85 470 312. This includes the cumulative hours worked by all employees during the specified period. use the formula: (2. Total number of occupational injuries. It also provides the statistics at the level of the industry sector and province/territory. The first element in the formula, the number of injuries, comes from all workplace incidents or illnesses that either took place at work, or were the result of. A recent report compared sharps injury rates in 10 Midwestern facilities that differed in size and scope of operation. There are others but I think this is what you are trying to calculate. The industry-wide rates include both offshore. set the amount of employees employed by the. Download free DART calculator > DART for small companies10. Although our Lost Time Injury Frequency Rate statistics are promising, an integrated focus, including leading and lagging indicators, isTo calculate your LTIFR, simply plug those numbers into your formula: (6 x 1,000,000) / 2,500,000. • Frequency rate (for fatal and non-fatal cases) per 1’000’000 Comparative measures may be calculated for each economic activity, occupation, sex, age group, etc. 3% increase from 2017 (47,800). 1. e. Industry benchmarking. Of the 2018 total injuries, 21,378 (43. Indicator defined as: Total cases of occupational injuries resulting to deaths whether death occurs immediately after the. 023, F. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. Answer: Incidence rate is equal to no. We would like to show you a description here but the site won’t allow us. The simplest mortality rate definition is the measure of the frequency of death in a specific population measured over a defined time period. : ABC Manufacturing Company’s Frequency Rate is 40. Therefore, Incidence charge, IR = Re/Rt *100. Relevance: • Allows you (as well as your customers and OSHA) to compare your injury rates to other company’s injury rates that are in businesses similar to yours. The formula for calculating incident rates varies depending on the type you’re interested in. People in 100+ countries use this safety management system to document, track and improve injury rates. 4, which means there were 2. A question ' How often do injuries occur?' is replied by the frequency rate which is defined as the disabling (Fatal Accident) injuries per 1000000 (Million) man-hours worked. Its formula: F = (number of disabling injuries x 106)/employee hours of. 1 Therefore, the calculation of. au. Frequency rates of disabling occupational injuries per 500 full-time workers, calculated as the number of disabling injuries per 1,000,000 employee hours of exposure, where 1,000,000 workhours of exposure is equivalent to 500 persons each exposed to 2,000 hours of work per year. Frequency rate=number of disabling injuries/Number of man-hours worked x 1000,000. Frequency Rate means the figure which results after using the formula for determining the frequency rate provided in Rule 4A-62. Frequency rates 1 9 Incidence rates 1 9 Severity rates 2 0 Days lost per case of injury 2 0 9. In 2021, a total of 36,736 injuries (including disabling injuries, fatal injuries and minor injuries) was reported. Sum all the lost time of accident cases during the period you want to calculate the LTIF. The total reported number of disabling and fatal injuries remained relatively consistent from 2020 to 2021. 00 0. Frequency Severity Indicator (FSI) Frequency Severity Indicator adalah kombinasi dari frekwensi dan severity rate. The lost time injury frequency rate (LTIFR) shows the relationship between the number of injuries that result in lost working time and the total hours worked in the company. If you multiply 3 times the 200,000 figure, you get 600,000. 1. Frequency Rate. 61 1. 7%) were disabling injuries, 49 (0. A good TRIR is less than 3. This number tells you the number of lost time injuries per 100. Injury Frequency (also known as: Injury Frequency Index) Lost Time cases + Restricted Duty Cases + Death/Fatality Cases + Other Recordable Cases * 200000/Total Hours Worked. A lower incident rate means equipment is operating more efficiently than usual. It is calculated in the following manner: (Number of Reportable Injuries in the period / Total hours worked (by all employees) during the period) x 1,000,000. Basic Epidemiological Methods and Calculations. Example 1. 7. 4. Lost time frequency rate (LTIFR) shows the average number of injuries occurring over 1 million working hours. Sample 1. A. Use the LTI Rate Formula: The LTI rate is calculated using the following formula: LTI Rate=Number of Lost Time Incidents×1,000,000/Total Hours Worked; Plug in the Numbers: Number of LTIs = 5Total Hours Worked = 500,000 hoursThe total hours worked in this period (for all employees) was 800,000. (Number of DART Incidents X 200,000) / Total number of hours worked by all employees. #hsestudyguideAfter finding the number of recordable injuries and the total employee work hours for the year, input the data into the following formula to calculate TRIR: TRIR = (Number of OSHD recordable injuries and illnesses in a year x 200,000) / Employee total hours worked in a year. The formula for calculating Lost Time Injury Frequency Rates is very simple. 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. 2) Disabling injury severity rate (essen-tially a weighted frequency rate). • Frequency rate (for fatal and non-fatal cases) per 1’000’000 Comparative measures may be calculated for each economic activity, occupation, sex, age group, etc. 22 4. Take the number from Step 3 and divide it by the number from Step 2. It is a useful tool that can help organizations measure and monitor their LTIR. The LTIFR is generally considered the company’s most significant measure of safety performance. 8%. 14%) were fatal injuries and 26,383 (55. A simple formula for calculating accident incidence (frequency) is to: Take the total number of recordable incidents for the year from your OSHA 300. Duration rate — the average number of work days lost per injury. 1. This is a decrease of 288 total injuries from 2020 (37,024). Practical Example An index computed by multiplying the disabling injury frequency rate by the disabling injury severity rate and dividing the product by 1,000: DII = DIFR x DISR / 1000. Lost Days defines the. I. The formula for calculating your accident frequency rate is the number of reported accidents multiplied by 200,000, divided by the number of employee hours worked. Please review the table's key for any confusion regarding the formulas. In the formula, 200,000 signifies the total number of hours worked by 100 employees over the course of a year and results in a. The formula can also be multiplied by 1,000,000 to get the injury frequency rate per million hours worked which is also a popular way of. Sample 1 Sample 2. Contoh : Suatu perusahaan dengan 500 tenaga kerja, kegiatan 50 minggu per tahun, 48 jam perminggu. 2. 05/1000 per year in chronic diseases. The construction industry is fifth among all sections of the economy in terms of number of. 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. of recordable injuries X 200,000) / No. Step 2: Determine the Total Hours Worked. Zero harm seeks to prevent all accidents and incidents, and one of the best ways to measure and prove zero harm is to get to an AFR of 0. The number of reported accidents is derived from your operations, as is the total hours worked, while the number 200,000 is used in a number of safety KPI's to standardise the AFR. Accident frequency rate is one of the standard safety measures which companies use to identify and analyse the number of occupational accidents which take place in the workplace. Say: Incidence and prevalence measures are used in monitoring pressure injury rates. An incident rate calculates the number of recordable incidents per hour worked. Occupational Safety and Health Administration defines incidence rate as the number of injuries/illnesses × 200000/employee-hours worked, where 200000 represents the equivalent of 100 employees working for 40 hrs per week, 50 weeks per year. OSHA established the 200,000 benchmark established by OSHA. Helps. Statistics on occupational injuries could come from a variety of sources, including various types of administrative records (insurance. Your OSHA 300 Log and 300A Summary will have the information needed to find your rate of recordable injuries. 12 in 2019, and the LTIR was 1. 9). Absolute Measure of Effect (Rate. 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, 2009-2018Incidence rates of the ten highest incident diagnoses were calculated based on three different defined populations (Table 3). We are just following it. And voila!This easy-to-use calculator will determine your facility’s OSHA Incident Rate. total number of occupied beds . That is obviously unrealistic, especially for big companies with many employees. To calculate your LTIFR, simply plug those numbers into your formula: (6 x 1,000,000) / 2,500,000. 91 per 10,000 (n = 4) would mean that in every group of 10,000, approximately 8. Multiply that number by 200,000, which represents the number of hours worked by 100 full-time employees, 40 hours per week for 50 weeks per year. The Lost Time Injury Fatality Rate calculator can now be seen on the Data website. All 3 types of injuries declined from 2019. Variables: MTI is the Medical Treatment Injury. Injury Frequency Rate = (Number of Injuries / Total Exposure Hours) x 1,000,000 This formula will give you the injury frequency rate per 1,000,000 exposure hours. per 1 000 000 hours : the number of new cases of injury during the calendar year divided byyy the total number of hours worked by workers in theIncidence is generally expressed as the number of cases per person per year of examination. Introduce the most common methods of disease frequency in epidemiology. Enter N = Number of Recordable Injuries and/or Illnesses in One Year EH = Total Number of Hours Worked by all Employees in One Year 200,000 = Equivalent of 100 Full-Time Employees Working 40 Hour Weeks. Safety is becoming more and more important to all workers and all companies, and lost time injury frequency rates should be improved in parallel with this increased attention. Injury frequency rate can be calculated by the following formula: 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. 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. S. Lost time injury frequency rate (LTIFR) refers to the amount or number of lost time injuries, that is, injuries that occurred in the workplace that resulted in an employee's inability to work the next full work day, which occurred in a given period relative to the total number oh hours worked in the accounting period. 5%) were disabling injuries, 44 (0. If you are a beginner looking to build muscle, stability, and endurance, use a lighter weight and do fewer sets with high repetitions: two or three sets of 12 to 20 reps. You can build muscle with a wide range of. Untuk TRFR (Total Recordable Frequency Rate) menggunakan konstanta 1. To use the Severity Rate Calculator formula, follow these steps: Determine the number of lost workdays and the number of restricted workdays due to injuries or illnesses. 93 Based on 5 lost-time injuries for 111,935 hours of exposure, this company would experience 8. the number of incident and prevalent chronic cases in 2012, we used all encounters in the period 2010–2012 and the. 4 lost time injuries for every one million man hours worked. Only fill in the information of cells that are colorless. 2 injuries/1000 h of exposure) was almost six times higher than training injury incidence rate (3. Notation and terminology: Concepts apply to incidence proportions, incidence rates, and prevalence proportions, all of which will be loosely called “rates. 2% decrease from 2018 (49,366) Of the total number of injuries in 2019, 20,850 (44. Essentially the same calculation as LTIR but rather than calculating per 200,000. 9% from 2020 12/16/2022 There were 5,190 fatal work injuries recorded in the United States in 2021, an 8. 5 per 100,000 workers (610 major injuries) in 2021 to 17. In 2021, a total of 36,736 injuries (including disabling injuries, fatal injuries and minor injuries) was reported. Dissemination 21 10. 9 For example - damage while the vehicle is parked or otherwise unattended, hail or flood damage, damage due to theft orThere were 49,366 total injuries (disabling, fatal and minor) reported to the Labour Program in 2018, a 3. The TRIF formula looks like this: (Number of injuries x 200,000) / (number of hours worked) A fairly simple formula, which is easy to understand once you know what you’re looking at. Formula: LTIFR = Injuries ÷ Working hours x Standardization factor. LTIFR = 2. Medical Treatment Injury Frequency Rate Formula. The List of Terms explains the definitions of injury rates and other relevant terms. The first element in the formula, the number of injuries, comes from all workplace incidents or illnesses that either took place at work, or were the result of. Also differences in long-lasting diseases were relevant. Then, for each country X and sector k the weights w k are multiplied with the (non-standardised) incidence rate r in order s produceto weighted incidence rate r' specific for s sector in each country X: 𝑟𝑟′𝑋𝑋,𝑘𝑘= 𝑟𝑟𝑋𝑋,𝑘𝑘∗ 𝑤𝑤𝑘𝑘 3. This measure reflects both frequency and severity, yielding a combined index of total disabling injury (ANSI Z16). The incidence rate formula is as follows: (Number of injuries and illnesses X 200,000) / Employee hours worked = Incidence Rate The 200,000 in the formula represents the equivalent of 100 employees working 40 hours per week, 50 weeks perIncidence refers to the number of new occurrences of disease during a specified period of time. Considerations: • In the US,. 2. HSE: LTIF or LTIFR refers to Lost Time Injury Frequency Rate, the number of lost time injuries occurring in a workplace per 1 million man-hours worked. number of occupied beds . 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. La tasa de incidentes o TRIFR por sus singlas en inglés (Total recordable injury frequency rate) es uno de los indicadores de desempeño en prevención de riesgos laborales que más se utiliza en. the total number of irreversible and reversible cases. A. Calculate Injury/Illness Rates. All 3 types of injuries decreased from 2018. I would take a guess that your formula may be wrong. ” Let R 1 represent the rate or risk of disease in the exposed group and let R 0 represent the rate or risk of disease in the non-exposed group. The formula for calculating AIFR is:. Sources of data 23 11. So the formula, again, is accident rate= (number of accidents*200,000)/number of hours worked. This. but which have potential to result in injury. Users should consider a few important factors when comparing different types of nonfatal incidence rates and fatal injury rates. Take your total number of recordable cases, multiple that number by 200,000 and then divide that combined number by the total number of hours worked. of hours worked (since the last recordable injury) *Recordable Injuries = Any work related injury or illness that requires more than first aid treatment and/or results in loss of consciousness, restriction of work motion or transfer to another job. The overall incidence of injuries in female football players was 6. . It represents the total number of hours 100 employees would log in 50 weeks based on a 40-hour work week. Take the number from Step 3 and divide it by the number from Step 2. The formula for calculating AIFR is: AIFR = (Reported injuries x 200,000) / Employee total hours worked The output of this all. 48. (1. Increasingly, sports injury data are reported as incidence rates—for example, injuries per 1000 hours played—that is, using numerator and denominator data—as this methodology takes account of the exposure time at risk. There is a difference between the frequency rate and the. Incidence rates were calculated using different denominators (person-years at-risk, person-years and midterm population). Feedback can also be emailed to statsonline@swa. be counted when meeting the following criteria: • Vehicle damage occurs with no bodily injury and results from incidents other than collision. Safety is becoming more and more important to all workers and all companies, and lost time injury frequency rates should be improved in parallel with this increased attention. 9 -. RWI or Restricted Work Injury is (a work-related. In medicine, the incidence is commonly the newly identified cases of a disease or condition per population at risk over a specified timeframe. This means that for every one million hours worked in the facility, there are 40. 64 2. Thus, the solution from the incidence rate definition is: 1 / 50,000 * 100,000 = 2. Using incident reports, figure out the . Thus, the solution from the incidence rate definition is: 1 /. (OSHA requires accident rates to. Multiply the number of accidents per a working hour by 100,000 to calculate the accident frequency rate per 100,000 hours. au. 6. Formula: Event Type: Event Fields: AIFR: All Injury Frequency Rate (No. Save Lives. 5. 200,000 and 1,000 all in use. 1. This is a drop of 22. Same as TRIF. DOWNLOAD HERE: Copy of Data statistics draftV1. Lost Time Injury rate follows a simple formula to indicate your performance. The formula for calculating a company's incident rate is fairly simple to complete: (The number of incidents in a year x 200,000) / the total number of hours worked by all team members in a year = incident rate. Total Recordable Injury Frequency Rate (TRIFR) Thanks Glenn. This measure reflects both frequency and severity, yielding a combined index of total disabling injury (ANSI Z16). The lower the value deduced from the above calculation, the better. It means that the incidence rate of new diagnoses of breast cancer in this population is 2 per 100,000 women per year. This is the current recommended formula by the New Zealand BusinessLTISR means lost time incident severity rate = (days lost because of lost time injuries) x 1,000,000 / worked hours)In 2020, the TRIR at the Caylloma Mine was 5. One of the primary reasons for measuring LTIR is to identify and prevent Lost Time Incidents (LTI) in the workplace. Form OSHA 300 is used to calculate DART rate. In the case that the employee is to be absent for an extended period of time, the employer is to enter an estimate on the report as to the number of days the employee will be absent. Luckily, that's an easy task. Number of work-related injuries × 1,000 / Average number of employees. It provides an idea about the organization’s efforts to protect the workers from work related hazards. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. For example, to calculate the LTIFR, you can use the following formula: LTIFR=(Number of Lost Time Injuries/Total Hours Worked)x200,000. Number of days lost due to injury/illness (annually) x 200,000 /. The formula for calculating lost time injury frequency rate is the number of lost time injuries multiplied by 1,000,000, divided by the employee total. The total number of lost time injuries in a certain period is divided by the total number of hours worked in that period, multiply by 200,000. Sample 1. Incidence Rate: A measure of the frequency with which a disease occurs in a population over a specified time period. Rt= total selected population for the survey. The fatal work injury rate was 3. 39. ). 16%) were fatal injuries and 27,909 (56. Abstract. Before 2012, non-agricultural only. This is calculated by: number of employee RIDDOR injuries / total hours worked x 100,000). How to Calculate Lost Time Injury Rate. TRIFR = { (LTI + MTI + RWI) x 1,00,000} / Hours Worked. ) You can compute the incidence. Slide 18 . 00115 (1. This is how the TRIF is calculated: (# injuries x 200,000) divided by (# hours worked). Severity Rate (S. Table ID: 3K3E9010. 9 . The word recordable is used because not all kind of incident are captured when calculating the OSHA recordable incident rate; only recordable incident. 52The Recordable Incident Rate (RIR) is a mathematical calculation used by OSHA that describes the number of employees per 100 full-time employees that have been involved in an OSHA-recordable injury or illness. 75/297 person-years, write 12. A lost-time injury (LTI) is something that results in a fatality, permanent disability, or time lost from work. This is a 4. This is a 4. An injury frequency rate is the number of injuries per 1,000,000 employee-hours worked. Formula: Event Type: Event Fields: AIFR: All Injury Frequency Rate (No. Based on 4 documents. 000. Lost Tim Injury Frequency Rate (LTIFR) Digunakan untuk mengetahui banyaknya kecelakaan kerja per satu juta jam kerja orang akibat kecelakaan selama periode 1 tahun. In all other cases frequency rate F, should be used for comparison purposes. ([Number of lost time injuries in the reporting period] x 1,000,000) / (Total hours worked in the reporting period) RIFR: Reportable Injury Frequency Rate The Total Case Incident Rate (TCIR) is defined as the number of work-related injuries per 100 full-time workers during a one year period. The lost time injury frequency rate (LTIFR) shows the relationship between the number of injuries that result in lost working time and the total hours worked in the company. 2–79. 06 0. 90 Better than threshold 3. These skin lesions bring pain, associated risk for serious infection, and increased health care utilization. 39). Divide by the result by the total number of hours worked. g. Lost Time Injury Frequency Rate reflections by the late George Robotham – More Pearls of Wisdom Here The Lost Time Injury Frequency Rate is the principal measure of safety performance in many companies in Australia. All you have to do is use this formula: DART rate = (Total number of recordable injuries and illnesses that caused a worker to be away, restricted, or transferred x 200,000) / Total number of hours worked by all employees. The number of reported accidents is derived from your operations, as is the total hours worked, while the number 200,000 is used in a number of safety KPI's to standardise the AFR. 40, compared to 2021. The severity rate calculation from here would be: Severity rate = (25 lost work days x 200,000) / 2,000,000 hours worked = 1 lost day per accident. Why 200,000? 200,000 represents forty hours a week that 100 employees would work for 50 weeks during one year. Notation and terminology: Concepts apply to incidence proportions, incidence rates, and prevalence proportions, all of which will be loosely called “rates. Classification of occupational injuries 25 12. Using the following data calculate the frequency rate of accident. MTI = I / HW * 1,000,000 MT I = I /H W ∗ 1,000,000. 000 jam. 02. Use this formula: LTI Freq. Further work 36 Bibliography 37 Appendix. An index computed by multiplying the disabling injury frequency rate by the disabling injury severity rate and dividing the product by 1,000: DII = DIFR x DISR / 1000. The DART rate. Accident frequency rate is one of the most common safety metrics (along with these other safety KPIs) when measuring a companies performance and progress towards "zero harm". Therefore, the number of new cases at the practice is 46 per year, which makes the incidence 46/40,000 =0. A lost time injury is an injury sustained on the job by worker that results in the loss of productive work time. Lost time injury incidence rate (LTIIR) refers to the number of lost time injuries relative to the number of employees calculated over a specified time period. Most companies choose to calculate LTIFR per 1 million man hours worked. 3. To give you an idea of companies and use cases on the higher end of the total recordable injury frequency rate spectrum, In Australia, the companies with the highest TRIFR in 2017 were WesFarmers (28. 02785 per person-year = 28 per 1,000 person-years. 5 will have had a recordable injury or illness. We’ve got you covered. How to calculate Accident frequency rateHow to cal. For any business, RI is the most important measure of the frequency of harm to workers. See the latest industry incidence rates (OSHA recordable case rates), or calculate a firm's incidence rate by using BLS's incidence rate calculator. The severity rate is the total number of days lost or charged due to accidents per one million man-hours worked. Days Away from Work Cases require the employer to enter the details of the accident, injury or illness on a UW Occupational Injury and Illness Report. Frequency rate = Number of lost time injury × 1 000 000 / Man - hours worked . (Number of OSHA recordable cases x 200,000) / Total number of. MTI is Medical Treatment Injury (a work-related injury that requires treatment by a medical practitioner beyond first aid). Book A Free Demo → Calculating Lost Time Injury Frequency Rate Measuring your LTIFR is actually easier than you think. LTIFR = (14 / 800,000) = 0. = 5/500×2000 x 1000000=5. 1%) were fatal injuries and 20,350 (55. 88 All Injury Frequency Rate Of contributors had identified critical controls for each 82% of its critical risks Of contributors indicated there was no clarity within the organisation about who owns and is accountable for each critical. 7 person-yrs. The Lost time injury frequency rate states the number of lost time injury per 1000000 man-hour, while Lost time injury severity rate explains the severity rate of every lost time injury per 1000000 man-hour. This excludes non injury incidents. of Fatal and non-Fatal Workplace Injuries x 100,000 No. 3. 5. Number of recordable incidents (injuries and illness) per 100 full-time employees. The actual number of lost work days times 200,000 (a standardized estimate of the hours worked by 100 employees) divided by the actual, total number of hours worked by all employees results in the severity rate. The formulae used to calculate the incidence estimate and rate of over 3-day absence injury relating to individuals working in the last 12 months for overall and individual characteristics such as age and sex are given by: Incidence of over-3-day absence injury. 3), Qantas (24. Incident rates are collected on a per-company basis and are then aggregated by industry, demographics, and other. The injury rate per million hours worked has decreased from 4. OSHA defines a lost time case as a recordable incident where an. Sol. The formula gives a picture of how safe a workplace is for its workers. a. risk cumulative. Accident frequency rate is defined as the number of deaths and injuries in occupational accidents × 1000000/aggregate number of human-hours, and accident severity as the number of workdays lost rate × 1000000/aggregate number of human-hours. 1%. The accident frequency rate is expressed as the number of accidents per 200,000 hours worked. 5% from the 2016 DIFR of 9. Further work 36 Bibliography 37 Appendix. 1 in 2018, according to the Bureau of Labor Statistics. Safe Work Australia is proud to announce the full release of our data website, data. Step 3: Apply the LTIFR Formula. All Injury Frequency Rate: This is a measure of all reportable injuries - lost time injuries, restricted work injuries and medical. then, in the frequency formula: F = (12 x 106)/2,189,243 = 5. of Events X Multiplier) / Hours: Injury and/or Illness: Fatality, Lost Time Days, Restricted. 0, with the average TRIR in construction being. 6 fatalities per 100,000 full-time equivalent (FTE) workers, up from 3. 4 × 0. Answer. Rates Lost time injury frequency rate (LTIFR) The number of LTIs (including fatalities) per million hours worked. Of the total number of injuries in 2020, 15,799 (42. Are these formulaes correct. weeks per year, and provides the standard base for the incidence rates. 200,000 represents 100 employees working 40 hours per week. whereas the observed IRD between groups is. Each set combines both employee recordable injuries/illnesses with the DART injuries/illnesses (Days Away from work, job Restricted, and job Transfer). The participants had a median age of 44. 1) Disabling injury frequency rate (the most popular expression of industrial safety performance). LTIFR refers to Lost Time Injury Frequency Rate, the number of lost time injuries occurring in a workplace per 1 million hours worked. 2%) were minor injuries. What is the expiratory time when the rate is. Formula. TRIFR calculation = (Recorded fatalities + LTIs + other injuries x 1,000,000) / Employee total hours worked. 7) and Star Entertainment Group (22. Generally, a good TRIR safety rate would be around 3. : 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) =. E. The formula for calculating lost time injury frequency rate is the number of lost time injuries multiplied by 1,000,000, divided by the employee total hours worked. LTIFR = 2. Divide by the result by the total number of hours worked. Table 7b: Rate of confirmed occupational diseases incidence by selected industry, 2021-2022 Table 7c: Number of confirmed occupational diseases cases by type, 2021-2022. To calculate the incidence rate, we use this incidence rate calculator: Total number of new cases = 1; and; Total population at risk = 50,000.