Abstract

systematic reviews could inform about the impact of different health systems’ arrangements on processes of care and patients’ health outcomes. As for any type of evidence, users should make judgments about how much confidence to place in their findings. AMSTAR (Assessment Methodological quality of SysTemAtic Reviews) is a tool for assessing the methodological quality of reviews. An updated version—AMSTAR-2—was developed in response to some limitations of the original tool. ROBIS (Risk Of Bias In Systematic reviews) was recently developed to assess risk of bias (RoB) in reviews. They have not been compared in assessing health systems reviews.