Читать книгу The Pocket Guide to Critical Appraisal - Iain K. Crombie - Страница 31

Systematic reviews seek to identify all the papers published on a specific health topic to obtain a summary of the findings from all the relevant studies. They commonly use the statistical technique of meta‐analyses to combine the findings from each study. In effect, meta‐analysis produces results which are comparable with those from one very large study. This approach overcomes the weakness of individual studies, which, because of their small size, can be greatly affected by the play of chance.