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Type of study used

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Type of study:

  • retrospective e.g. case control study
  • prospective e.g. cohort study, randomised controlled trial

Other points regarding study design include:

  • was the study blinded? If so was the study blinded for the patient and the investigator (double blinded)?
  • was the study a crossover study?

The findings from a prospective study are more valid than those from a retrospective one.

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