Workers' compensation and benefits policy
Workers' compensation is a form of insurance providing wage replacement and medical benefits to workers injured in the course of their employment. Eligibility for, and awarding of, benefits to injured workers are determined by workers’ compensation boards, which are funded through employer premiums. IWH research explores trends in compensation benefits, including benefit adequacy and equity, as well as the effects of compensation policy design on injury and illness prevention.
Featured

Research Highlights
Severe pain, not pressure to return to work or lack of accommodation offer, linked to opioid use post-injury
An IWH study found that among a group of injured workers in Ontario, those who experienced severe pain were more likely to use opioids than those who had no or only mild pain.
Published: February 12, 2025

Research Highlights
Workers are using cannabis to treat work-related conditions, mostly without medical guidance
While cannabis is often used recreationally, there is growing interest in its use for therapeutic purposes, such as for pain, anxiety, depression and sleep problems. Some workers are using cannabis many months following the onset of a work-related condition, mostly without medical guidance.
Published: October 5, 2023
Project report
Project report
Role of health-care providers in the workers' compensation system and the return-to-work process: final report
Health-care providers play an important role in the return to work of injured workers, yet research suggests they sometimes struggle with this responsibility. This report shares the findings of a study on health-care providers' experiences in return to work and in working with workers' compensation systems. It also suggests practices and policies that may help clarify the role of health-care providers and make workers’ compensation systems easier to navigate for all stakeholders.
Published: December 2016
Project report
Project report
Role of health-care providers in the workers' compensation system and the return-to-work process: executive summary
Health-care providers play an important role in the return to work of injured workers, yet research suggests they sometimes struggle with this responsibility. This executive summary provides an overview of the findings of a study on health-care providers' experiences in return to work and in working with workers' compensation systems.
Published: December 2016

Impact case study
WSIB integrates prognostic information in improved return-to-work case management services
Four factors that predict how long injured workers will remain off work are incorporated into new case management model at Ontario's Workplace Safety and Insurance Board.
Published: December 2016

At Work article
Experience rating design differences lead to different outcomes in Ontario and B.C.
Ontario sees larger reductions in injury claims, but B.C.’s reductions are more enduring.
Published: November 2016
IWH Speaker Series
IWH Speaker Series
What are physicians told about their role in return to work?
Physicians have an important role in the return to work (RTW) process, but research shows that they sometimes struggle to manage RTW consultations and help patients return to work after an injury. As part of a broader exploration into the role played by doctors in RTW, an IWH team led by Dr. Agnieszka Kosny sought to examine resources, policies and guidelines that have been developed for physicians by workers’ compensation boards, governments and other organizations across Canada. In this plenary, Kosny highlights resource gaps that may hinder physicians’ understanding of their roles and responsibilities in the workers' compensation system and RTW process, and which may ultimately delay workers’ RTW after injury.
Published: November 2016

IWH in the media
Study looks at relationship between employers and doctors in return to work
A key element of a successful return to work is a good, communicative relationship among the injured worker, the employer and the worker’s doctors. But a study found the relationship between employers and doctors can be marred by mistrust and lack of communication.
Published: OHS Insider, April 2016

Issue Briefing
Measuring the adequacy of workers’ compensation benefits in Ontario: An update
In 2011, an IWH Issue Briefing summed up research on the adequacy of earnings replacement benefits for injured workers with permanent impairments in Ontario and B.C. This update looks at more recent cohorts, after major changes in Ontario’s workers’ compensation legislation.
Published: March 2016

At Work article
Employers and doctors often have uneasy relationship in return to work, study finds
Interviews with Australian employers highlight problems with physicians over communication, trust.
Published: February 2016

At Work article
Research key to finding way forward during WSIB reform: Nachemson speaker
Judy Geary, a former Workplace Safety and Insurance Board executive, reflects on the value of research in policy-making at IWH's annual lecture.
Published: November 2015

At Work article
Workers’ comp benefits keep poverty low among permanently impaired workers and their families, study by IWH finds
Ambitious study of earnings of injured and non-injured workers over 10 years finds benefits play important role in reducing poverty among permanently impaired
Published: August 2015