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. 2022 Feb 23;19(5):2559. doi: 10.3390/ijerph19052559

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Certainty analysis with GRADE. Conventions: ^a One of the studies had no concealment or randomization and blinding of assessment. ^b Media and DS cannot be accessed, which makes it impossible to generate the meta-analysis. ^c There is no blinding of the evaluations, the collection of the patients is not clear. ^d The data differ from those reported with this scale in other studies. ^e there is no blinding of the evaluations, no second group was generated. ^f The measurements are generated in ranges. ^g The intervals are wide. Source: Own source with GRADEpro GDT.