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st: comparing -ltable- and -sts list-

From   Michael McCulloch <>
To   Statalist <>
Subject   st: comparing -ltable- and -sts list-
Date   Sun, 2 Nov 2008 15:21:35 -0800

Dear Statalist members,
I had the impression that both -ltable- and -sts list- would list the survivor function per failure period. However, they give slightly different answers. In the example below, for drug3 -ltable- shows survival at 24 months as 77.14%, whereas -sts list- says it's 64.29%

sysuse cancer.dta, clear
sts list, by(drug)
ltable _t died, by(drug)

Could anyone help me to clarify this?


Best wishes,
Michael McCulloch

Pine Street Foundation
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