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

Graphic of workers in front of a conveyor belt wearing safety gear, a robot holds a clipboard.
At Work article

Differences in firm-level AI use for health and safety

To what extent are Canadian workplaces using artificial intelligence (AI) to help support workers’ health and safety? And what do these workplaces have in common? An IWH study surveyed firms across Ontario and British Columbia to find out.
Published: October 8, 2025
Project
Project

Understanding how new businesses start managing OHS: laying the groundwork for future interventions

About 100,000 new businesses with one or more employees are created each year in Canada. Almost all start out as small businesses, which have been shown to carry high risks of injuries and fatalities. This study sets out to understand how occupational health and safety management is initiated by new businesses. Its aim is to fill in a research gap and help the prevention system in Ontario reach and support new businesses early in their lifecycle.
Status: Ongoing
Project
Project

Implementation of a comprehensive accommodation and reintegration program in a police service

This study sets out to evaluate the implementation of an accommodation and reintegration program at a major urban police service. The goal is to improve program access and participation and, ultimately, the well-being of police officers.
Status: Ongoing
Journal article
Journal article
Journal article

Trends in severity of work-related traumatic injury and musculoskeletal disorder, Ontario 2004-2017

Published: American Journal of Industrial Medicine, May 2024
A New Zealand construction worker holding papers looking off-camera with a city skyline behind
Impact case study

Construction safety org adapts IWH research messages for tradesworker audience

A key program from Construction Health and Safety New Zealand—developed using IWH research—takes a participatory ergonomics approach to better prevent and manage musculoskeletal injuries among construction workers.
Published: February 2024
IWH Speaker Series
IWH Speaker Series

Is precarious employment an occupational hazard?

Precarious employment has become more common in the Canadian labour market, as well as in the labour markets of other high-income countries. In this presentation, Dr. Faraz Vahid Shahidi examines the consequences of precarious employment for health and safety at work. Drawing on compensation claims data from the Workplace Safety and Insurance Board and labour force estimates from Statistics Canada, Dr. Shahidi asks whether workers exposed to precarious employment – such as temporary, part-time, and low-wage jobs – are more likely to experience an occupational injury or illness. As a further source of evidence, he also assesses the impact of precarious employment on the workplace transmission of COVID-19.
Published: February 2024
Two workers wearing masks look at a tablet together
At Work article

What can work-related COVID-19 cases tell us about how to prepare for the next pandemic?

To what extent did workplace exposures account for the transmission of the COVID-19 virus during the first two years of the pandemic? A new study by IWH combined data sources to estimate work-related infection rates, using a method that took into account major shifts in where people worked. It found the role of work exposure changed from wave to wave, in a dynamic pattern not in keeping with the number of cases in the general population.
Published: February 2024
Journal article
Journal article

Variation in occupational exposure risk for COVID-19 workers' compensation claims across pandemic waves in Ontario

Published: Occupational & Environmental Medicine, February 2024
IWH Speaker Series
IWH Speaker Series

Refining estimates of occupational exposures and risk of workplace COVID-19 transmission

The COVID-19 pandemic shone a light on the importance of having accurate data on workplace exposure to infectious diseases. Efforts to estimate infection rates of COVID-19 during the public health emergency were hampered by inadequate information on key factors, such as whether an infected worker had worked from home or interacted with the public. In this presentation, Dr. Peter Smith shares results from a study that examined the risk of work-related COVID-19 infections. He discusses methods used by the team to combine data sources to take into account changes in labour market participation—including working from home—during different phases of the COVID-19 pandemic.
Published: January 2024