Identifying systematic reviews
Systematic reviews aim to answer a clearly defined research or clinical question through rigorous identification, appraisal and synthesis of research evidence. They represent an evidence-based approach to informing practice in a range of disciplines. Systematic reviews are well-established in the fields of medicine and healthcare, but are also used in other areas including the social sciences.
The systematic review process usually starts with defining a research question and establishing criteria for the inclusion or exclusion of studies. A thorough literature search is undertaken to identify all the relevant studies. Studies are then appraised and where possible, and if appropriate, a synthesis of evidence may be performed. Systematic reviews aim to be a comprehensive summary of current evidence related to a particular research question. The School of Health Sciences have a short overview of the five major 'Steps in conducting a systematic review'.
Where can I find published systematic reviews?
You can search for published systematic reviews in medicine and health sciences in bibliographic databases such as MEDLINE (or its freely available equivalent, PubMed). You can also search the websites of major producers of systematic reviews, such as the organisations below. In addition, the PROSPERO protocols database is a prospective register of systematic reviews which are being undertaken but are not yet published, and the Epistemonikos database aims to contain all systematic reviews relevant for health decision-making.
For disciplines beyond medicine and health sciences, additional resources are available.
Cochrane Library
A collection of databases containing different types of evidence in healthcare, including:
The Cochrane Schizophrenia and Cochrane Skin groups are based at the University of Nottingham.
Campbell Collaboration
The Campbell Library contains systematic reviews of the effectiveness of social interventions, particulary in the fields of:
- education
- crime
- social welfare
