Cox survival model with more than one time-dependent covariate

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Cox survival model with more than one time-dependent covariate

Chris Poole-2
Dear list members,

Does anyone know if it is possible to run a Cox survival model with more than one time-dependent covariate in SPSS v15?

Kind regards,

Chris.

--
Dr Chris Poole
Pharmatelligence LLP
Pharma Research Centre | MediCentre | Cardiff | CF14 4UJ | UK
[hidden email]
P. +44(0)2920757744 | F. +44(0)8448701912 | M. +44(0)7733004258
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Re: Cox survival model with more than one time-dependent covariate

Spousta Jan
Dear Chris,
 
it should work this way (here there are 2 time dependent covariates, Y and LNY):
 

GET FILE='C:\Program Files\SPSS15\Breast cancer survival.sav'.

 

TIME PROGRAM.

 

- COMPUTE Y = T_/12 + age .

 

- COMPUTE LNY = LN(T_/12 + age).

 

COXREG time /STATUS=status(1) /METHOD=ENTER Y LNY pathsize.

 
Best regards,
Jan


From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Chris Poole
Sent: Monday, August 24, 2009 1:37 PM
To: [hidden email]
Subject: Cox survival model with more than one time-dependent covariate

Dear list members,

Does anyone know if it is possible to run a Cox survival model with more than one time-dependent covariate in SPSS v15?

Kind regards,

Chris.

--
Dr Chris Poole
Pharmatelligence LLP
Pharma Research Centre | MediCentre | Cardiff | CF14 4UJ | UK
[hidden email]
P. +44(0)2920757744 | F. +44(0)8448701912 | M. +44(0)7733004258
 

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