7) and Star Entertainment Group (22. ” (Each case should be counted only once. 000. Monthly injury incidence rate for middle and long-distance runners was highest in October (26. 6 million admi ssions to U. Method of calculation : Frequency rate = number of accidents. The Lost Time Injury Fatality Rate calculator can now be seen on the Data website. 6 GRI 403: Occupational Health and Safety 2018Civil Engineering questions and answers. 33 0. 1%) were fatal injuries and 20,350 (55. Divide the number of accidents by the man-hour value to calculate the number of accidents per a working hour. Lost-time injury frequency rate (LTIFR) industry benchmarks, 2018-19 to 2020-21p. 820 for high-level, 1. Percentage of Claims Frequency (d ÷ e): % The following table demonstrates how the information submitted above will be evaluated. Total recordable injuries rate (TRIR) The number of recordable. 4 per 100,000 FTE in. Fall-Related Injury Rates. 1 first published in part as AS CZ6-1952. Medical Treatment Injury Frequency Rate Formula. S. Calculating Lost Time Injury Frequency Rate. Table 1: Example of calculating standardised incidence rate for country X (2016) EU Country X EU reference populations per sector k (1,000) EU EU sector weights (refpop ,EU / refpop ) Reference population (workers) (1,000) Number of accidents (number) Incidence rate (acc / refpop k) (accidents per 100,000 workers) Weighted incidence rate (r * w The LTIFR can be used to calculate and compare the frequency rate of occurrence of different types of injuries. Jumlah lembur 20. Fourth, approximately 27–66% of unrecognized diagnoses in studies were major injuries. Using the medical treatment injury frequency rate enables companies to measure medical. 1052: Special Provision: 1052. The formula is as follows: ( [Number of lost time injuries in the reporting. 2 Lost Time Injury Frequency Rate (LTIFR) LTIFR is calculated by looking at the number of occurrences of Lost Time Injury that result in a permanent disability or time lost from work of one day shift or more in the period, divided by the number of hours worked (see glossary for frequency rate formula). The report presents contributing IOGP Members’ global results for these. It is an indicator of the state of health and safety at a workplace. LTIFR = (14 / 800,000) = 0. See the latest industry incidence rates (OSHA recordable case rates), or calculate a firm's incidence rate by using BLS's incidence rate calculator. This formula is used to calculate an organization's TRIFR: TRIFR = {(LTI + MTI + RWI) x 1,00,000} / Hours Worked. 5 to $5. 1. 28% of the total)), ankle sprains (63 injuries (11. This is the number of injuries per million hours worked. The most important thing is to . Calculate the injury incidence rate and the LWDI. 3), Qantas (24. Incident Type Near Miss Lag indicator Indicates events that did not result in injury but which have potential to result in injury. 3. 2. The Lost Time Injury Frequency Rate (LTIFR) is not an effective measurement of consequence of workplace injury, as an injury requiring one day off work is recorded as an LTI in the same way as an injury requiring several months off work. Frequency Rate is the total number of disabling injuries per million-employee hours of exposure. [ 34 ] and Trompeter et al. April 2, 2023. Index of lead exposure tables - Last updated 05/23. Frequency Rate Lag Lost Time Injury Frequency Rate2. This number equates to 100 employees, who work 40 hours per week, and who work 50 weeks per year. Skip up contentForm 300, Log of Work-Related Injuries and Illnesses, Form 300A, Summary of Work-Related Injuries and Illnesses. An incident rate calculates the number of recordable incidents per hour worked. found an incidence rate of 3. Historically, frequency measures of injury outcome have been at the centre of work health and safety performance evaluation. Incidence rates are calculated using the total case counts obtained through the weighting and benchmarking procedures described above. Sign in. 2 • Incidence rate of breast cancer for country X is . of. Finally, the standardised incidence sr of the countryrate X is calculated as the sum of theThe LTIFR can be used to calculate and compare the frequency rate of occurrence of different types of injuries. Lost time injury rate is a calculation used to determine the frequency of lost time injuries (LTIs). 40 4. 31% of the total)). 51 Near Miss Report Frequency Rate 4 Workers Died 16. Custom Lost Time Injury Calculator calculator, built using CALCONIC_. Figure 11: Workplace minor injury rate, 2011-2018 Figure 12: Proportion of workplace minor injuries by cause of injury, 2014-2018 Figure 13: Number of dangerous occurrences, 2011-2018 Figure 14: Accident frequency rate, 2009-2018 Figure 15: Accident severity rate, 2009-2018 Figure 16: Occupational disease incidence rate, 2009-2018Medical Incident Rate Calculation data. Revised and redesignated as Joint Standard AS 1885. 05/1000 per year in chronic diseases. on the incidence rate and number of work-related injuries, illnesses, and fatal. Analysis and Incidence Calculation of Snowmobile Injuries Identified in a Rural Wisconsin Health Care System Over Five Years. This is a true rate, because time is an integral part of the calculation, analogous to miles per hour (a rate of. 2. Fatalities 2. The total recordable injury frequency rate (TRIFR), or total recordable injury rate, is the number of fatalities, lost time injuries, substitute work, and other injuries requiring treatment by a medical professional per million hours worked. 1. Calculate the injury incidence rate and the LWDI. 95 2. The formula for calculating Lost Time Injury Frequency Rates is very simple. The knee, shoulder, and elbow are the anatomical locations most prone to. 4. Out of the total number of injuries reported in 2021, 16,342 (44. MTI: Medical Treatment Injury Frequency Rate (injuries per million hours) I: Total number of injuries over the time period; HW: Total hours worked; Example. Feedback can also be emailed to [email protected] to 3. Were, LTI is a Lost Time Injury (a work-related injury resulting in the loss of one or more complete workdays/shifts). 29 1. Lost Time Case Rate. Severity Rate is the total number of days lost or charged per million-employee hours of exposure. (a) Calculate the general injury-illness incidence rate. For example, if you you were to calculate the frequency rate of lost. (a) Calculate the general injury–illness incidence rate. Multiply the number of accidents per a working hour by 100,000 to calculate the accident frequency rate per 100,000 hours. It provides an accurate representation of the frequency and severity of workplace injuries and is commonly used in various industries to assess. A recordable injury is one that is work. The Lost Time Injury Fatality Rate calculator can now be seen on the Data website. 20 Days Lost (RWI) 23. For example, if you recorded 2 incidents, then the number is 2*200,000 or 400,000. (OSHA requires accident rates to be calculated as. A lost time injury refers to any injury sustained on the job by an employee which results in that employee being absent from at least a full day of work. It means that the incidence rate of new diagnoses of breast cancer in this population is 2 per 100,000 women per year. 1. (14) “Disabling Injury Severity Rate” is the number of days lost per 1,000,000 employees-hours of exposure rounded to the nearest whole number. 26 For the year 2015, a firm with 30 employees has three medical-treatment injuries, plus one injury in which the worker lost 6 days of work. Issue: Pressure injuries are significant health issues and one of the biggest challenges organizations face on a day-to-day basis. 4, which means there were 2. 0 Objective 1 2. 82, which is an improvement on the FY21 result of 0. 3. Some people confuse this formula with the formula for lost time injuries, but the total recordable injury frequency rate includes all injuries requiring medical treatment from a medical professional - which in theory means that it will be a larger number. The calculation is based upon the number of lost time injures within a given period divided by the total number of hours worked in that period. And voila! Your company’s LTIFR is 2. Nosocomial infections affect approximately 2 million patients in the United States each year, increasing overall patient care costs by an estimated $4. This number tells you the number of lost time injuries per 100 worker years (equivalent to 2000 hours. The formula can also be multiplied by 1,000,000 to get the injury frequency. PUBLISHED BY STANDARDS AUSTRALIAThis study analyzed WC accepted disabling claims for the construction industry in the State of Oregon in the US from a 7‐year period of 2007‐2013. More calculator widgets Knowledge base. This is a decrease of 288 total injuries from 2020 (37,024). 4 and 14. Calculating TRIFR. Some people confuse this formula with the formula for lost time injuries, but the total recordable injury frequency rate includes all injuries requiring medical treatment from a medical professional - which in theory means that it will be a larger number. Communicating trends in pressure injury rates to key stakeholders. gov. Once they return to work,. Implementation of a medical device related pressure injury prevention bundle: a multidisciplinary approach. During the year 2014 there were seven first-aid cases, three medical treatment injuries, an accident in which and injured employee was required to work one week in restricted work activity, a work-related illness in which the employee lost one week of work, a work-related illness in which the employee lost six weeks of work,. It provides an idea about the organization’s efforts to protect the workers from work related hazards. tained more fractures, more organ injuries, and had higher need for surgery and intensive care. 6%, slightly lower than the rate reported for mechanics working in combat service support units. as Lost Time Injuries, but any days lost or time on restricted duties are not included for severity rate calculation purposes. Sources of data 23 11. It is a used lagging indicator used to quantify an organization’s safety performance. Incidence Rate: A measure of the frequency with which a disease occurs in a population over a specified time period. Why calculate a sharps injury rate?All Injuries Frequency Rate: All injuries including MTI’s, RWI’s, LTI’s, fatalities and FAI’s or Combination of TRIFR and FAI: MTI: Medical Treatment Injury: Requiring medical treatment: FAI: First Aid injury: Requiring first aid treatment: DART rate: Days Away, Restricted or Transferred: Number of recordable injuries per 100 FTE’s. Restricted Work Case (RWC) - Workplace injury resulting in an employee being given alternative job assignment. facilities reported 10,680 OSHA- recordable * patient handling and movement (4,674 injuries); slips, trips, and falls (3,972 injuries); and workplace violence (2,034 injuries) injuries occurring from January 1, 2012–September 30, 2014. The output of this all injury frequency rate calculation is your AIFR 'score' and indicates how many injuries are suffered when standardised across 100 employee working 40 hours per week for one year. 05 3. The word recordable is used because not all kind of incident are captured when calculating the OSHA recordable incident rate; only recordable incident. Global TBI Incidence and Prevalence. If the incidence rate of a specific disease was found to be increasing or decreasing over several years, it is suggestive that the incidence of. Read More. 1 medical treatment cases per 1,000,000 hours worked. The LTIFR calculation is that same as the LTIR procedure, but the 200,000 figure is replaced about 1,000,000 inches this mathematical calculation. The injury required medical attention, for which John received sutures at the local emergency room. These differed from 15. Calculating Lost Time Injury Frequency Rate . The focus of this week’s post is to dissect the motivation to move away from using lost time injury (LTI) data as a measure of a business’ health and safety performance and introduce a new framework for reporting injuries and illnesses that will. Common leading safety indicators include safety training and. 3. 8 injuries/1000 hours (Brown and Kimball, 1983 ; Haykowsky et al. Improving care to enhance injury outcomes can take many forms, such as those outlined here. An LTI refers to any injury sustained by an employee that results in them missing at least one full day of work after the day the injury occurred. Calculate Now. medical treatment facilities at a rate of 6. . Claims/1,000 FTEs Data for 2020 is provisional. Using this standardized base rate, any company can calculate their rate(s) and get a percentage per 100 employees. 4. A firm has 62 employees. AS 1885. ,. In particular, lost time injury (LTI) rates have, over time, become the cornerstone of mainstream injury reporting and the benchmark against which organisational, industry and national comparisons are made. Incidence Rate: A measure of the frequency with which a disease occurs in a population over a specified time period. 2. b) Angka keparahan kecelakaan kerja (Safety Rate) SR = Jumlah hari kerja yang hilang x 1. 36Definition. Using the medical treatment injury frequency rate enables companies to measure medical. Frequency Rate = Total number of disabling injuries x 1,000,000 Employee-hours of Exposure. Recently, within the framework of the EUROCOST project, a uniform method to calculate medical costs of injury was developed and applied in 10. The adjusted estimates for a particular characteristic, such as injury and illness cases involving days away from work, are aggregated to the appropriate level of industry detail. comparable across any industry or group. The 200,000 is the benchmark established by OSHA because it represents the total number of hours 100 employees would log in 50 weeks based on a 40-hour work week. The formula can also be multiplied by 1,000,000 to get the injury frequency. 800 FTEs. Severity Rate is the total number of days lost or charged per million-employee hours of exposure. 54 = 1. 7 The difference may be explained by the different way of calculating the injury incidence rate. accident frequency rate calculation excel. Rates Lost time injury frequency rate (LTIFR) The number of LTIs (including fatalities) per million hours worked. An injury or illness is recordable if it results in any of the following: • death, • hospitalization, • days away from work, • restricted work that requires a transfer to another job, or • medical treatment beyond first aid. 54 1. For the year 2001, a firm with 25 employees has two medical-treatment injuries, plus one injury in which the worker lost 3 days of work. K. 7 injuries per club per season, with a prevalence of 156. 12. During the year, there are seven first-aid cases, three medical-treatment injuries, an accident in which an injured employee. Calculating Your Lost Time Injury Rate . During the year there are seven cases that required one time treatment only, five medical treatment injuries, an accident in which an injured employee was required to work one week in restricted work activities, a work-related illness in which the. If employees have taken a total of 11 days away from work, spread over 4 recordable incidents, the injury severity rate is: 11/4 = 2. 2 Rate (per 100 full-time workers) Total nonfatal work injury and illness rates, private industry Total recordable cases Cases involving days away from work,. 4 lost time injuries for every one million man hours worked. , 2011 ). • Number of all Injuries inclusive of first aid, medical treatment, and lost time • Number of Near Hits. Lost Time Injury Days (LTID) is another way to record injury rates. Total Recordable Injury Frequency Rate (TRIFR) This frequency rate measures the frequency of recordable injuries i. In case the . Dissemination 21 10. This includes the cumulative hours worked by all. AIFR = (Reported injuries x 200,000) / Employee total hours worked. The LTIFR calculation is the same as the LTIR formula, but the 200,000 figure is replaced with 1,000,000 in this mathematical calculation. Historically, frequency measures of injury outcome have been at the centre of work health and safety performance evaluation. 77 1. 25 During a 6-month period, a firm employing 40 employees has 15 injuries and illnesses requiring medical treatment; in four of these cases the employee lost at least 1 day from work. Illness resulting in one week loss work day = 1. 27: A firm has 62 employees. The rate can be calculated using lost time injuries, and compared to the calculation using medical treatment injuries. 2 Determining injuries vs diseases 10 3. Examples of TRIFR in a sentence. The calculation is based upon the number of lost. The TRIFR is the number of injuries (excluding fatalities) requiring medical treatment per million period worked into an organisation. Then, the number is multiplied by 200,000 to make it easier to use and interpret. 13,900 deaths in 2020–21. AKI is one of the most clinically impactful diseases since it affects patient management to a great extent in terms of the treatment options for their primary disease. The formula is given as: (Number of lost-time injuries in the accounting period x 1,000,000) / (Total hours worked in the accounting period) To make it. 000. A lost time accident is an accident occurring at work that results in at least one day's absence from work, not including the day that the accident occurred. DISABLING INJURY FREQUENCY RATE. 07The lost time injury severity rate calculation is: Total number of lost workdays/Total number of OSHA recordable incidents. • Number of Lost Time Injuries (LTI). Suggested approach • Total . Medical treatment injuries Those incidents, which were not lost time injuries or disabling injuries, for which first aid and/or medical treatment was required by a doctor, nurse or person qualified to give. Exposure It shall mean the total number of employee-hours worked by all employees of the reporting establishment or unit. 0% and a. Number of medical treatment injuries x 1,000,000 Number of hours worked. 72 2. 49 Lost Time Injuries 1. 4%) were minor injuries. Introduction. Preventing pressure injuries . Thus, the solution from the incidence rate definition is: 1 / 50,000 * 100,000 = 2. [1] An AE is a harmful and negative outcome that happens when a patient has been provided with medical care. Now, you are probably wondering what makes a strong TRIR. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. Incidence rates for work-related claims, by year of injury and claim type, 2002–2020 Incidence rate, all claims Incidence rate. The total recordable case frequency rate (TRCFR), a measure of frequency of injuries, was 0. Fatalities* Figure 3: Safety pyramid 2022. There have also been published reports of the profile of Australian football injuries treated in medical treatment settings, such as hospitals, but such studies have not allowed calculation of. The lower extremity was injured more often than the upper extremity (60. 1 Recording decision tree 10 3. Waste Collection, Treatment and Disposal Services. Pre-hospital, or emergency medical services (paramedics) can be improved. Please visit the website and fill out the short online questionnaire. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. 2) Disabling injury severity rate (essen-tially a weighted frequency rate). a. 2) Injury Severity Rate = (No. 1. Please use the following calculation to determine your organisation s Total Recordable Injury Frequency Rate (TRIFR) in response to this question: TRIFR = (LTI+MTI+RWI) x 1,000,000 Hours worked Definitions: Lost Time Injury (LTI): A work related Injury that results in a loss of one or more complete work days/shifts Medical Treatment Injury. Total Hours Worked in the past year: 500,000. Each year, more than 2. It provides an idea about the organization’s efforts to protect the workers from work related hazards. Calculating TRIFR. During the year there are seven cases that required one time treatment only, five medical treatment injuries, an accident in which an injured employee was required to work one week in restricted work activities, a work-related illness in which the employee lost 89 days of. Please visit the website and fill out the short online questionnaire. e. SR is the total number of lost workdays per year × 200000 work hrs/number of workers in a job. =. 1 medical treatment cases per 1,000,000 hours worked. In cases with multiple injuries, assign the case to the category representing the most severe injury. Preventable adverse events are a leading cause of death in the United States. 6. Rates Lost time injury frequency rate (LTIFR) The number of LTIs (including fatalities) per million hours worked. 000322 x 100,000 = 32. A single injury or illness has a much greater effect on incidence rates in small establishments than on larger establishments. A lost time injury is an injury sustained on the job by worker that results in the loss of productive work time. The fatal work injury rate was 3. 2 missed games per club per season. Let’s say you have the following data: Total injuries: 5; Total hours worked: 250,000; Using the formula: MTI = (5 / 250,000) * 1,000,000 = 20 MTI The injury frequency rate formula and calculation Calculating your all injury frequency rate is relatively straightforward when using the right formula and keeping track of injuries efficiently. In medicine, the incidence is commonly the newly identified cases of a disease or condition per. Only 57 out of 170 VA Medical Centers (34%) are performing. 2013) tools are two such efforts. The highest number of head injuries were reported during FIFA World Cup tournaments. So when comparing rates, you have to be careful about which calculation method is used. A medical treatment case is any injury. In this article, the authors summarize six important articles related to pressure injuries published in 2020. (OSHA requires accident rates to. TRIR = 2. comparable across any industry or group. treatment and/or results in loss of consciousness, restriction of work motion or transfer to another job. ICFR (safety KPI; Incident Cost Frequency Rate) LTIFR is a KPI that measures the frequency of lost time injuries per man hours worked over a certain period of time. 4. 73 2. 000. We would like to show you a description here but the site won’t allow us. 667 for intermediate, and 0. Formula. During the year, there are seven first-aid cases, three medical-treatment injuries, an accident in which an injured employee was required to work 1 week in restricted work activity, a work-related illness in which the employee lost 1 week of work, a work-related illness in which the employee lost 6 weeks of work, and a fatality resulting. The company has a total of 342 employees, so we can calculate the engagement rate for February as 34 ÷ 342 x 100% = 9. Were, LTI is a Lost Time Injury (a work-related injury resulting in the loss of one or more complete workdays/shifts). The 200,000 figure in the formula represents the number of hours 100 employees working 40 hours per week, 50 weeks per year would work, and provides the standard base for calculating incidence rate for an entire year. The total recordable injury frequency rate (TRIFR), or total recordable injury rate, is the number of fatalities, lost time injuries, alternate work, and other injuries requiring medical treatment per. Adverse events (AE) frequently occur in any medical system, and at least one in ten patients are affected. Here is the TRIR calculation formula set forth by OSHA: TRIR = Number of Incidents x 200,000 / total number of hours worked in a year. : Frequency Rate (FR) = (Number of Recordable Incidents / Total Hours Worked) x 1,000,000 Frequency Rate (FR) = (20 / 500,000) x 1,000,000 Frequency Rate (FR) = 40. 6. MTI = I / HW * 1,000,000 MT I = I /H W ∗ 1,000,000. The number of disabling (lost time) injuries per million employee-hours of exposure: DIFR = Disabling Injuries x 1,000,000 / Employee-hours of exposure. 77, 10% higher than in 2020 (0. 3% of patients with missed injuries have clinically significant missed injuries. The rate of injury in powerlifters has been reported to be between 1. of Workers No. LTIFR = 2. Patients or Other Participants. 0 Man-days Lost5 544,664 417,063 KEY FACTS No. If you need help calculating your company's OSHA TRIR rate, please call (720) 547-5102. population of. 1 14. The 200,000 figure in the formula represents the number of hours 100 employees working 40 hours per week, 50 weeks per year would work, and provides the standard base for calculating incidence rate for an entire year. . Pressure injury is a localized injury to the skin and/or underlying tissue, usually over a bony prominence or related to a medical or other device and it is the result of intense and/or prolonged pressure or. 32 cases per 100,000 . For the 95 companies that further analyzed major injuries in their reporting, the ratio was one lost time injury per 15 medical treatment injuries. TRIFR can sometimes be used interchangeably with the lost time injury frequency rate, but it is different in that it includes other types. 0% Stage 2 incidence % of Total PI 38. To calculate your LTIFR, simply plug those numbers into your formula: (6 x 1,000,000) / 2,500,000. Restricted work cases 2. Calculating Total Recordable Incidence Rate (TRIR) If you would like to calculate your establishment's nonfatal injury and illness incidence rate(s), we have an incidence rate calculator on our website that might be helpful: This tool can be used by establishments of all sizes in any industry. Injury frequency rate = (Number of injuries in the period × 1,000,000) / Number of hours worked in the period Safeopedia Explains Injury Frequency Rate. INTRODUCTION. 3. calculation when taken over a twelve month period combined with the limited set of ,6. Lost Tim Injury Frequency Rate (LTIFR) Digunakan untuk mengetahui banyaknya kecelakaan kerja per satu juta jam kerja orang akibat kecelakaan selama periode 1 tahun. Those two values become the basis for calculating the lost time injury frequency rate (LTIFR) at the end of each period. Medical treatment injury frequency rate is simply the rate at which medical treatment injuries have occurred over a specific period of time,. The LTIFR is the average. Ironically Esso’s safety performance at the time, as measured by its Lost Time injury Frequency Rate, was enviable. What Does Total Recordable Frequency (TRF) Mean? Total recordable frequency (TRF) refers to the rate of repetition of all workplace related death, sickness and injuries that cause unconsciousness, limit work, movement, performance, result in job cessation, transfer to another job, or which require medical treatment or first aid. which does not result in a disabling injury but which. Transcribed image text: Over the course of one year, a firm with 25 employees has 2 medical treatment injuries, as well as one additional injury in which the employee loses three days from work. 49 Lost Time Injuries 1. Those two values become the basis for calculating the lost time injury frequency rate (LTIFR) at the end of each period. Descriptive epidemiology study. And, the overall lost time injury rate (LTIR) (fatalities and lost work day cases) was 0. occupational injuries and disease known as the Workplace injury and disease recording standard _____ AS 1885. 85 470 312. Injuries resulting from falls or being struck by/against an object accounted for more than 44%. Total number of hours worked by. To date, available studies have reported the incidence of injury during CrossFit training varying from 2. 95 2. 4 injuries per 1000 hours), 4,11 and traditional weightlifters (2. JURNAL K3LL. 000. 4 Medical Treatment Case Medical Treatment Cases are defined (as below), those injuries requiring medical care, provided by a physician or trained professional medical personnel which do not result in time lost. **The 200,000 figure in the formula represents the number of hours that would be worked by 100 employees working. You must consider an injury or illness to meet the general recording criteria, and therefore to be recordable, if it results in any of the following: death, days away from work, restricted work or transfer to another job, medical treatment beyond first aid, or loss of consciousness. 000, sedangkan untuk TRIR (Total Recordable Incident Rate) menggunakan konstanta 200. Medical treatment injury frequency rate is simply the rate at which medical treatment injuries have occurred over a specific period of time, usually standardised into MTI per million hours worked or per 100 full-time workers during a one year period. 4% for high frequent chronic diseases. This is how the TRIF is calculated: (# injuries x 200,000) divided by. Infection is common among hospitalized patients and associated with substantially increased health care costs and worsened outcomes. 29. Combat service support units reported injuries in this study at 65. Accident frequency rate: The frequency rate is the number of occupational accidents ( work stopped more than one day) arisen during a period of 12 months by one million hours worked (Number of reportable accidents x 200,000)/ Employee total hours worked: MTI Safety: Medical treatment injury Industry benchmarking. Nonpayment for harms resulting from medical care: catheter. You can calculate this KPI with the following formula: TRIFR = total number of incidents x 1,000,000 labor hours / total employee hours worked For a company with 150 medical incidents over the course of 4,000,000 employee hours, you.