What is propensity score modelling?

Emerg Med J. 2017 Mar;34(3):129-131. doi: 10.1136/emermed-2016-206542. Epub 2017 Jan 31.


Propensity score methodology is being increasingly used to try and make inferences about treatments when randomised trials are either impossible or not conducted and the only data are from observational studies. This paper reviews the basis of propensity scores and the current state of knowledge about them. It uses and critiques a current paper in the Emergency Medicine Journal to illustrate the methodology.

Keywords: Statistics; anaesthesia; research methods.

Publication types

  • Editorial

MeSH terms

  • Cricoid Cartilage / pathology*
  • Emergency Medicine / methods
  • Emergency Medicine / standards
  • Humans
  • Pressure*
  • Propensity Score*
  • Research Design / standards*
  • Treatment Outcome*
  • Vomiting / prevention & control