Journal of Clinical Epidemiology
Volume 63, Issue 4 , Pages 350-352 , April 2010

When should an interim analysis be unblinded to the data monitoring committee?

  • J. André Knottnerus

      Affiliations

    • Corresponding Author InformationCorresponding author. Department of General Practice, Care and Public Health Research Institute (Caphri), Faculty of Health, Medicine and Life Sciences, Maastricht University, P.O. Box 616, 6220 MD, Maastricht, The Netherlands. Tel.: +31 43 3882319; fax: +31 43 3671458.
    • ,
  • Mark G. Spigt

,Accepted 14 July 2009.

References 

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  8. Knottnerus JA, Bouter LM. The ethics of sample size: two-sided testing and one-sided thinking. J Clin Epidemiol. 2001;54:109–110
  9. Knottnerus JA, Bouter LM. The ethics of sample size: the whole picture should be considered. J Clin Epidemiol. 2003;56:207–208
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PII: S0895-4356(09)00211-X

doi: 10.1016/j.jclinepi.2009.07.003

Journal of Clinical Epidemiology
Volume 63, Issue 4 , Pages 350-352 , April 2010

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