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Appendix A Glossary This glossary has been developed solely for use with this report. It should not be construed as a recommenda- tion by the committee of a common set of definitions for the terms included, which are presented in conceptually related groups rather than alphabetically. injury physical trauma to a body part that requires treatment in some form recordable injury injury that because of the kind of treatment it requires is reportable to the Occupational Safety and Health Administration and is thus recorded in the OSHA 300 log recordable injury rate (RIR) number of recordable injuries per 200,000 hours worked rolling RIR 12-month moving average of the recordable injury rate lost workday case (LWC) injury that is sufficiently severe to require the injured person to miss at least one full day of work, not including the day the injury occurred restricted workday case (RWC)1 injury that is sufficiently severe to cause the injured person to be unable to fully perform all of his or her normal job functions on a day(s) other than the day the injury occurred medical treatment case (MTC)1 injury that is sufficiently severe to require substantial treatment and/or prescription medication by a medical professional but does not prevent the injured individual from performing his or her normal job functions first aid case (FAC)1 injury that is not sufficiently severe to require more than minimal treatment and/or nonprescription medication event actual occurrence or happening The rate for such an injury is the number of injuries per 200,000 hours worked. 27

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28 Evaluation of Safety and Environmental Metrics incident event that could have resulted in an injury or property damage or both but that did not incident with serious potential incident that could have caused extensive injuries (including loss of human life) or substantial property losses or both but that did not unsafe act action by an individual that increases the risk of injury to himself or herself and/or to others unsafe act index ratio between the number of unsafe acts observed and the number of indi- viduals observed unsafe condition physical, mechanical, or other condition that increases the risk of injury to individuals who are in proximity to the condition observation action, condition, incident, or event that was noted and documented by an individual or individuals during the course of a safety or environmental assessment, inspection, audit, or other safety or environmental program, whether scheduled or not metric measurement or system of measurements used to analyze and improve performance injury/incident analysis process of organizing injury or incident statistics by shared factors such as body part, injury type, time of day, task being performed, and location, for the purpose of spotting trends in occurrences leading indicator prospective metric or set of metrics that can be used to develop strategies for prevention of injuries and incidents lagging indicator retrospective metric or set of metrics that can point to a need for corrective action