[1] Umbrella reviews are among the highest levels of evidence currently available in medicine.
[2] By summarizing information from multiple overview articles, umbrella reviews make it easier to review the evidence and allow for comparison of results between each of the individual reviews.
[1] Umbrella reviews may address a broader question than a typical review, such as discussing multiple different treatment comparisons instead of only one.
[1][3] They are especially useful for developing guidelines and clinical practice, and when comparing competing interventions.
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