2. Clinical information sources.


Best Evidence/Clinical Study Types

The best type of study, or evidence, is determined by the type of question being asked.

A systematic review or meta-analysis of studies from the best stated type provides more reliable evidence than an individual study.

Question TypeBest Evidence Database Search for Systematic Reviews Best Primary Study TypeDatabase Search for Best Study
TherapySystematic Review

EBM Reviews: Cochrane Database of Systematic Reviews via Ovid
or
MEDLINE via Ovid

"Evidence Based Medicine Reviews" limit or
'Systematic Reviews' under 'Publication type' limit or

'Meta Analysis' under 'Publication type' limit

Randomized Controlled TrialMEDLINE
Clinical Queries Limit

or filter terms
DiagnosisSystematic Review

MEDLINE via Ovid

"Evidence Based Medicine Reviews" limit or

'Systematic Reviews' under 'Publication type' limit or

'Meta Analysis' under 'Publication type' limit

Cross-sectional analytic studyMEDLINE
Clinical Queries Limit
or filter terms
AetiologySystematic Review

MEDLINE via Ovid

"Evidence Based Medicine Reviews" limit or

'Systematic Reviews' under 'Publication type' limit or

'Meta Analysis' under 'Publication type' limit

Cohort study/Case-control studyMEDLINE
Clinical Queries Limit

or filter terms
PrognosisSystematic Review

MEDLINE via Ovid

"Evidence Based Medicine Reviews" limit or

'Systematic Reviews' under 'Publication type' limit or

'Meta Analysis' under 'Publication type' limit

Cohort StudyMEDLINE
Clinical Queries Limit
or filter terms

 

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