There have been a fair number of comments about the Propublica articles in early March. One was The Demolition of Workers' Comp, another was Workers' Compensation Reforms by State. At about the same time, the Occupational Safety and Health Administration published a report. I have had a number of people ask where to access these documents and so provide these links.
Coincidentally, I worked on a review of the statistical analysis that is provided every other year by the Oregon Department of Consumer and Business Services. In mid-March 2015, that effort culminated in a comparison article titled Comparing the Premium Cost of Workers’Compensation published by the National Association of Workers' Compensation Judiciary.
There are a number of comparative law articles also available on the NAWCJ website, the majority of which were authored by workers' compensation judge David Torrey of Pennsylvania. Anyone with an academic interest in workers' compensation would enjoy some or all of these articles.