Take the number from Step 3 and divide it by the number from Step 2. For example, If the number of accidents per year is 145 then 145 / 112,000 = 0. 7% higher. Increased rate by 6% since 2014 U. 4 per 100,000 FTE in. about costs is an important supplement to epidemiological data, such as the incidence and mortality rates. The total injury incidence rate was 70. TRIFR calculation = (Recorded fatalities + LTIs + other injuries x 1,000,000) / Employee total hours worked. which does not result in a disabling injury but which. In 2013, one in five reported nonfatal occupational injuries occurred among workers in the health care and social assistance industry, the highest number of such injuries reported for all private industries (). Step 3: Apply the LTIFR Formula. The Lost time injury frequency rate ( LTIFR) calculator is a data tool that helps you compare one aspect of the work health and safety performance of your organisation against industry benchmarks. 2,9 These injury rates are similar to published rates for recreational tennis players (1. nestle splash water dollar general. population of. Read More. 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. 000322 (incidence) To calculate the incidence rate per 100,000 in this example: 0. 38 1. 01A company that has 2000 staff (employees work a regular 40-hours workweek). An incident rate calculates the number of recordable incidents per hour worked. Injury frequency rate can be calculated by the following formula: The formula for doing this calculation is: (Medical treatment injuries x 1,000,000) / total hours worked = MTI frequency rate. If the employee has the following day off, then the injury is classified as a lost time injury. Total injury incidence rate = ((2+1) x 200,000) / (25 x 2000). What is medical treatment? Medical treatment includes managing and caring a patient for the purpose of combating disease or disorder. It found considerable variation depending on the selection of the denominator. 60 in FY21. Mortality was 1%. Calculate Injury/Illness Rates. 2. Using this standardized base rate, any company can calculate their rate(s) and get a percentage per 100 employees. 3), Qantas (24. K. (Learn more about Calculating Your Company's Lost Time Injury Frequency Rate) How to Calculate Your DART Rate. 10 to 5. Press Enter or Ctrl + Shift + Enter. Safety observations frequency rate (SOFR) The number of safety observations per 200,000 hours worked. during the year, there are seven first-aid cases, three medical-treatment injuries, an accident in which an injuried employee was required to work 1 week in restricted work activity, a work-related illness in which the employee lost 1 week of the work, a work-related illness in which the employee lost 6 weeks of work, and. The calculation is: Total Fatal Injuries*1,000,000,000/Total Hours Worked. 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. 2. How to calculate TRIR? TRIR calculations reflects the number of recordable injuries per 100 full-time workers during a one-year period. 8: ‘Protect labour rights and promote safe and secure working environments for all workers, including migrant workers, in particular women migrants,. Definition. Patients who develop an. Issue: Pressure injuries are significant health issues and one of the biggest challenges organizations face on a day-to-day basis. Results Globally, in 2017, there were 7 538 663 (95% uncertainty interval 6 116 489 to 9 493 113) new cases, 1 819 732 (1 609 419 to 2 091 618) prevalent cases, and 117 402 (73 266 to 169 689) YLDs due to facial fractures. In many countries, the figure is typically calculated per million hours worked. In 2011, U. This is the number of injuries per million hours worked. A single injury or illness has a much greater effect on incidence rates in small establishments than on larger. This formula is used to calculate an organization's TRIFR: TRIFR = {(LTI + MTI + RWI) x 1,00,000} / Hours Worked. 2. Total number of occupational injuries. 84 1. After reviewing and compiling your safety data, you’ve determined that there were six lost time injuries in the past year at your manufacturing company and a total of 2,500,000 hours worked. Lost time and disabling injury frequency rate The number of lost time injuries/diseases and disabling injuries per million hours worked. In some country, the first aid injury frequency coefficient (F) h determined by. If you need help calculating your company's OSHA TRIR rate, please call (720) 547-5102. ) 1. TRIR Deliberation: Learn learn how to calculate get Total Recordable Incident Value. INTRODUCTION. safeworkaustralia. 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. The time off does not include the day of the injury. 9 per 1000 hours of dance exposure is in contrast to the injury incidence rate of 4. Fatalities 2. 1. Absolute differences ranged from 4. A lost time injury is an injury sustained on the job by worker that results in the loss of productive work time. 6% of global crude steel production. For example, if you you were to calculate the frequency rate of lost time injuries (LTI's), you would first find the number of lost time injuries in the reporting period, multiple that by. 2. 001295. 4. Injuries resulting from falls or being struck by/against an object accounted for more than 44%. 6% Stage 1 incidence % of Total PI 16. A recordable incident is any work-related injury and illness that result in death, loss of consciousness, days away from work, restricted work activity, transfer to another job, or medical treatment beyond. 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 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. It is an indicator of the state of health and safety at a workplace. 39Background Statistical methods for the analysis of harm outcomes in randomised controlled trials (RCTs) are rarely used, and there is a reliance on simple approaches to display information such as in frequency tables. 3 Even when using the lower. 2. An analysis of data from worker’s compensation claims in California, Florida, Massachusetts, Minnesota and Oregon over a five-year period found that the incidence of. 4 lost time injuries for every one million man hours worked. Safe Work Australia is proud to announce the full release of our data website, data. After reviewing and compiling your safety data, you’ve determined that there were six lost time. 000 Jumlah total jam kerja. f 10. Appendix B outlines the recordability of medical aid cases versus first aids cases. 5-5. (a) Calculate the general injury–illness incidence rate. For example: A construction company had 14 people suffer lost time injuries at work last year. The average annual injury incidence rate was 313 per 100,000 snowmobiles registered. Advanced Safety Dashboard Excel Template. This might also be written as 5. Incidence rate = (Total number of recordable incident) x 200,000 / (Total manhour worked for one. Global TBI Incidence and Prevalence. 0-5. Using this TRIFR calculation formula, the result is the total recordable injury frequency rate. 000 jam. Design. Then use the tool below to calculate your company’s rate. 1 per 1,000 average incidence across all acute care facilities2 10‐20% average incidence across critical care units. Menghitung angka-angka kecelakaan menurut Dainur (1992), yang meliputi: a) Angka frekuensi kecelakaan kerja (Frequency Rate) FR = Banyaknya kecelakaan x 1. : ABC Manufacturing Company’s Frequency Rate is 40. The 2020 DIFR for the federal jurisdiction is 7. Monthly injury incidence rate for middle and long-distance runners was highest in October (26. 2. Q1 ) A firm has 200 employees. 1 in 2018, according to the Bureau of Labor Statistics. Setting. 1 0. 12. The formula for calculating the severity rate is: Severity Rate = (Number of Lost Workdays + Number of Restricted Workdays) * 200,000 / Total Hours Worked. 32 cases per 100,000 . in the total recordable injury rate (3. Divide the total number of lost time injuries in a certain time period by the total number of hours worked in that period, then multiply by 200,000 to get the LTIR. 3 Severity boundary for injuries 8 2. 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. 39). 2 missed games per club per season. Frequency rate ( called in French “ taux de fréquence “) is the number of occupational accidents with leave for 1 000 000 worked hours. 1 per 1000 hours. This number equates to 100 employees, who work 40 hours per week, and who work 50 weeks per year. 1. 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. au. Injury burden and spending. accident frequency rate calculation excel; accident frequency rate calculation excel. Medical treatment injuries; If you calculate each of these categories individually, then you can roll them into the AIFR rate to calculate. Calculate the injury incidence rate and the LWDI. For example, if you you were to calculate the frequency rate of lost time injuries (LTI's), you would first find the number of lost time injuries in the reporting period, multiple that by. We aimed to identify whether any statistical methods had been specifically developed to analyse prespecified. For the year a firm with 30 employees has two injuries, one of which involved lost workdays, and four illnesses, all of which involved lost workdays. Lead Exposure - The breakdown of lead workers under medical surveillance (. 15,16 MTO : Medical Treatment Only RWTC : Restricted Work/ Transfer Case LTI : Lost Time Incidents FTL : Fatality Grafik 5. 3% of patients with missed injuries have clinically significant missed injuries. 15 3. To calculate the TRIFR in Australia, we divide the number of recordable injuries in a 12-month period, by the number of hours worked by all staff in the same 12-month period, then multiply this figure by one. Frequency Rate is the total number of disabling injuries per million-employee hours of exposure. In addition, although CDC estimates are adjusted for it, the importance of underreporting must be acknowledged. Number of injuries. MTI: Medical Treatment Injury Frequency Rate (injuries per million hours) I: Total number of injuries over the time period; HW: Total hours worked; Example. The rate can be calculated using lost time injuries, and compared to the calculation using medical treatment injuries. 29 1. These formulas are used to calculate other safety indicators as well as LTIFR there are Medical Treatment Injuries (MTI), another is significant injuries which are often categorized as LTIs plus MTIs. The standard base rate of calculation is based on a rate of 200,000 labor hours. Please visit the website and fill out the short online. Medical Treatment Injury Frequency Rate Formula. These differed from 15. The lost time injury rate (LTIR) is calculated using a simple formula, where the total number of lost time injuries in a given period is divided by the total number of hours worked in that period and then multiplied by 200,000. Blog ini berisi informasi tentang Keselamatan dan Kesehatan Kerja dan Lindungan Lingkungan. The formula is as follows: ( [Number of lost time injuries in the reporting. The knee, shoulder, and elbow are the anatomical locations most prone to. Lost time injuries 1. 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. ” (Each case should be counted only once. At Ecesis, we have easy-to-use, EHS software and a mobile app that helps you manage, track, and report incidents. Incident Type Near Miss Lag indicator Indicates events that did not result in injury but which have potential to result in injury. 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 formula can also be multiplied by 1,000,000 to get the injury frequency. 26 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. 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. 1%) were fatal injuries and 21,176 (57. Stage of the deepest injury. 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. 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 MTIThe 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. [ 34 ] and Trompeter et al. as Lost Time Injuries, but any days lost or time on restricted duties are not included for severity rate calculation purposes. 33 0. It would be a mistake to say establishments with the highest rates in these files are the "most dangerous" or "worst" establishments in the nation. (2) ‘Disabling Injury” shall mean a work injury which. For every person dying as a result of injury, there are hundreds more that sustain non-fatal injuries and other health consequences. Total Industry Incidence Rates IADC 1994-201015The injury rate per 1000 exposure hours was 2. The lost time injury rate (LTIR) of an organization, a jobsite, or a department is calculated using a simple formula. 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. 056 sharps injuries per FTE . How to Calculate Your LTIR. 2 Determining injuries vs diseases 10 3. Total Case Incident Rate (OSHA Recordable Incident Rate) TCIR. 3 Medical treatment vs first aid 11 3. 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. The company has a total of 342 employees, so we can calculate the engagement rate for February as 34 ÷ 342 x 100% = 9. 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. In the latest years for which data were available, injuries in Australia accounted for: 8. 6% of total injuries). Medical treatment facilities include emergency room visits and/or in-patient hospitalization. Other terms commonly used are slipped disc, ruptured disc, prolapsed disc. 91% of the total)), and bone fractures (49 injuries (9. The NSI incidence rate was calculated as the annual number of cases with NSIs per 100 occupied beds, according to the demographic characteristics of the injured person, place, timing, device, and the patients’ infectious status. TRIR Calculating: Learn about whereby to reckon choose Total Recording Accident Pricing. Exposure It shall mean the total number of employee-hours worked by all employees of the reporting establishment or unit. Incidence rates are calculated using the total case counts obtained through the weighting and benchmarking procedures described above. Slide 21The U. Preventing pressure injuries . The formula for doing this calculation is: (Medical treatment injuries x 1,000,000) / total hours worked = MTI frequency rate. total recordable injury rate; lost time injury frequency;. Your OSHA 300 Log and 300A Summary will have the information needed to find your rate of recordable injuries. Non-disabling injuries (medical treatment): Disability which requires first-aid or medical attention of any kind and which does not result in lost workdays. Lost time frequency rate (LTIFR) shows the average number of injuries occurring over 1 million working hours. (termed recordable injuries) to hours worked. 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. Fourth, approximately 27–66% of unrecognized diagnoses in studies were major injuries. Just a different variation of KPI’s (lower area) The hours must be entered in on the hours row they will automatically update rolling average of hours. The standard base rate of calculation is based on a rate of 200,000 labor hours. To calculate to TRIFR in Australia, we divide the number are recordable injuries in a 12-month period, by the number of hours worked according all staff in the alike 12-month period, then multiply this figure. 3 Medical treatment vs first aid 11 3. To calculate your LTIFR, simply plug those numbers into your formula: (6 x 1,000,000) / 2,500,000 to get a LTIFR = 2. Occasionally, an MTI recorded in one month will convert to an LTI in a later month due to changes in circumstances/treatment required. 0/1000 hours of exposure (lowest) when a medical attention injury definition was utilised. Also the OSHA injury/illness incidence rate applies to all work-related injuries/illnesses which require medical treatment, whereas the traditional frequency rate related only to "lost- time" cases. JURNAL K3LL. (b) LWDI rate. (b) LWDI rate. A death as a result of a work-related incident. The formula for doing this calculation is: (Medical treatment injuries x 1,000,000) / total hours worked = MTI frequency rate. Rates Lost time injury frequency rate (LTIFR) The number of LTIs (including fatalities) per million hours worked. However, HSE gave up quoting injury rates per hours worked years ago - now they use per 100,000 full time employees. done by calculating exposure-adjusted incidence rate, 100-patient years. Illness resulting in one week loss work day = 1. For example, if all your employees during last year worked for a total number of hours equal to 2,000,000, and your number of recordable injuries is 2: TRIR = (2 × 200000) / 2000000 = 400000 / 2000000 = 0. 4 and 14. S. Safety pyramids can be used to compare the shape of a company’s incident triangle. Lost time and disabling injury frequency rate The number of lost time injuries/diseases and disabling injuries per million hours worked. 15) and lost time injury frequency (1. 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. 61 1. For the 95 companies that further analyzed major injuries in their reporting, the ratio was one lost time injury per 15 medical treatment injuries. , 2019). Once they return to work,. Fuller et al. Where: Severity Rate is the rate that indicates the severity of workplace injuries and illnesses. In recent years, attention has been focused on the prevention and treatment of sports injuries. Total Recordable Injury Frequency Rate Name. Incidence rate calculation. 77 1. Calculating Lost Time Injury Frequency Rate The formula is as follows: ([Number of lost time injuries in the reporting period] x 1,000,000) / (Total hours worked in the reporting period). Question: er 2 Development of the Safety and Health Function 2. So the incidence rate of relief was 6/85 person-hours or on average 7. 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. High costs involved in a certain injury category and/or age group are an argument for policy. We would like to show you a description here but the site won’t allow us. The injury required medical treatment, and John had to take time off work to recover, which impacted both his well-being and productivity in the workplace. TRIFR is shown as the 12-month moving. • Total Injury Frequency Rate (TIFR). Classification of occupational injuries 25 12. 39 1. 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. Document the results of the skin assessment on every patient with a standard form, noting the following: Presence of an injury. Number of Lost Workdays represents the total number of days employees were unable to work. The overall injury incidence rate for all athletes was highest in October (22. 88 3. The formula for calculating Lost Time Injury Frequency Rates is very simple. Generally, a good TRIR safety rate would be around 3. 2. This is a decrease of 288 total injuries from 2020 (37,024). Medical Treatment Injuries 2. 36Definition. , 2011 ). 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. F = (Number of First-Aid injury x 1000. 6-3. The formula can also be multiplied by 1,000,000 to get the injury frequency. found an incidence rate of 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. See the latest industry incidence rates (OSHA recordable case rates), or calculate a firm's incidence rate by using BLS's incidence rate calculator. S. 2013) tools are two such efforts. supplies, evacuation assets, and staffing for theater-level medical treatment facilities (MTFs). SR is the total number of lost workdays per year × 200000 work hrs/number of workers in a job. 5%. 49 3. Loss Time Injury Frequency Rate Jumlah cidera atau sakit akibat kecelakaan kerja dibagi satu juta jam kerja Severity Rate Waktu (hari) yang hilang dan waktu pada (hari) pekerjaan alternatif yang hilang dibagi satu juta jam kerja Total Recordable Injury Frequency Rate Jumlah total cidera akibat kerja yang harus dicatat (MTI, LTI & Ciderathen, in the frequency formula: F = (12 x 106)/2,189,243 = 5. 0 Man-days Lost5 544,664 417,063 KEY FACTS No. 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 The 200,000 is the. The incidence rate may be calculated both for lost-time injuries and reportable lost-time injuries as follows:This is Part 2 in a 3-part series dissecting the 2016 Citi Research Safety Spotlight Report. MTI: Medical Treatment Injury Frequency Rate (injuries per million hours) I: Total number of injuries over the time period; HW: Total hours worked; Example. Each company's DART rate will be included in that log. This is a measure of all reportable injuries - lost time injuries, restricted work injuries and medical treatment cases - per 200,000 hours worked. Traditional calculation methods are difficult to. Injury. Calculate the injury incidence rate and the LWDI. To calculate the incidence rate, we use this incidence rate calculator: Total number of new cases = 1; and; Total population at risk = 50,000. MTI = Medical treatment. Bureau of Labor Statistics to compare your rate with the same business group. 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. This includes the cumulative hours worked by all. 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. Formula. Two things to remember when totaling. Each year, more than 2. Frequency Rate Lag Lost Time Injury Frequency Rate2. A medical treatment case is any injury. comparable across any industry or group. 1 See Target 8. 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,. 38 0. Divide by the result by the total number of hours worked. Jumlah lembur 20. 000. 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. Some organizations might introduce other HSE metrics like the total recordable injury rate (TRIT) where the numbers of restricted work cases (RWC) and medical treatment cases (MTC) get added to the number of lost time. The time off does not include the day of the injury. And, the overall lost time injury rate (LTIR) (fatalities and lost work day cases) was 0. The number of disabling (lost time) injuries per million employee-hours of exposure: DIFR = Disabling Injuries x 1,000,000 / Employee-hours of exposure. It is sometimes also. 4 and 14. 82 3. , 1999 ; Keogh et al. "Incidence rates" are the number of injuries in a category times. 8% in our study population can be compared only to the 6- and 12-month injury incidence rates reported. Near missIncidence rate of injury in tournament football. Step 2: Determine the Total Hours Worked. 2. 5%) were disabling injuries, 44 (0. 1 medical treatment cases per 1,000,000 hours worked. Preventable adverse events are a leading cause of death in the United States. In other words, they create whole numbers people can easily understand. This results in an elevation of serum blood urea nitrogen (BUN), creatinine, and other metabolic waste products that are normally excreted by the kidney. 73 2. A good TRIR is less than 3. If the employee has the following day off, then the injury is classified as a lost time injury. Combat service support units reported injuries in this study at 65. TRIFR = { (LTI + MTI + RWI) x 1,00,000} / Hours Worked Were, LTI is a Lost Time Injury (a work-related injury resulting in the loss of one or more complete. There are many ways to measure fall and fall-related injury rates. 5% (n = 283) after major lower extremity amputation in a group of primarily diabetic patients. When calculated over a short period of time, the risk and the incidence rate will be rather similar, because the influence of loss to follow-up and competing. 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. 60 in FY21. Calculating TRIFR. 1052: Special Provision: 1052. include estimate to calculate the im pact of injury . and calculations of seasonal incidence rates were conducted. High Incidence Rate in Facilities 2. Objective. 39Figure 2: Total Recordable Injury Frequency Rate 2017-2022. : 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. Let’s say you have. 27 A firm has 62 employees. occupied bed days. 0 Minor Injury rate 376 329 Occupational Disease Incidence Rate4 14. Downer’s Total Recordable Injury Frequency Rate (TRIFR) for FY22 was below target at 2. 92 3. These speeds, and the nature of collision sports lead to musculoskeletal injuries at all levels of ice hockey [1,2,3]. Frequency Rate is the total number of disabling injuries per million-employee hours of exposure. In addition, if urine output is also diminished, fluid retention and volume. 3. 6 fatalities per 100,000 full-time equivalent (FTE) workers, up from 3. Incidence rate digunakan untuk menginformasikan kita mengenai prosentase jumlah kecelakaan yang terjadi ditempat kerja Rumus: Incidence Rate = ( Jumlah Kasus x 100) / Jumlah tenaga kerja terpapar. Measuring pressure injury prevention practices. The rate can be calculated using lost time injuries, and compared to the calculation using medical treatment injuries. Injury Classification Guidelines, Curtin University. It’s common to use a Lost Time Injury Frequency Rate calculator to understand the impact of Lost Time Incidents on your company.