Research

A substantial body of evidence from the group health sector indicates that there is a strong relationship between physician experience, measured by the volume of care provided, and the outcome of that care. This study explores the association between the experience level of the providers who treat and manage California's injured workers and their outcomes as measured by claim costs (medical and indemnity) and other factors.

This research explores the hypothesis that increasing chiropractic utilization from 1993 – 2000 was associated with the statutory and judicial expansion of the primary treating physician's presumption of correctness. This study measures changes in the volume of services and the level of payments for chiropractic care in California workers compensation.

This study examines various characteristics of claims with injuries between 1993 and 2000 that involved attorneys. The research measures the level of attorney involvement, average legal and benefit costs of those claims, the timing of attorney involvement and the method of resolution.

In 2004, state lawmakers were considering a proposal to cap the payment of temporary disability beyond two years. To evaluate the potential impact of such a move, policymakers needed to know what proportion of claims involved more than two years of paid TD benefits and the proportion of TD paid after the two-year threshold. Results of this analysis hinged on the specific start and stop points state lawmakers used to define the two-year time frame.

This analysis compares vocational rehabilitation payments prior to 2004 to the maximum voucher amounts allowed by the new Supplemental Job Displacement Benefit program that took effect for injuries on and after January 1, 2004.

This report established baseline medical utilization data to begin to track trends subsequent to the inception of AB749.