A Systematic Review is a literature review focused on a single question which tries to identify, appraise, select and synthesis all high quality research evidence relevant to that question. Reviews are considered a Secondary Source in nursing.
- Systematic reviews use explicit methods to identify, select, and critically evaluate relevant research.
- Systematic reviews minimize the possibility of bias by using explicit criteria, and expand the relevance of individual studies with limited scope, but ...
- Only a small number of clinical topics are covered by systematic reviews, because they require years of effort to develop.
Meta-analyses are systematic reviews that combine the results of several studies using quantitative statistics.