Impairment rating of injured workers depends on the when and where of assessment

Dec 14, 2018, 12:13 PM by Joel Tiller
If you experience an injury at work, the amount of compensation you receive depends on which impairment rating system is used, according to research led by HEI's Jason Busse.

If you experience an injury at work, the amount of compensation you receive depends on which impairment rating system is used, according to research from McMaster University and the Netherlands. 

The American Medical Association (AMA) Guides to the Evaluation of Permanent Impairment is used in workers' compensation systems, federal systems, automobile accidents and personal injury cases to rate impairment.

However, a comparison of a group of injured workers assessed using the two most recent editions of the AMA guides revealed that usage of the sixth edition resulted in significantly lower impairment ratings than the fifth edition.

The findings were published today in the Journal of Occupational and Environmental Medicine.

"Our study shows your impairment rating will depend on the version of the AMA guides that you are assessed with," said Jason Busse, first author and an associate professor of anesthesia at McMaster.

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