Without any further context and because we are talking about injuries...
Quantified Risk Assessment (QRA) can be used for a number of different purposes. However, it is most valuable as part of a Risk Management program
QRA can be used to estimate the absolute level of risk of an activity or the comparative risks of alternatives. The results of absolute risk assessments can be compared with predetermined risk tolerability standards. Comparative risk studies are used to help select, or eliminate particular options. Risk takes many forms; injury to employees and third parties
http://www.iomosaic.com/docs/whitepapers/How_to_conduct_an_E...