To assist the user's understanding of different levels of evidence, including both pre-appraised or 'filtered' evidence and non preapparased evidence. Lists of key databases/resources for each level of research are provided.
Adapted by L. Tjosvold from: Agoritsas T, Vandvik P, Neumann I, Rochwerg B, Jaeschke R, Hayward R, Guyatt G, McKibbon K. Finding Current Best Evidence. In: Guyatt G, Meade MO, Rennie D, Cook DJ. eds. JAMA evidence Using Evidence to Improve Care. New York, NY: McGraw-Hill; 2014. http://jamaevidence.mhmedical.com.login.ezproxy.library.ualberta.ca/content.aspx?bookid=847&Sectionid=69031461.
"Summaries integrate the best available evidence from the lower levels..to provide a full range of evidence concerning management options for a given health problem" (DiCenso 2009).
Point of Care Tools
Evidence-based Clinical Practice Guidelines
Clinical practice guidelines often provide recommendations for clinical decision making.
SYNOPSES OF SYNTHESES
These are narrative descriptions of systematic reviews, and often include a critical appraisal of the methodology used to conduct the review.
Syntheses include systematic reviews, health technology assessments and comprehensive meta-analyses. The methodology of the review is not appraised but the methodology of individual studies within the review are assessed for quality or risk of bias.
SYNOPSES OF STUDIES
These are narrative descriptions of high quality single studies and may include an appraisal of the study methodology.
The quality and validity of primary studies has not yet been critically appraised or evaluated.
Some databases include only primary studies with specific study designs such as clinical trials or diagnostic studies.
The majority of studies are located in unfiltered databases, which contain other references and publication types in addition to primary research, such as comments, letters, and general journal articles.
Determine the type of question you are asking and select the most appropriate resources to use:
Resources found in Levels of Evidence Pyramid
More information on which resources to use for your question type: