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Re: st: Stcox Predictions


From   "Svend Juul" <SJ@SOCI.AU.DK>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Stcox Predictions
Date   Thu, 23 Jun 2005 23:48:33 +0200

Albert Lee wrote:
 
"I have just estimated an Cox PH model and would like to calculate the
hazard, i.e., h0*exp(xb), not the relative hazard, i.e., exp(xb).  I am
surprised that the calculation of the hazard is not a standard command.
Please help."
 
Check [R] lincom. After:
  . stcox x , 
give the command:
  . lincom _cons , hr
to display the baseline hazard (x=0), and:
  . lincom _cons x , hr
to display the hazard for x=1.
 
For some reason Stata decided not to display the constant (baseline 
hazard) with the -eform- versions of various regression models, but 
it can be obtained using -lincom-.
 
Hope this helps.
 
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, work:  +45 8942 6090 
Phone, home:  +45 8693 7796 
Fax:          +45 8613 1580 
E-mail:       sj@soci.au.dk 
_________________________________________________________ 

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