This study investigates the methods used to conduct reviews of the effectiveness of health promotion interventions. It aims to determine how different review methods affected the conclusions drawn, and to make recommendations on how effectiveness reviews in health promotion should be carried out. This systematic review was published by EPPI-Centre in 20 .Systematic reviews aim to find as much as possible of the research relevant to the particular research questions, and use explicit methods to identify what can reliably be said on the basis of these studies.
