Effect Modification and Interaction Terms

It Takes Two to Tango

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this Investigators' Corner I look more deeply into the previously discussed phenomenon of effect modification. I revisit an explanation and examples of the phenomenon and then examine how to account for it statistically. Specifically, I show, in detail, how to write a regression equation that includes interaction terms that account for the effect modification. Finally, I look at interpretation of regression coefficients both with and without the presence of effect modification, and the associated interaction terms.

Original languageEnglish (US)
Pages (from-to)899-902
Number of pages4
JournalJournal of Foot and Ankle Surgery
Volume55
Issue number4
DOIs
StatePublished - Jul 1 2016

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Keywords

  • confounding
  • effect modification
  • interaction terms
  • multivariate analysis
  • regression

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Effect Modification and Interaction Terms : It Takes Two to Tango. / Jupiter, Daniel.

In: Journal of Foot and Ankle Surgery, Vol. 55, No. 4, 01.07.2016, p. 899-902.

Research output: Contribution to journalArticle

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