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st: R: Adjusting prevalences


From   "Carlo Lazzaro" <carlo.lazzaro@tiscalinet.it>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: R: Adjusting prevalences
Date   Mon, 8 Jul 2013 12:56:48 +0200

As far as 2nd Miguel Ângelo's question is concerned, he can probably benefit
from taking a look at: 

 [R] poisson -- Poisson regression, by typing - help poisson - from within
Stata.

[R] poisson entry is included in Stata 12.1 .pdf manual.

Kind regards,
Carlo
-----Messaggio originale-----
Da: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Miguel Ângelo
Costa
Inviato: lunedì 8 luglio 2013 12:25
A: statalist@hsphsun2.harvard.edu
Oggetto: st: Adjusting prevalences

Hi,

In the data analysis of an epidemiological cross-sectional study I'm
calculating prevalences.

The dataset is pretty standard. Something like this:

patnumber    sick (1-sick 0-nonsick)    disease-stage    risk-factor-1  
 risk-factor-2    risk-factor-3    age    
0001    1    1    1    0    1    60
0002    0        0    0    1    80
0003    1    2    0    0    0    75
etc...


I have been making two way tabulations to calculate frequencies of disease
per age categories and disease-stage per age categories, etc... and then
calculating prevalences semi-manually with matrices.

question 1: Do you know of any Stata module that can facilitate this?
questino 2: I want to adjus the prevalences for risk-factors and age...how
would you do it?


Thank you for your help

Best regards
Miguel Ângelo Costa 		 	   		  
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