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.

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IWH Speaker Series

New business owners on why and how OHS starts to matter

Published: October 27, 2026
An overhead view of an ambulance driving at night.
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
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At Work article

IWH study examines effect of Ontario’s mandatory OHS training on awareness

On July 1, 2014, a new occupational health and safety requirement took effect in Ontario. An IWH research team conducted a study on differences in OHS awareness before and after the requirement took effect. Read about the findings.
Published: November 2017
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IWH in the media

Workers with disabilities report greater OHS vulnerability

According to a new study by the Institute for Work and Health (IWH), workers who identify as having a disability are more likely to be exposed to workplace hazards. Additionally, they are more likely to face inadequate occupational health and safety (OHS) protections. “Basically, they get hit with a double whammy,” said Dr. Curtis Breslin, lead author of the study.
Published: Canadian Occupational Safety, November 2017
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IWH in the media

Recent immigrants, refugees largely unaware of OHS: Researchers

When immigrants and refugees come to Canada, they are handed a 140-page document that contains only one small paragraph about employee rights. Unfortunately, this might be the only OHS exposure these workers receive, writes Amanda Silliker, reporting on an Institute for Work & Health research project.
Published: Canadian Occupational Safety, November 2017
An elderly patient lying in bed
At Work article

Study update: New cases of mesothelioma and asbestos-related lung cancer from one year cost $2.35B

What's the economic burden of mesothelioma and lung cancers due to work-related asbestos? An IWH team calculated the costs from just one year's worth of such cases.
Published: November 2017
A woman with disability works in a bakery
At Work article

Workers with disabilities report greater hazard exposure and lower protection

Research elsewhere has shown that people with disabilities have a tough time getting hired. A new study at IWH now suggests we should also worry about those who do find jobs. Learn why.
Published: November 2017
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IWH in the media

Injury and wellness: what are employers spending on prevention?

What workplace injuries and illnesses cost in Ontario is evident, but what do Ontario employers spend on prevention? That’s a question the Institute for Work and Health (IWH) is attempting to answer with a pilot study that’s underway. Dr. Cameron Mustard shared some of the early results.
Published: Plant, August 2017
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Trouvez les travailleurs à protéger

La vulnérabilité en santé et en sécurité au travail ne dépend pas de qui vous êtes. Elle dépend des fonctions que vous accomplissez. Nos recherches montrent qu’il existe une meilleure façon de repérer les travailleurs vulnérables.
Published: August 2017
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Find the workers you need to protect

How do you tell which workers are vulnerable to injury? Occupational health and safety (OHS) vulnerability is not about who people are. It's about the work they do. Use the OHS Vulnerability Measure to identify workers you need to protect.
Published: August 2017
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IWH in the media

Weed at work

The legalization of recreational marijuana in Canada came closer to reality on April 13, when the Justin Trudeau government introduced the Cannabis Act, or Bill C-45. While pot users across the country applaud the move, others have raised concerns about the effect that the proposed legislation would have on workplace safety, writes Jeff Cottrill in an article that quotes the Institute for Work & Health's Dr. Andrea Furlan.
Published: OHS Canada, August 2017
A man stands in shadow with head down
At Work article

Therapy can help manage depression, but in Manitoba, access to therapists is a concern

Therapy can help manage depression, according to a new systematic review update. How easy is this recommendation to implement in a province like Manitoba?
Published: August 2017