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
A group of construction workers
Impact case study

Saskatchewan’s construction safety group uses IWH tool to improve safety culture

This case study details how the Saskatchewan Construction Safety Association (SCSA) members have been analyzing IWH-OPM scores to adjust their safety practices and how SCSA has been using the data to tailor their outreach.
Published: February 10, 2025
Research Highlights
Research Highlights

Worker participation in ergonomic programs has benefits

A participatory ergonomic approach can improve risk factors related to musculoskeletal disorders, and meaningful worker participation in the process is an important aspect for the success of this approach.
Published: January 2006
Systematic Review
Systematic Review

Occupational health and safety management audit instruments: a literature review

The use of occupational health and safety (OHS) audits has grown in recent years, and is now seen as an effective method for ensuring compliance and improving the performance of prevention systems. IWH carried out a narrative literature review in order to determine what is known about the reliability and validity of these audit instruments, as outlined in this report.
Published: December 2005
Systematic Review
Systematic Review

Systematic review of risk factors for injury among youth

Studies have found that young workers are more likely than older workers to sustain work injuries and, as a result, significant resources have been spent on young worker safety programs. However, these programs were developed without a comprehensive look at the factors that lead young workers to get injured. IWH undertook a systematic review, detailed in this report, to determine what factors are associated with work injury and illness among young workers.
Published: December 2005
Two workers in a warehouse consult document
Sharing Best Evidence

Effectiveness of participatory ergonomics: summary of a systematic review

By improving the ergonomics of work and workplaces, it should be possible to prevent or reduce musculoskeletal disorders (MSDs) and increase productivity. This systematic review summarizes the evidence on the effectiveness of workplace-based participatory ergonomics interventions in improving workers' health.
Published: February 2005
A factory worker fills out form
Sharing Best Evidence

Effectiveness of OHS management systems: summary of a systematic review

Occupational health and safety management systems (OHSMSs) have developed considerably over the last 20 years, yet little is known about their effectiveness. The systematic review aimed to provide the evidence on the the effectiveness of mandatory and voluntary OHSMSs and identify facilitators and barriers to their adoption and implementation.
Published: February 2005
Systematic Review
Systematic Review

Effectiveness of occupational health and safety management systems: a systematic review

Occupational health and safety management systems (OHSMSs) have developed considerably over the last 20 years, yet little is known about their effectiveness. This report summarizes the findings of a systematic review on the facilitators and barriers to the adoption and effectiveness of OHSMSs.
Published: January 2005
Systematic Review
Systematic Review

Effectiveness of participatory ergonomic interventions: a systematic review

The inappropriate design of workplaces and work processes contributes significantly to the development of common work-related musculoskeletal disorders (MSDs). By improving ergonomic aspects of work and workplaces, it should be possible to prevent or reduce these disorders and increase productivity. One practice advocated for improving workplace design and processes is participatory ergonomics. This report shares the findings of a systematic review on the effectiveness of workplace-based participatory ergonomic interventions in improving workers' health.
Published: January 2005
Close-up of spinal coil on a handbook
Tools and guides

Guide to evaluating the effectiveness of strategies for preventing work injuries

This comprehensive guide lays out the methods behind rigorous effectiveness evaluations of workplace safety interventions—from determining the appropriate design and deciding who should be in your study sample, to measuring outcomes and going beyond quantitative methods. 
Published: January 2001