Raoul asked:
Are there any good websites or books out there that explain in detail
how to calculate a standardized mortality ratio (SMR) with poisson
regression using external rates? I find that the STATA manuals do not
contain a lot of information regarding this topic, any suggestions?
----
I wrote, among other things:
You may proceed from here to -poisson-; it requires the expected number
of deaths:
. gen edeaths = pyrs*mrate
. poisson _d exposure(edeaths) , irr
----
- and that was wrong. The -poisson- command should be:
. poisson _d , exposure(edeaths)
To obtain the SMR, use -lincom- after -poisson-:
. lincom _cons , irr
I hope this was not too confusing.
Svend
__________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone: +45 8942 6090
Home: +45 8693 7796
Email: [email protected]
__________________________________________
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