Serious Injury Frequency Rate

Updated: 28 November 2024

What Does Serious Injury Frequency Rate Mean?

The serious injury frequency rate is a calculation used in the workplace to determine the number of injuries sustained by employees over a specific period, typically based on working hours. This rate reflects the safety of the working conditions for the company’s employees.

Insuranceopedia Explains Serious Injury Frequency Rate

The serious injury frequency rate is calculated by determining the number of injuries per 1,000,000 working hours. For example, if 200 injuries occur during 1,000,000 working hours, the serious injury rate would be 0.0002%. Note that working hours exclude paid vacations.

This calculation provides insight into the safety of a workplace and can help assess the effectiveness of safety programs. Additionally, insurance companies offering group insurance for employees may use this data to evaluate premiums and, in some cases, even deny coverage.

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