Research

Claims filed by residents of Californias nine northern most counties comprise 1.1% of the state's work force, but 3.3% of the states workers' comp claims and 2.2% of paid losses. CWCI's seventh IRIS Regional Score Card offers detailed data comparing key aspects of claims from the Northern Counties to those from other regions.

Claims filed by workers living in the Sierras represent just 1.7% of California workers' comp claims, but over the past decade average loss payments in the region have grown faster than in other parts of the state. CWCI's final Regional Score Card takes a close look at key aspects of Sierra claims and compares the results to those from other regions.

A 12-page CWCI analysis that measures and compares IMR outcomes from 2014, 2015, and 2016.

A new CWCI study provides a detailed data on California workers compensation cumulative trauma (CT) claims, identifies characteristics that differentiate CT claims from non-CT claims, and finds the high cost of CT claims is strongly associated with high levels of attorney involvement and the high incidence of CT claims in the L.A. Basin.

A detailed analysis on IMR outcomes, including decision counts and uphold rates, based on data gleaned from 2015 IMR determination letters

New CWCI research based on 2014 UR data and IMR determinations from the first half of 2015 shows an estimated 96 percent of medical services in California workers' comp are approved.