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Thread: Help understanding results of this radomized controlled trial.

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    Help understanding results of this radomized controlled trial.




    In the following published paper linked to below, could someone explain the meaning of this quote:

    The trial was stopped at the interim analysis, and the mean (interquartile range) follow-up was 18.1 mo (13.0-21.0) when the data were analysed.
    Link to publication that the quote is from: http://www.plosmedicine.org/article/...esentation=PDF

    Does the quote mean that half of the follow-ups were between 13.0-21.0 months or does it mean that all the follow-ups were between 13.0-21.0 months?

    Thanks

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    Re: Help understanding results of this radomized controlled trial.

    If your question is just about the interquartile component, then the anwser is yes 50% were in that range. More specifically if you arrange all of the FUs, then the middle 50% would be in the reported range (25% to 75%). There then would be 25% with shorter and 25% with longer FUs.

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    Re: Help understanding results of this radomized controlled trial.


    Quote Originally Posted by hlsmith View Post
    If your question is just about the interquartile component, then the anwser is yes 50% were in that range. More specifically if you arrange all of the FUs, then the middle 50% would be in the reported range (25% to 75%). There then would be 25% with shorter and 25% with longer FUs.
    Yes, that is my question, but what are FUs?

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