-hazard occupations, like clerical and sales jobs, also saw large increases in harms.
Published: October 2026
Journal article
Journal article
Trends in opioid-related poisonings and mental and behavioral disorders from 2006 to 2022 among a large cohort of injured workers in Ontario, Canada
Published: American Journal of Industrial Medicine, September 2026
IWH in the media
IWH in the media
Small business study: Focusing on safety right away can help limit injuries
Small businesses that implement worker safety strategies and resources early in their operations can significantly reduce injuries and their associated costs. Research from the Institute for Work and Health reviewed existing studies and interviewed 11 individuals to reach this conclusion..
Published: Future Foreman, August 2026
Journal article
Journal article
Examining the psychometric properties of the occupational stress injury resiliency tool with comparison of concurrent, and predictive validity with other leading indicators of work-related psychological conditions
Published: Annals of Work Exposures and Health, August 2026
Research Highlights
Workers with COVID-19 had better return-to-work rates than others during the pandemic
During the pandemic, workers who contracted COVID-19 from work had better return-to-work rates 18 months later than those with other conditions. Most traditional return-to-work factors, however, did not explain the difference in rates.
Published: July 2026
IWH in the media
Summer’s here: What kids, and their parents, should know about safety on the job
The “Keep Your Bits” videos that are part of the Workplace Safety and Insurance Board’s latest campaign to promote workplace safety among young adults are meant to be funny — not because the content is light, but to get the attention of young people, says the WSIB. As business reporter Patty Winsa writes, job safety is especially important for young and new workers, who are three times more likely to be injured within their first month of employment compared to experienced workers, according to the Institute for Work and Health.
Published: The Toronto Star, July 2026
Journal article
Journal article
Multidimensional social exposure clusters and incident multimorbidity in a population-based cohort
Published: American Journal of Epidemiology, July 2026
Journal article
Journal article
Interaction in OHS research knowledge transfer: a rapid review
Published: Safety Science, June 2026
Journal article
Journal article
Are there differences in return-to-work experiences for workers who acquired COVID-19 at work compared to workers who sustained a non-COVID-19 work-related injury or illness?
Published: Journal of Occupational Rehabilitation, June 2026