The CompScope™ series of reports 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 2014 and 2019 (evaluated as of March 31, 2020). In some cases, we used 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 included findings from other recent Workers Compensation Research Institute (WCRI) studies to provide a more comprehensive picture of the Illinois workers’ compensation system.

Note that the results we report include experience on claims through March 2020, at the very beginning of the coronavirus (COVID-19) pandemic. The study, therefore, provides a pre-COVID-19 baseline for evaluating the impact of the virus on workers’ compensation claims.

CompScope™ Benchmarks for Illinois, 21st Edition. Evelina Radeva. April 2021. WC-21-05.