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Re: st: survival analysis: left censoring/ truncation
From
Robert A Yaffee <[email protected]>
To
[email protected]
Subject
Re: st: survival analysis: left censoring/ truncation
Date
Thu, 27 May 2010 00:33:51 -0400
Oliver,
Stata can usually handle interval truncation and /or
interval censoring.
Robert
Robert A. Yaffee, Ph.D.
Research Professor
Silver School of Social Work
New York University
Biosketch: http://homepages.nyu.edu/~ray1/Biosketch2009.pdf
CV: http://homepages.nyu.edu/~ray1/vita.pdf
----- Original Message -----
From: Oliver Eger <[email protected]>
Date: Wednesday, May 26, 2010 8:21 am
Subject: st: survival analysis: left censoring/ truncation
To: [email protected]
> Dear Stata users,
>
> one more question to my survival analysis:
>
> My study ranges from 1900 till 2000. This is also the enrollment
> period. Due
> to my definitions, the onset of risk for each company is the year of first
> mentioning in my data source. This means, according to my opinion,
> that my
> data is neither left censored nor left truncated. But I assume that at
> least
> some companies existed before 1900, without having exact information about
> this.
>
> Are there any (technical/ statistical) alternatives to tread this left
> borders of my data instead of doing this by definition?
>
> Best regards
> Oliver
>
> ================================================
> Oliver Eger
> Lehrstuhl für VWL - Innovationsökonomik
> Universität Augsburg
> Universität Hohenheim
> Prof. Dr. Horst Hanusch - Prof. Dr. Andreas Pyka
> ================================================
>
>
>
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