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st: Interpreting streg, time dist(weibull) coefficients as a time metric
From
Yvon Pho <[email protected]>
To
[email protected]
Subject
st: Interpreting streg, time dist(weibull) coefficients as a time metric
Date
Fri, 28 Feb 2014 12:27:06 -0500
Hello.
I am running an accelerated failure time model with a Weibull distribution
to estimate the time (in days) to my failure event. The Stata command is
streg x1 x2, time dist(weibull)
My coefficient for x1 is 2.226613, for x2 is -0.2897575, constant is
5.20779, and p is 1.635698.
Am I correct to say that the mean survival time (baseline) when x1
(continuous covariate) and x2 (binary covariate) are equal to 0 is 182.69
days (or exp(5.20779))? How do I interpret the coefficients for x1 and x2,
and convert them into a days metric?
Any help would be greatly appreciated.
Yvon
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