Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: st: cox regression alternatives


From   jverkuilen <jverkuilen@gc.cuny.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: cox regression alternatives
Date   Sun, 29 Mar 2009 19:13:59 -0400

You would gain some power if you switched to a parametric model, but the question would be whether the assumed distribution would fit reasonably well, something the Cox PH approach sidesteps (to some degree anyway) by making the hazard nonparametric.  

I forget the name of the Stata command for parametric lifetime regression but if you use help on the Cox procedure it should show up (or look in the menu). The log-logistic distribution is often nice. 

-----Original Message-----
From: "moleps islon" <moleps2@gmail.com>
To: statalist@hsphsun2.harvard.edu
Sent: 3/29/2009 11:26 AM
Subject: st: cox regression alternatives

I'm struggling with a dataset of 90 patients with only 10 events and
several covariates I'd like to investigate. Seeing the recommended
number of events for a cox regression to be at least 10-what are my
other options in investigating this rare tumor except from detailing
the descriptives and producing a Kaplan Meier plot?

Regards,
Moleps
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index