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Thread: outliers in survival probability

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    outliers in survival probability




    Hi all,

    We use survival data of 90 patients that were divided in two sub groups. (31, 59).
    Two patients (out of the 31 sub group) survived 50% longer than all others.

    Are they considered outliers? What are the criterions to define outliers?

    Thanks for your help,
    Or

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    Re: outliers in survival probability

    What criteria are you using? Survival data are rarely normally distributed. It is often highly skewed in either direction.

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    Re: outliers in survival probability


    I personally don't recall ever hearing/reading talk of outliers in survival analyses. E.g., in this entire book chapter on Cox proportional hazards model the word "outlier" doesn't appear once
    The mathematical explanation of a statistical procedure is really just pseudo-code, which we can make operational by translating it into real computer code. --B. Klemens

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