Ok, I really should know the answer to this but for some reason it hasn't stayed in my brain.... I need to state the accident frequency rate of our business per 100 employees, I also need to do the same for the AIR. Could someone please give me the appropriate formulae? Many thanks!

There are various accident rates used to compare accident statistics. The important factor is to ensure that you use the same multiplying factor as used in the data you are comparing. 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 ( i.e. accidents per 1000 employees ) 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 (i.e. number of accidents per 1 000 000 hours worked) Definition:- number of accidents per 1 000 000 hours worked [Note:- Some tend to use a multiplication factor of 2 000 000 ( or 200 000) as this figure is the hours worked in a year by 1000 ( or 100) employees assuming they work 40 hours per week for 50 weeks in a year)