Posted By maysie
Can anybody shed any light on what is the actually used - LTI Rate or AFR - the two seem to be very similar but I can see LTI appearing more often than AFR these days.....

Posted By Pete Longworth
It all depends on what you are trying to measure. If your organisation experiences a lot of minor incidents but very rarely has any lost time incidents then LTIR would be pretty meaningless.
As Merv says one is a component of the other and both are only used for comparison purposes. The problem with either is that they can become skewed quite badly if the data sources aren't roughly comparable. For instance, both are a measure of incidents against time worked. If an area has only a very low number of employees then 1 incident gives an inordinately high frequency rate and could give a false picture.
They are designed to level out the playing field so to speak, but the paradox is that unless the areas being compared are roughly similar then you will always get that type of distortion.

Posted By maysie
Thanks for your help thus far it's making a bit more sense - how would I go about the below?

How would I go about calculating the LTI Rate and the AFR - do I include near misses & dangerous occurences in the LTI rate?