A systematic review is a type of research study that aims to synthesize and evaluate all the available evidence on a particular research question or topic.
It involves a comprehensive search for relevant studies, a critical appraisal of their quality, and a synthesis of their findings using statistical techniques.
Systematic reviews are typically used to inform decision-making in healthcare and other fields, as they provide a rigorous and transparent evaluation of the existing evidence.
They are often considered the highest level of evidence in evidence-based medicine, as they minimize bias and provide a more comprehensive view of the available evidence than individual studies or expert opinions.