In association with

  • Bristol, North Somerset and South Gloucestershire Integrated Care Board
  • West of England Academic Health Science NetworkWest
  • National Institute for Health Research



Confounding variable

A variable which is not the one you are interested in, but which may affect the results of trial.

Critical appraisal

The assessment of evidence by systematically reviewing its relevance, validity and results to specific situations. (Chambers, R. (1998). Clinical effectiveness made easy: first thoughts on clinical governance. Oxford, Radcliffe Medical Press.) It is a balanced assessment of benefits and strengths of evidence against its flaws and weaknesses.

Critically appraised topic (CAT)

A short summary of an article from the literature, created to answer a specific clinical question.

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