Evidence based practice (EBP) is the conscientious use of current best evidence in making decisions about patient care (Sackett, Straus, Richardson, Rosenberg, & Haynes, 2000)
The three components (the "triad approach to EBP) are
The "PICO" question helps to define a specific clinical or health-related question to be answered.
Two helpful tutorials from Yale University:
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Databases index EBP as a Document Type, Publication Type, or an Article Type.
Information from Wiley Online Library
Once data of primary interest have been exhaustively collected, it is time to run a meta-analysis. A meta-analysis provides a powerful tool of combined analysis for all extracted data and gives weighted values for each study's effect sizes. A meta-analysis also provides whether a publication bias is present or not in assessing positive and negative studies e.g. using L'Abbé plot or inverted funnel-plots or even forest plots. Sometimes, a systematic review may be followed by simple pooled analysis when data are not sufficient.