Collapsing Ordered Outcome Categories : A Note of Concern

  title={Collapsing Ordered Outcome Categories : A Note of Concern},
  author={Ulf Strbmberg},
  • Ulf Strbmberg
  • Published 2005
When analyzing and interpreting data from an epidemiologic study where ordinal (ordered categorical) outcomes have been measured in different exposure groups, an effect parameter of interest is the common odds ratio implied by the proportional odds model. This model can sometimes be applied to a collapsed outcome variable, instead of the measured variable, without reducing efficiency considerably. However, in a given data set, changing the outcome categories can affect the effect estimate as… CONTINUE READING

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Regression models for ordinal data (with discussion)

  • P. McCullagh
  • J R Stat Soc [B]
  • 1980
Highly Influential
8 Excerpts

Regression and ordered categorical variables (with discussion)

  • JA Anderson
  • J R Stat Soc [B]
  • 1984
3 Excerpts

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