Dear Wei,
For stratified analysis, you could run -stcrreg- separately for each
stratum, using:
an -if- statement such as "if group==1" within the -stcrreg- command
line, or
first issuing "keep if group==1" prior to -stcrreg-.
I'm not sure about your competing causes question as I am using Stata
10.
Michael
On Oct 14, 2009, at 2:00 AM, Wei Xun wrote:
> Dear Statalister:
>
> I apologise if this has been asked before but my search in the
> archives did not return any relevant results.
>
> I am currently trying to estimating the effects of certain exposures
> on mortality from specific cancers where a large proportion of deaths
> occur from other causes. The new command stcrreg in STATA 11 has been
> most useful.
>
> However, I noticed that unlike stcox, stcrreg does not allow any
> stratification terms within the model. Are there any particular
> reasons why this not possible? I am aware of the fact that the power
> will be significantly reduced.
>
> Also my second problem is that I also would like to calculate the
> median survival time after the adjustment for competing causes. The
> stci command which works with stcox does not extent to stcrreg. Could
> I alternatively use stcompt to calculate the cumulative incidence
> curve and estimate it from the point of 50%?
>
> Thank you in advance.
>
> Kind regards
>
> Wei Xun
> *
> * 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/
Michael McCulloch
Pine Street Foundation
124 Pine Street
San Anselmo, CA 94960-2674
tel: 415-407-1357
fax: 206-338-2391
[email protected]
*
* 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/
