What is a systematic review?
AHRQ defines a systematic review as "a summary of the clinical literature. A systematic review is a critical assessment and evaluation of all research studies that address a particular clinical issue. The researchers use an organized method of locating, assembling, and evaluating a body of literature on a particular topic using a set of specific criteria. A systematic review typically includes a description of the findings of the collection of research studies. The systematic review may also include a quantitative pooling of data, called a meta-analysis."
Adapted under Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. from: YourHealthNet, "Navigating Effective Treatments With Systematic Reviews: An online toolkit that will help you understand and develop the skills to explore health research" developed and published by the Centre for Health Communication and Participation with support from the Australasian Cochrane Centre.