Journal of Clinical Epidemiology
Volume 56, Issue 7 , Pages 610-617 , July 2003

Early stopping in clinical trials and epidemiologic studies for “futility”: Conditional power versus sequential analysis

  • Ingeborg van der Tweel

      Affiliations

    • Centre for Biostatistics, Utrecht University, Centrumgebouw Noord C122, Padualaan 14, 3584 CH Utrecht, The Netherlands
    • Corresponding Author InformationCorresponding author. Tel.: +31-30-253-5437; fax: +31-30-252-1105.
    • ,
  • Paulus A.H. van Noord

      Affiliations

    • Julius Centre for Health Sciences and Primary Care, Utrecht University, Utrecht, The Netherlands

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PII: S0895-4356(03)00117-3

doi: 10.1016/S0895-4356(03)00117-3

Journal of Clinical Epidemiology
Volume 56, Issue 7 , Pages 610-617 , July 2003

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