Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: kaplan meier plots
From
Lars Folkestad <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: kaplan meier plots
Date
Thu, 22 Dec 2011 14:10:00 +0100
Dear List
I have a question regarding the kaplan-meier plots
I want to investigate the lifespan in patients with a given disease.
I have the following data
Date of birth: DMY
Date of death: DMY
When i use the following:
. Stset DOB, faliure(DOD)
I get at table saying:
obs. time interval: (0, DOB]
_N obs. end on or before enter()
Im guessing the program is working with the stata start time of 0.
How do i set the start time to the DOB?
And while we're at it, before i noticed the error i did draw up a KM plot
and found that it gave me an analysis time of 1500000 or somewhere in that
ball park. I would love for it to be years.
Anythoughts?
Thank you
lars
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/