st: Adjusting prevalences

[Miguel Ângelo Costa <miguelangelocosta@gmail.com>]

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 		 	   		  
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/