Processing the Hierarchy of Evidence
Evidence-Based Medicine categorizes evidence based on how it has been processed and been packaged for use in clinical practice. They fall into the categories of Non-appraised Research, Critically Appraised Research, and Summaries/ Guidelines. The following content is based largely on the 3rd edition of Users' guide to the medical literature: a manual for evidence-based clinical practice by Guyatt G, et. al, (2015).