As a result of survival analysis, the shape of the survival function graph analyzed by Kaplan-Meier and the survival function graph estimated by the multivariate AFT model are very different.
(AFT survival function is a graph estimated with the 'stcurve, survival' option. It means when all covariates are average.)
Why are the results of AFT analysis so different? Can I use the survival function estimated by AFT?
Thank you for your answer.
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