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. 2026 Sep 25;14:1949534. doi: 10.3389/fped.2026.1949534

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© 2026 Pan and Ye.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Risk of bias summary table with fifteen studies listed vertically and seven bias categories—random sequence generation, allocation concealment, blinding of participants and personnel, blinding of outcome assessment, incomplete outcome data, selective reporting, and other bias—listed horizontally. All studies show low risk (green plus) across all categories, except Payrovee 2014, which shows high risk (red minus) for blinding of participants and personnel. — Results of literature quality evaluation.