This KPI will help you examine. The calculation is: Total fatal injuries*1,000,000,000/Total hours worked. The employee, as a result of the injury (or disease) is unable to carry on with all the normal duties on the next day or shift, as verified by a medical practitioner. When it comes to LTIs, instead of looking to a lost time injury rate, it’s common to calculate a lost time injury frequency rate (LTIFR). The Lost Time Injury frequency rate (LTIFR) measures the number of lost-time injuries per million hours worked during a single financial year. Use them as general benchmarks for your own organization’s performance. 1 in 2007, the year after the company was formed. Now, let’s use an example to further illustrate: After reviewing and compiling your safety data, you’ve determined that there were six lost time. Home Data and research Industry benchmarking Lost time injury frequency rates Safe Work Australia is proud to announce the full release of our data website,. Lost Time Injury Frequency Rate – the number of lost time injuries that occurred during the reporting period. The severity rate for this company would equal 1 days per incident - so. To work out the LTIFR you multiply the number of lost-time injuries by 1,000,000 then divide that number by the total number of. Data and research. An LTIFR of 7, for example, shows that 7 lost time injuries occur on a jobsite every 1 million hours worked. It could be as little as one day or shift. Multiplying the number makes it easier to interpret. Total recordable injuries rate (TRIR) The number of recordable injuries (including fatalities and LTIs) per million hours worked. Excel does it for me. of lost time injury x 10 / 0 0 0 0 0 Total man hours worked ) 12 Severity Rate- (No. 33 lost time injuries for every one million man-hours worked. 51 in 2020 (the baseline year). 1 in 2018, according to the Bureau of Labor Statistics. The formulae used to calculate the various measures of working days lost are given by: Estimated annual full-day equivalent working days lost. However, the risk of injury and work-related ill health varies across industry, being more likely in some. To calculate your LTIFR, simply plug those numbers into your formula: (6 x 1,000,000) / 2,500,000. It estimated that incidents resulting in at least one shift of time lost cost businesses $3. Determine how much time your business is losing as a result or injuries or illness with the simple Lost Time Incident Calculator. 5 percent to 2. A Lost Time Incident Rate calculator is a standard OSHA metric that calculates the number of incidents that result in time away from work. then, in the frequency formula: F = (12 x 106)/2,189,243 = 5. Number of total injuries (LTI + NLTI) x 200 000. And unlike the lost time injury frequency rate (LTIFR), it includes any injury that has affected the normal course of your operations even if the affected employee has not ceased working. 51 Near Miss Report Frequency Rate 4 Workers Died 16. 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. Get recordkeeping forms 300, 300A, 301. Description. Track safety leading indicators, fatalities, lost time, restricted/job transfer, medical treatment injuries, recordable incident frequency and severity rate etc. Our key metric is Total Recordable Frequency Rate (TRFR) which measures the number of recordable accidents per million hours worked. Access the most extensive library of templates available. Incident Type Near Miss Lag indicator Indicates events that did not result in injury but which have potential to result in injury. Lost Time Injury Frequency Rate • Safety Risk The Lost Time Injury Frequency Rate is the principal measure of safety performance in many companies in Australia. Severity and LTIFR Form - Free download as PDF File. LTIFR will typically be calculated for a specific workplace or project, but it can also be expanded to measure safety in specific regions or industries as well. F. Return to work rate to pre-injury 90%Q4 . Injury Severity Rate The injury severity rate is a standardized statistic that enables comparison, year-over-year, of the number of days. au. 3. By tracking. E. 06, up from 1. Lost time injury frequency rate (LTIFR): This metric measures the. Lost time injuries (LTI) are incidents resulting in injuries that prevent a worker from performing their duties or missing work. Location B with its 250 employees has worked 512,500 hours for the year and has experienced 6 recordable level injuries which gives them an incident rate of 2. 50 Weeks Per Year Incidence Rates are calculated. Sources of data 23 11. KPIs don’t just measure workplace incidents and injuries. For example: A construction company had 14 people suffer lost time injuries at work last year. These measures use standard definitions that may differ from WCB reports. If you require information that is not in the NWISP reports, AWCBC can produce customized lost time injury, disease, and fatality data on request. Nó có thể là ít nhất […]Lost Workday Case Incidence Rate (LWIR): Number of days lost due to nonfatal injuries and/or work-related illnesses per 100 full-time employees. 1. And you also keep track of the impact on productivity. Mặc dù không thể hiện nhiều thông tin hữu ích, nhưng những người quản lý cần những thông tin này để biết về. =. Generally, a good TRIR safety rate would be around 3. While it may be subject to some controversy, the lost time injury frequency rate (LTIFR) is one way to do it. 15 in 2018. Searches were conducted over four databases. you can determine that a machine. 1-866-777-1360 M-F 6am. 48 dis-abling injuries per million employee hours of exposure. Quantity of manhours worked: 365 (# of days) * 12 ( hr/day) * 40 ( employees + contractors) = 175200 manhours. 2. Lost Time Injury rate follows a simple formula to indicate your performance. Search. Now that you’ve successfully calculated. At the Lindero Mine, the LTIR and LTISR increased in 2020 compared to 2019, due mainly to hiring and training plans. Most companies choose to calculate LTIFR per 1 million man hours worked. 4 Serious claims by gender, 2019-20p* Median compensation paid** $11,900 $14,500Lost Time Injury Incident Rate: the number of accidents resulting in lost time per 100 full-time employees in a given time frame; Severity Rate: the number of lost days as compared to the number of incidents experienced by the organization; Total Incident Rate: the number of recordable incidents experienced by a company per 100 full-time. We report safety data from 1 October to 30 September annually. 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. 16 Lost Time Injury Rate = Lost-time cases x 1006. 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. Fortunately, Injury Frequency Rate (IFR) helps employers identify weaknesses within their processes and arrive at solutions to help reduce these risks. or call your local OSHA office. This number equates to 100 employees, who work 40 hours per week, and who work 50 weeks per year. g. Across all industries, OSHA’s average incident. Some state workers'Introduction to survey. Detailed financial and statistical indicators documenting everything from injury frequency and timeliness of claim payment to assessment rates and administration. 4. (Number of lost time cases x 200,000) / total number of hours worked by employees. 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. 83 in 2019, a reduction of 82%. Lost Time Injury Frequency Figure 11 represents a benchmark of the Lost Time Injury Frequency per million man-hours for the Oil and Gas sector, in which the average was 0. 38となり、2022年製造業平均値1. Pros: lost time injury frequency rate for AT employees in the last 12 months albeit the slight increase of LTI in January from the previous month. of WHS performance is illustrated and the clear pitfalls of relying on one-dimensional injury data, such as lost-time injury frequency rates (LTIFR), as an overarching measure of “success” are explored. Result: 2 * 1 000 000 / 175200 = 11. road transport. ([Number of lost time injuries in the reporting period] x 1,000,000) / (Total hours worked in the reporting period) RIFR: Reportable Injury Frequency RateRumus: Average Time Lost Rate = (Number of LTI x 1,000,000) / Total Person-. of Man-hours Worked 4. Classification of occupational injuries 25 12. Work-related fatalities. It could be as little as one day or shift. LTIFR will typically be calculated for a specific workplace or project, but it can also be expanded to measure safety in specific regions or industries as well. Then, the number is multiplied by 200,000 to make it easier to use and interpret. Download it and convince your audience. Using a one-stop safety rate calculator that includes lost. 11 0. LTC Rate. As you can see, there are just three parts of the LTIFR formula, two of which need to be reconciled on your end, and then the 1,000,000 figure which. The limits of lost time injury frequency rates. In Beyond Lost Time Injuries: Positive Performance Indicators for OHS—Part 1: Issues; Australian Government Publishing. 29 0. The formula itself is quite simple, but its implications can be pretty significant. How to Calculate Lost Time Incident Rate. Lost time injury frequency rate (per 200,000 hours worked) 0,22 0,27 0,27 0,25 0,26 Number of lost time injuries 189 228 226 199 206 Permanent Disabling Injury. 35 Total recordable injury frequency rate (TRIFR): contractors per 200,000 hours worked – – 0. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. Menu. 90（厚生労働省統計データより）に⽐べて低くなり. The number of LTI/Ds is divided by the number of employees, then multiplied by 100. au. Most companies choose to calculate LTIFR per 1 million man hours worked. Classification of OSH Incidents 3. Tính LTIIR (Lost Time Injury Incidence Rate) = Tỉ lệ số vụ chấn thương tai nạn, BNN phải nghỉ việc trên tổng số nhân viên. Safe Work Australia performed an analysis based on compensation data from 2012–13. Please note, differences in population, industry mixes, coverage and legislation/policy may affect comparability between jurisdictions. Yet, you could be missing out: many organizations don’t track anything beyond OSHA data, like lost-time and incidence rate. The LTIIR differs from the LTIFR in that the LTIFR calculates the number of LTIs over a given time frame relative to the total amount of hours worked within that time frame, whereas. Ironically Esso’s safety performance at the time, as measured by its Lost Time injury Frequency Rate, was enviable. The result reflects that the company has 3. According to the WSIB, lost time injury rates in Ontario – which were already quite low to begin with – declined by about 39 percent over the last decade, suggesting that employers are making solid progress towards creating safer. R. 0 0 6 11 Frequency Rate -( No. An injury will only be recorded as a lost time injury if it results in time off work, or if the employee is unable to perform their regular duties or has to perform them in. NOTE - An ideal system of accident statistics would take into account every. In 2022, the lost time injury frequency rate (LTIFR) in Japan stood at about 2. The Frequency Rate includes applicable incidents per 1,000,000 man-hours worked. - if time lost is measured Severity rate (days lost per 1’000’000 hours worked): - for cases of temporary incapacity only: days lost as a result of new cases during the calendar year divided by the total amount of hours worked by workers in reference group during the calendar year, multiplied by 1,000,000 Days lost per injury:Biết cách tính toán LTIFR (Lost Time Injury Frequency Rate) và các chỉ số an toàn khác là kỹ năng quan trọng đối với người làm về lĩnh vực an toàn và sức khỏe. Sources of data 23 11. You may use Cal/OSHA's 301: Injury and Illness Incident Report or an equivalent form. Lost Time Injury rate follows a simple formula to indicate your performance. Lost time injuries > 1 week 4. The Lost Time Case Rate is a similar calculation, only it uses the number of cases that contained lost work days. • To convert this to an incident rate, Just substitute the number of employees for the. See Dashboards. 0000175. Further work 36. We report safety data from 1 October to 30 September annually. An LTIFR of 7, for example, shows that 7 lost time injuries occur on. The definition of L. Hal ini salah satunya untuk melihat kinerja program K3 dalam upaya penurunan angka kecelakaan kerja dan penyakit akibat kerja. Safe Work Australia performed an analysis based on compensation data from 2012–13. However, the level of risk involved across different occupations varies greatly. 8 6. IS:3786- 1983 d) It. The Lost Time Injury frequency rate (LTIFR) measures the number of lost-time injuries per million hours worked during a single financial year. The illness rate in 2022 was 45. 3 hours ago. Introducing our Health And Safety Dashboard With Lost Time Injury Frequency Rate set of slides. A. The OSHA Total Case Rate (or Total Recordable Injury Rate) is calculated by multiplying the number of OSHA recordable cases by 200,000, and then dividing that number by the number of employee labor hours at the company. Implement Safety Procedures and. need to have time off (Lost Time Injury) or against the regulator guidelines for notifiable injury (Serious Harm). The topics discussed in these slides are Severity, Total Manpower, Lost Time Injuries Frequency. The difference in these rates, as stated by Safety Risk, is that “a frequency rate is an expression of. LTIFR = (14 / 800,000) = 0. Calculate the Lost Time Incident (LTI) Frequency Rate using this formula: [Number of Lost Time Incidents (LTI) including Fatalities (FTL) multiplied by 1,000,000 and then divided by Total Hours Worked = Lost Time Frequency Rate]. Frequency Rate (LTIFR): is the number of lost time injury (LTI) that occurred over 1,000,000 worked hours. LTIFR calculation formula. อัตราการลาออก (TURN OVER RATE) < 10% / ปี 2. The standard base rate of calculation is based on a rate of 200,000 labor hours. Lost time injury rate: Not applicable: Not applicable: LTIFR: Lost Time Injury Frequency Rate: the number of lost time injuries that occurred during the reporting period. Lost Days defines. However, in May, one of ourLost time injury An injury or illness prevents a person from doing work for 1 to 3 days after the incident. Feedback can also be emailed to statsonline@swa. Historically, frequency measures of injury outcome have been at the centre of work health and safety performance evaluation. Formula number of OSHA recordable cases x 200K / Manhours. In the past year, our consolidated health and safety performance in terms of total recordable incident rate and lost time incident rate increased due to a higher than normal turnover of personnel as a result the COVID-19 pandemic. To work out the LTIFR you multiply the number of lost time injuries by 1,000,000 then divide that number. The definition of L. อัตราความพึงพอใจบรรยากาศท างาน (Employee engagement) > 70% 3. The number of WHS hazards, incidents and accidents reported. Research suggests that there are predictable ratios or 'accident triangles' which describe the relationship between lost time injury rates and the incidence of events such as minor injuries and non-injury accidents 3. LTIFRs are useful for drawing conclusions. 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. Key performance indicators (KPI) These include: number of fatalities, fatal accident and incident rates, lost time injury frequency and total Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. 2. Occupational Health and Safety Report: Quarterly and Year-End 2020 Page 3 of 6 . Incidence rate — the number of injuries per 1,000 employees for a 12 month period. A lost-time injury is one that. Lost Time Injury Frequency Rate: the number of lost time injuries that occurred during the reporting period. Lost time injury frequency rate* * 休業度数率＝休業災害発⽣件数÷延べ実労働時間×1,000,000 休業1日以上の労働災害を休業災害と定義 Lost time injury frequency rate = Number of work accidents resulting in one or more days of work absence / total actual working hours × 1,000,000 労働安全衛生Lost Time Injury Frequency Rate (LTIFR) • Is a principle measure of a safety performance in many companies and it has two main component 1. 1 percent to 460,700 cases in 2022. 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. Lost time injury refers to an injury sustained by an employee at work that results in absenteeism or a delay in the normal workload performed by that employee. Internal WHS audits conducted as per schedule . A Lost Time Injury is a work injury or disease where the injured party has. 95 2. Formula. 22 1. • Lost Time Injury Frequency rate: 0. 0 to 3. LTIFR = (14 / 800,000) x 200,000 = 3. (Lost Time Injury Frequency Rate. Mechanism 11. Lost time injury frequency rates. The figure 200,000 is a standard number to measure incident rates so companies of varying sizes can be compared. They include all Class 1 and Class 2 events. Employee Labor Hours Worked. A Lost Time Injury is a work injury or disease where the injured party has. Sorry I meant to say its the incidence rate not frequency rate. Step 3: Divide the number of LTIs by the total number of hours. The Lost Time Injury Frequency Rate is the principal measure of safety performance in many companies in Australia. safeworkaustralia. 4. for short-term. Lost Time Injury Frequency Rate – the number of lost time. 1 / million work hours (8. Unlike your company's total injury rate, DART represents only the incidents that have had an impact on workplace activities. Toggle Nav. Contoh: Suatu perusahaan dengan karyawan 15. So, if you have 8 lost time injuries and 3 million hours worked, your LTIFR is 2. As you may have noticed, the. Sources of data 23 11. lets take a random month where I work. This figure was determined by multiplying 100 employees by 40 hours (a standard work week) by 50 weeks (assuming each employee takes two weeks of vacation). • A worker has completely recovered from a previous injury or illness. and notable reduction in the Lost Time Injury Frequency Rate (LTIFR) over the past decade. For example, let’s imagine there were six lost time injuries in the past year at your company and a total of 2,500,000 hours worked. Participating IOGP member companies reported 580 lost work day cases (injuries resulting in at least one day off work). 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. There are two ways of reporting lost time: lost time injuries, which refer to the subset of work-related injuries that result in ‘lost time’ due to work absence, and lost time injury frequency rate, which is defined as the number of lost time work-related injuries (fatalities. 0 or under as the average TRIR across the board was 3. 4. 2 cases per 10,000 full-time equivalent workers compared to 37. performance. Safe Work Australia is. Table: WHS Reporting Mechanisms for the University of Wollongong . 11 Lost-time. 4. Classification of occupational injuries 25 12. Occupational injury 1 6 Fatal occupational injuries 1 6 Time lost 1 6 7. The almost universal definition of an LTI is a work related injury that results in the injured employee having at least one full shift off work – by definition this excludes the shift on which the injury happened. Lost time injury: A lost-time injury is defined as an occurrence that resulted in a fatality, permanent disability or time lost from work of one day/shift or more. Injury Data and Statistics Spreadsheet. Lost time injury rate is a calculation used to determine the frequency of lost time injuries (LTIs). Preliminary fatalities - 2023. To work out the LTIFR you multiply the number of lost time injuries by 1,000,000 then divide that number by the total number of hours worked in an organization. Comparison of injury rates over time or industries can identify if the risk has increased, decreased or remained stable over time. OSHA-specific statistics on data and time-series information is monitored through the OSHA Office of Statistics; fatalities in. LTIFR = (14 / 800,000) x 200,000 = 3. 09 in 2019. 2. [Source: Self-reports from the Labour Force Survey]. An LTIFR of 7, for example, shows that 7 lost time injuries occur on a worksite every 1 million man-hours worked. The costs. 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 simpler, consider the following example:. For example, let’s imagine there were six lost time injuries in the past year at your company and a total of 2,500,000 hours worked. 3 Disabling Injury ( Lost Time Injury ) - An injury causing dis- ablement extending beyond the day of shift on which the accident occurred. 90（厚生労働省統計データより）に⽐べて低くなり. Incident frequency rate Completed corrective action. Telephone Toll-Free: 1-855-282-9222 or 416-581-8875. El Chanate deserves special mention for achieving a new safety record of 2,000 days without a single lost time injury. safety managers will use information from the calculated incident rate to monitor injury frequency or illnesses and discover where safety programs are falling short. LTIFR Lost Time Injury Frequency Rate Lost-time injury frequency rates refer to the number of lost-time injuries within a given accounting period, relative to the total number of. Used correctly, your KPIs can help you prevent them. It provides an accurate representation of the frequency and severity of workplace injuries and is commonly used in various industries to assess. In 2023, 94 steel companies and associations contributed to the data collection. 1560 hours) D = Total hours of vacation (17 days), sick leave (10 days), holidays (12 days) and any other non-work time. Download it and convince your audience. Research by industry or topic. The Lost Time Injury Fatality Rate calculator can now be seen on the Data website. The number of LTI/Ds is divided by the number of employees, then multiplied by 100. 4 6. 59 €. An average of 44. How to Calculate Lost Time Injury Rate. T. The key difference is LTIFR is calibrated to one million hours. Lost Time Injury Rate = Lost-time cases x 200,000 Employee hours worked = 2 x 200,000 2,424,705 = 0. 2. 2020 Performance . Safety Dashboard Excel Template. Lost Time Injury Frequency Rate: the number of lost time injuries that occurred during the reporting period. 55 in 2006 to 0. Safe Every Day program. Two of our mines received national recognitionLTISR 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. Lost Time Injury Frequency Rate (LTIFR) is defined as the number of lost time injuries per 200,000 hours of work. 06 0. This is an immediately available PowerPoint presentation that can be conveniently customized. DIFR Calculator = Number of incidents multiplied by 200 000 hours divided by the actual number of hours worked. Total Recordable Incident Frequency Rate (TRIFR) Lost Time Injury Frequency Rate (LTIFR). T. 68 as compared to 4. 333. Lost Time Injury Frequency by Service Area are reported in Appendix B. The Lost Time Injury Fatality Rate calculator can now be seen on the Data website. Although our Lost Time Injury Frequency Rate statistics are promising, an integrated focus, including leading and lagging indicators, ishave been lost time injury frequency rates (LTIFR), fatal injury frequency rates (FIFR) and disabling injury severity rates (DISR). Essentially the same calculation as LTIR but rather than calculating per 200,000. 1. Dissemination 21 10. Lost time injury frequency rates (LTIFR) Lost time injury frequency rates are one measure that can help you compare part of the work health and safety performance of our organisation again. Restricted Work Incident Frequency Rate (Number of RWI's / Hours) * 1,000,000. LTIFR calculation formula. As you can see from the above formula and calculation, a low severity. 4. The industry uses a key metric called LTIR (Lost Time Injury Rate). More on 10 Sure Fire Ways To Stuff Up a Safety Management System What is the Lost Time Injury Frequency Rate (LTIFR) LTIFR Formula; How To Calculate Lost Time Injury Frequency Rate (LTIFR) With Example; How To Reduce Your Lost Time Injury Frequency Rate (LTIFR) 1. Injury cases increased 4. 4 And voila! Your company’s LTIFR is 2. By law, OSHA requires most employers to maintain an OSHA 300 Log. • To convert this to an incident rate, Just substitute the number of employees for the number of hours • 2. The Lost Time Injury Frequency Rate is the principal measure of safety performance in many companies in Australia. Duration rate — the average number of work days lost per injury. Get Form. 00. The website delivers national work health and safety and workers’ compensation data in an intuitive, user-friendly way. 1 billion (44% at constant currency). The resulting figure indicates the number of employees who lost time due to an incident. The severity rate for this company would equal 1 days per incident - so on average, each incident results in one day off work. 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. 30 by Dec. LTIFR. #hsestudyguideThe Injury Severity Rate formula is defined as a safety metric which companies use to measure how critical the injuries sustained in a period of time where by using the number of lost days (on average) per accident as a proxy for severity and is represented as R i = D l *1000/ N mh or Injury Severity Rate = Lost Days *1000/ Man Hour. 99 €. In the US, this is mostly. With a simple calculation, LTIFR is 3. The injury rate per million hours worked has decreased from 4. The use of. F. 29 1. LTIFR will typically be calculated for a specific workplace or project, but it can also be expanded to measure safety in specific regions or industries as well. Lost time injury frequency rates’ (LTIFR) are used to calculate how a company health and safety system is performing, by calculating the number of LTIs multiplied by 1 million. ([Number of lost time injuries in the reporting period] x 1,000,000) / (Total hours worked in the. Lost time injury frequency rate (LTIFR): This metric measures the. % Total recordable injury rate (TRIFR): The frequency rate of RIs (TRIFR) is calculated when a business needs to compare RI performance across businesses of different sizes. of Fatal and non-Fatal Workplace Injuries x 100,000. incidence rates; c) It has given more comprehensive coverage to classification of accidents; 3 . Are you using this - Number of reportable injuries x 100 000 divided by the totoal number of hours worked. Examples are lost-time injury rates, modified work injury rates and disability injury rates. Classification of occupational injuries 25 12. 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. 00 1. 33 for the above example. 0. Injuries to other personsLTIFR or the lost time injury frequency rate is a safety measure which refers to the number of lost time injuries occurring per 1 million hours worked. hours Worked Atau Average Time Lost Rate = ( Frekwensi Rate) / Severity Rate. FR (Frequency. This is the number of lost time injury and disease claims lodged where one day or shift or more was lost from work. Total recordable injury frequency rate (TRIF) is defined as the number of recordable injuries per 200,000 hours of work. Reviewing documented recommendations with the relevant Line Manager/Supervisor so that all areUsing this TRIFR calculation formula, the result is the total recordable injury frequency rate. Provides access to statistics on work-related ill-health, injuries, dangerous occurrences, enforcement and gas safety produced by HSE's Statistics Branch. 9% in 2022. RWI or Restricted Work Injury is (a work-related. The frequency is how often incidents occurred, while the severity is measured using the number of days of work lost. Lost time injury frequency rate calculator (LTIFR) Rate (MTIFR) – Rolling 12 months 2.