Lost Time Injury (LTI)
Definition - What does Lost Time Injury (LTI) mean?
A lost time injury (LTI) is an injury sustained by an employee that will to a loss of productive work time.
An injury is considered an LTI only when the injured worker is unable to perform regular job duties, takes time off for recovery, or is assigned modified work duties while recovering.
Lost time injuries encompass both temporary injuries that keep the employee away from work for a day to permanent disabilities and conditions that prevent them from ever returning to the job or performing the same work tasks.
Safeopedia explains Lost Time Injury (LTI)
While any type of serious injury can result in time away from work, only an injury sustained while on the job counts as a lost time injury.
Employees who return to work after sustaining a work-related injury are still counted among the company's lost time injuries if they are unable to perform the duties outlined in their job descriptions.
Lost time injuries can act as a basic representation of a company's safety performance, as well as the effects of those injuries on the workforce's productivity. They form the basis of various safety and performance metrics, such as Lost Time Injury Frequency Rates (LTIFR) and Lost Time Injury Incidence Rate (LTIIR).
Lost time injuries are lagging indicators of safety, meaning they provide insight into a company's past safety performance but are not necessarily indicative of its future safety performance.