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st: Kaplan Meier plot: adding vertical line at median survival


From   Michael McCulloch <mm@pinest.org>
To   Statalist <statalist@hsphsun2.harvard.edu>
Subject   st: Kaplan Meier plot: adding vertical line at median survival
Date   Sat, 1 Nov 2008 20:04:58 -0700

Greetings,
I'd like to plot a Kaplan Meier graph with a vertical line at the point of median survival, where the line begins at the x-axis and ends at the point where that vertical line intersects the survival curve.

For example:
sysuse cancer.dta
stset studytime
sts graph, by(drug)

In this example, for drug2 median survival is at 13 months, and for drug3, at 25 months, so I'd . Is this possible within the -sts graph- command? I'm using v9.2 and so don't have the manual graphical editing features of v10.

Thank you.

--

Best wishes,
Michael McCulloch



Pine Street Foundation
124 Pine St., San Anselmo, CA 94960-2674
Tel:	(415) 407-1357
Fax:	(415) 485-1065
mcculloch@pinestreetfoundation.org
www.pinestreetfoundation.org
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