Re: st: stcompet and delayed entry

[Enzo Coviello <enzo.coviello@alice.it>]

At 21.17 29/01/2007, you wrote:
> Hi,
>
> I would like to calculate the complement of the Kaplan-Meier and the
> cumulative incidence in the presence of competing risks. However,
> several subjects in my cohort data are left truncated (delayed entry)
> so the number of subjects at risk actually increases first and then
> decreases.  I first stset my data as:
>
> stset age_x, fail(fail) time0(age_e)
Hi Raoul,

you should declare in -stset- wich is the main event:
stset age_x, fail(fail==1) enter(time age_e)

where fail==1 marks the main event.

Then -stcompet- can be used without special syntax to estimate 
cumulative incidence:

stcompet CumInc = ci, compet1(2)
where fail==2 corresponds to the competing event.


Enzo

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