The report for Illinois provides ongoing annual monitoring of how indemnity benefits, medical payments, and benefit delivery expenses per claim change over time, as well as how the Illinois workers’ compensation system compares with other study states on these key metrics. This edition analyzes claims with injury dates between 2017 and 2022 (evaluated as of March 31, 2023). In some cases, we use a longer time frame to supply historical context for key metrics and to provide a broader context for monitoring changes in Illinois’ system performance. Where relevant, we include findings from other recent WCRI studies to provide a more comprehensive picture of the Illinois workers’ compensation system.

Note that the results we report reflect experience on claims through March 2023, including non-COVID-19 claims from the three years since the COVID-19 pandemic began (March 2020 through September 2022). The study, therefore, provides a look at how the pandemic impacted non-COVID-19 workers’ compensation claims in the first three years of the pandemic.

CompScope™ Benchmarks for Illinois, 24th Edition. Evelina Radeva. April 2024. WC-24-03.