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Test difference between 2 cumulative incidences curves from Fine-Gray models

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Test difference between 2 cumulative incidences curves from Fine-Gray models

Hi

 

I'm working with 2 cohorts, 1 cohort followed between 2007 and 2010 and 1 cohort followed between 2010 and 2013.

 

How can I test the difference between the 2 cumulative incidence curves obtained with 2 different Fine Gray models (SAS pshreg macro) ? I know this can be done with the cuminc function in the R package cmprsk but I would like to be able to do this in SAS.

 

Since these are 2 independent populations, I dont think that fitting a unique model and testing the effect of a dichotomous covariate "cohort1 or cohort2" would be correct.

 

Thanks for your help

 

Yohann

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