st: Account for time-varying covariates in conditional logistic regression analysis

["gong shizhuo" <west_garden@hotmail.com>]

Dear Stata-users:

I meet a problem by doing a nest-case control study. Since both cases and 
controls are cohort participants and have exposures information in 
time-dependent manner, just wonder how to account for these time-dependent 
covariates in the conditional logistic regression analysis. Please note that 
these time-varying covariates are not matching variables. And I understand 
that in usual matched case-control study, there is only cross-section 
measurement of exposure.

Thank you.

Sincerely.
Cunlin Wang, MD, Ph.D Candidate
Department of Epidemiology
Johns Hopkins University

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