Hi,
I have calculated absolute excess risks of death in a cohort of people
with cancer by calculating the observed (O) and expected (E) deaths
,and using the formulae:
AER = ((O-E)/person-years) * 10,000
This gives me the excess risk per year per 10,000 persons. I have done
this for various age groups and would like to use a test for trend to
see whether there is a significant increase in the risk. How do I do
this in STATA? I probably should use an additive model, but where can
I find more information? Hope this is clear.
With many thanks,
Raoul
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