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st: log rank test for paired data


From   "Thomas Speidel" <thomassp@cancerboard.ab.ca>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: log rank test for paired data
Date   Thu, 17 Nov 2005 15:21:15 -0700

This suggestion may not be appropriate for this situation, but you could
divide your data into two time intervals for all patients who experience
two events. That is, for each child who experiences the event in BOTH
eyes you would add a line: the first line denotes time from t0 to
t_event for time to event for the left eye; the second line denotes time
from t0 to t_event for time to event for the right eye.  See help
stsplit.  You can then run a Cox PH model.

Thomas

--
Thomas Speidel
Statistical Associate
Clinical Trials Unit
Tom Baker Cancer Centre
1331 - 29th Street N.W.
Calgary, AB, T2N 4N4

Tel. (403) 521-3370
Email: thomassp@cancerboard.ab.ca


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