CWCI Finds CT Claims’ Share of California Workers’ Comp Nearly Doubled from 2018-2025
The share of California’s workers’ compensation claims identified as cumulative traumas (CT) nearly doubled between 2018 and 2025, with the sharpest growth occurring after 2021, according to a new California Workers’ Compensation Institute (CWCI) study. The study found that the increase was widespread, extending beyond regions and industries that historically accounted for the largest share of CT claims, but traditional factors such as population and employment growth, overall claim volume and changes in worker tenure explain relatively little of the increase, raising questions about what is driving the continued growth of CT claims.
Opioid Use in California Workers’ Comp Declines Faster than in the State’s General Population
The decline in opioid use in California workers’ compensation has outpaced the decline among the state’s overall population according to a new California Workers’ Compensation Institute (CWCI) analysis of 2017-2023 opioid prescription data from the California Department of Justice’s Controlled Substance Utilization Review and Evaluation System (CURES) database.
