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04-30-2009 02:50 AM

How to calculated 10-year probability?

It seem that the probability can be found in Cox Regression or Logistic regression . How?

Thanks

It seem that the probability can be found in Cox Regression or Logistic regression . How?

Thanks

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Posted in reply to deleted_user

04-30-2009 03:10 PM

In logistic regression, if the dependent variable is the binary outcome at 10 years, then the model can produce the predicted probability for each observation at 10 years. The average of the individual predicted probabilities is the expected event rate for the study group. You can develop the model on one group and apply it to another group.

It's a bit messier to obtain (and explain) for Cox regression, but it's documented in the PHREG details.

Doc Muhlbaier

Duke

It's a bit messier to obtain (and explain) for Cox regression, but it's documented in the PHREG details.

Doc Muhlbaier

Duke