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st: Adjusted kaplan Meier Curves


From   Deepa Aggarwal <da.aggarwal@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Adjusted kaplan Meier Curves
Date   Thu, 3 Sep 2009 12:03:13 -0400

Dear all,



I have been asked to plot Kaplan meier curve  adjusted for age, gender
etc by three age categories.
When I was searching for a code to plot this type of graph,  I found
three different codes.

1.  sts graph,  by( age_cat) adjustfor (age_cat gender)

2. stcox  age_cat sex , basesurv(S)
stcurve, survival at1(age_cat=0) at2(age_cat=1) at3(age_cat=2)

3. akapm   _t  _d, with( age_cat) by( age_cat)


I tried these three codes, but the graphs look very different from each other.

What is the difference between these three codes?

Which one is the right code to create Kaplan meier curve  adjusted for
covariates?




 Thanks for your consideration.

 Deepa Aggarwal

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