Cochrane Public Health and Health Systems supports the work of six Cochrane Review Groups focusing on research in the following areas: 

The primary focus of Cochrane Review Groups are to provide reliable evidence required to make important decisions on issues concerning their related topics. Cochrane Review Groups facilitate the identification of reports of clinical trials and carry out systematic reviews of available evidence. These are published on the Cochrane Library, and updated periodically as new evidence is identified. This ensures that Cochrane Reviews are relevant, useful, usable, and used.