Notas metodológicas
Published on 6 de junio de 2023 | http://doi.org/10.5867/medwave.2023.05.2704
Approaching the body of evidence: Key concepts of Overviews
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Comparison between overviews, systematic reviews, scoping reviews, and evidence gap maps.
| Systematic review | Scoping review | Evidence gap map | ||
| Synthesize evidence from systematic reviews. | Synthesize evidence from primary studies. | Identify and describe the available evidence for a specific area. | Graphically sort the available evidence to find the evidence gaps on which research efforts and resources should be concentrated without worrying so much about the depth of the evidence found. | |
| Systematic reviews | Primary studies | Variable | Variable | |
| Assesses risk of bias of the included systematic reviews (direct). | Assesses risk of bias of the included primary studies. | May be present or absent. | May be present or absent. | |
| Summary and/or re-analysis of the outcome data of the included systematic reviews. | Synthesis of the primary study results included for each important outcome in three formats: meta-analysis, network meta-analysis, and/or narrative summaries. | Generally narrative, qualitative, or visual analysis. | Generally visual analysis (evidence map). | |
| It could be adapted to implement it in another way, reporting the assessments of each systematic review, if possible. Otherwise, consideration could be given to evaluating the certainty of evidence using the primary data from systematic reviews. | It evaluates the certainty of evidence according to the analysis of the primary studies for each prioritized outcome. | Not included. | Not included. |
GRADE, Grading of Recommendations Assessment, Development, and Evaluation...