• Media type: Text; E-Article
  • Title: A dunnett-type procedure for multiple endpoints
  • Contributor: Hasler, Mario [Author]; Hothorn, Ludwig A. [Author]
  • Published: Berlin : Walter de Gruyter, 2011
  • Published in: International Journal of Biostatistics 7 (2011), Nr. 1
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/2285; https://doi.org/10.2202/1557-4679.1258
  • ISSN: 1557-4679
  • Keywords: multivariate t</ em>-distribution ; many-to-one comparison ; multiple endpoint ; family-wise error ; rating scale ; dunnett procedure ; binomial distribution ; extracorporeal circulation ; statistical analysis ; variance ; multiple endpoints ; simulation ; multivariate analysis ; article
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  • Description: This paper describes a method for comparisons of several treatments with a control, simultaneously for multiple endpoints. These endpoints are assumed to be normally distributed with different scales and variances. An approximate multivariate t-distribution is used to obtain quantiles for test decisions, multiplicity-adjusted p-values, and simultaneous confidence intervals. Simulation results show that this approach controls the family-wise error type I over both the comparisons and the endpoints in an admissible range. The approach will be applied to a randomized clinical trial comparing two new sets of extracorporeal circulations with a standard for three primary endpoints. A related R package is available. © 2011 Berkeley Electronic Press. All rights reserved.
  • Access State: Open Access