1) Overviews should contain a clearly formulated objective designed to answer a specific clinical research question, typically about a healthcare intervention. |
2) Overviews should intend to search for and include only systematic reviews (with or without meta-analyses). |
3) Overviews should use explicit and reproducible methods to identify multiple systematic reviews that meet their inclusion criteria and to assess the methodological quality of these systematic reviews. |
4) Overviews should intend to collect, analyze, and present the descriptive characteristics of their included systematic reviews (and their primary studies) and the quantitative outcome data contained within the systematic reviews. |