Stcox, estimate tvc(var)
Regards,
Salah
Dr. Salaheddin Mahmud
Division of Cancer Epidemiology
Department of Oncology, McGill University
Gerald Bronfman Centre
546 Pine Avenue West
Montreal, Quebec
Canada H2W 1S6
Ph: (514) 398-8191.
Fax: (514) 398-5002.
[email protected]
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of KRISTIEN VERHEYEN
> Sent: Thursday, August 28, 2003 9:49 AM
> To: '[email protected]'
> Subject: st: stcox with continuously time-varying covariates only
>
> Hello,
>
> I am trying to fit a Cox model on a dataset with both fixed and time-
> varying
> covariates (tvc). However, Stata will not fit a model with tvc only. I
> have
> received two different error messages when trying to do this:
>
> stcox, tvc(var)
> last estimates not found
> (r301)
>
> or
>
> stcox, tvc(var)
> option tvc( ) not allowed
> (r198)
>
> It works fine when I also include a fixed variable in the model -
> unfortunately none of my fixed variables are significant but the tvc
are.
> I
> have found a similar query in the Statalist archives but unfortunately
no
> answer! Please can somebody help.
>
> Thank you,
>
> Kristien Verheyen
> PhD student
>
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> Visit our website at www.aht.org.uk
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