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How is survival analysis calculated?

Submitted by Anonymous on

Survival analysis in the GDC uses a Kaplan‑Meier estimator:

  • S(t ) is the estimated survival probability for any particular one of the t time periods
  • n is the number of subjects at risk at the beginning of time period t
  • d is the number of subjects who die during time period t


Please refer to the GDC Data Portal User's Guide Projects for additonal information

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