Re: st: RE: [sampling in Cox model]

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

At 11.23 19/06/03 -0400, you wrote:
> This answer is perhaps going in a different direction; that is, a design
> direction rather than a statistical direction. But there is the nested case
> control study, which is commonly used within large cohorts to test specific
> hypotheses.

I would just add that an useful alternative to the nested case control is 
the case cohort study.
As the previous design it easily implemented using STATA.

Enzo


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