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. 2026 Jun 17;16:1858453. doi: 10.3389/fonc.2026.1858453

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Copyright © 2026 Zhao, Zhao, Liu, Hou, Chen, Lan and Ping.

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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Funnel plot displaying incidence rate on the x-axis and standard error on the y-axis with five blue points, each labeled with study arm identifiers. Shaded regions represent significance thresholds for p-values, as indicated in the legend. — Funnel plot assessing publication bias.