Lost Time Incident Rate (LTIR)

Lost time accident is an incident that has resulted in an employee needing to miss work due to sustaining an injury while working. The formula for calculating Lost Time Incident Rate (LTIR) is:

(LTI / Total # of Hours in Measured Period) x 200,000

Divide the total amount of lost time injuries in a specific period by the total number of hours worked in that same period. Then multiple by 200,000 – this represents 100 employees working a 40 hour week for 50 weeks per year (this is the generally accepted baseline of LTI established by OSHA).