Research

The first of a 3-part research series on workers' compensation medications that represent a relatively small share of the dispensed prescriptions within their therapeutic drug group, but due to their high average reimbursements, account for a disproportionate share of the total drug spend within their group. Part I of the series focuses on Anti-Inflammatories and Anticonvulsants.

CWCI research tracks changes in the prevalence and volume of professional medical services in the first 2 years of treatment for indemnity claims in which medical care began between 2014 and 2019. To examine the impact of the pandemic, the authors compare the prevalence and volume of services in the first 6 months of treatment for claims in which treatment began in 2018 and 2019 claims in which treatment began in 2020 and 2021. In both cases, results are broken out for claims with and without surgery.

A Research Update report that continues CWCIs series of studies examining inpatient utilization trends using data compiled by the California Department of Health Care Access and Information. The analysis compares the volume and types of inpatient hospitalizations covered by workers compensation to those covered by Medicare, Medi-Cal, and private coverage.

In both 2021 and 2022, California legislators have debated proposals that would shorten the compensability determination timeline for California workers compensation claims. This CWCI Impact Analysis report helps bring the debate into focus by providing background information on the compensability determination process for litigated and non-litigated claims, reviewing existing statutory and regulatory timeframes for various steps within the process, and using data from nearly 460,000 non-COVID-19 claims and more than 17,000 COVID-19 claims to evaluate the need for and the potential impact of the proposals, including the unintended consequences.

CWCI's latest update on Independent Medical Review, derived from IMR decision letters from 2015 through 2021, measures changes in IMR volume, shifts in the mix of services reviewed; changes in IMR response times; regional variations; and IMR uphold rates by medical service category. The study also looks at the distribution of prescription drug IMRs and uphold rates by drug category; the proportion of IMRs involving medical service request modifications among six treatment categories; and the concentration of IMR activity among high-volume physicians named in IMR letters.

CWCI takes a detailed look at issues surrounding injured worker access to medical treatment in California workers compensation. The study measures the average and median days to initial treatment for various services and injured workers proximity to care, and notes provider perspectives, gleaned from individual interviews, on the administrative burdens associated with rendering care in the workers' compensation system.