What is an Incidence Rate?

Incidence rates represent the number of injuries and illnesses for a given number of full-time workers, and are calculated as:

(N / EH) x 200,0001

Where:


N = number of injuries and illnesses
EH = total hours worked by all employees during the calendar year

200,0001 = base for 100 equivalent full-time workers1
(working 40 hours per week, 50 weeks per year).


1/ The number for full-time equivalent workers used to calculate the base varies. Refer to the footnotes on each chart.

Click here go the Bureau of Labor Statistics Web site to calculate your company's incidence rate using their incidence rate calculator and comparison tool.