Rank: Forum user 
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Im currently altering our group stats reporting form and plan on including the AIR as one of the measures. The problem is I cant get an agreement on using 1000 or 100,000. So I was wondering what does everyone else use?
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Rank: Super forum user
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Jason
In the UK we use 100,000. I work for an american corperation in the uk we use number of accidents divided by working hours in the month X 200,000
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Rank: Forum user 
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Jason
We use a multiplier of 100,000.
The larger multiplier ensure the figures gained from the result of the equation are meaningful.
Depending upon the sector you work in, it may prove to be beneficial to ask others in the same area of business as to what they use, this would help if you were to bench mark against peers and compare accident incident rates.
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Rank: Forum user
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It depends what you are measuring. If it is an AIR (Accident Incidence Rate) which measures the rate of accidents compared to the number of employees, then the multiplier needs to be 1000
If you are measuring the AFR (Accident Frequency Rate) which measures the rate of accidents compared to the number of manhours worked - mostly used in the construction industry - then it is 100,000
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Rank: Super forum user
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Roly wrote:It depends what you are measuring. If it is an AIR (Accident Incidence Rate) which measures the rate of accidents compared to the number of employees, then the multiplier needs to be 1000 Why does the multiplier 'need to be' 1000?
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Rank: Forum user
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It does not need to be 1000, but it generally is as it gives a manageable number which is meaningful for a small to medium company. You can omit a multiplier, but you will end up with a very small number such as 0.45 which gives the impression that there is no need to do anything. Use a bigger multiplier and the numbers are not so meaningful
By using a "rate" (number of accidents per 1000 employees) you can compare year on year even though the number of employees may have changed, or use it to compare separate units, departments etc.
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Rank: Super forum user 
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The HSE in UK use the term Frequency rate and and OSHA in USA use Incident Rate, with UK having a multiplier of 100,000 and USA 200,000 and in both cases a divisor of number of hours worked. The USA rate is actually an Incident Rate per 100 employees. The 200,000= 100 employees working 40 hours a week for 50 weeks. Number of hours worked = average no of employees x40 x50. Therefore 200,000/number of hours worked is the equivalent of 100/no of employees. So of you employ 50 workers and have one recordable the IR is 2 but if you have 200 employees it is 0.5. This link is good http://www.healthandsafe...nson/Accident_Ratios.xlsand this one is fun if you like this sort of thing
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Rank: Super forum user
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ACCIDENT RATES
There are various accident rates used to compare accident statistics.
The MOST IMPORTANT FACTOR is to ensure that you use the same multiplying factor (MF) when comparing data
There is no fixed or standard multiplication factor (MF). The choice can be influenced by either the MF used in the data you are comparing or for the purpose trend analysis/projections, the rates have manageable “numbers”, i.e. not having too many zeros or decimal places!
INCIDENT RATE= TOTAL NUMBER OF ACCIDENTS X 1000/NUMBER OF PERSONS EMPLOYED
Definition:- number of accidents per 1000 employees
A factor of 100 000 is used by HSE for the “AIR” i.e. number of accidents per 100 000 employees
Definition:- number of accidents per 100 000 employees
FREQUENCY RATE = TOTAL NUMBER OF ACCIDENTS X 1 000 000 /TOTAL NUMBER OF MAN HOURS WORKED
Definition:- number of accidents per 1 000 000 hours worked
(Note:- Some tend to use a multiplication factor of 2 000 000 as this figure is the hours worked in a year by 1000 employees assuming they work 40 hours per week for 50 weeks in a year)
SEVERITY RATE= TOTAL NUMBER OF DAYS LOST X 1000/ TOTAL NUMBER OF MAN HOURS WORKED
Definition:- average number of days lost per 1000 hours worked
MEAN DURATION RATE = TOTAL NUMBER OF DAYS LOST/TOTAL NUMBER OF ACCIDENTS
Definition:- average number of days lost per accident
DURATION RATE= NUMBER OF MAN HOURS WORKED/TOTAL NUMBER OF ACCIDENTS
Definition:- average number of man hours between accidents
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Rank: Forum user
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I've just been reviewing some Industry (Waste Management and Recycling) Accident statistics which I get sent on a monthly basis. The multiplier they use is x1000.
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