st: Testing for non random attrition in a proportional hazard model(stcox)

[damien bernard de walque <dbdewalq@midway.uchicago.edu>]

Dear Statalist,

I am performing a survival analysis from a cohort study where there is
attrition. I would like to test the assumption that attrition
(i.e. censoring before the end of the study period) is random.
Is there a test that could be used in a proportional hazard model (stcox).

Thanks a lot,

Damien


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