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. 2023 Oct 30;16:3625–3632. doi: 10.2147/JPR.S432601

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© 2023 Yu et al.

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CONSORT flow diagram. OBA opioid-based anesthesia, OFA opioid-free anesthesia.

Notes: Adapted from Schulz KF, Altman DG, Moher D, CONSORT 2010 Statement: Updated Guidelines for Reporting Parallel Group Randomised Trials. PLoS Med. 2010;7(3): e1000251. Copyright: © 2010 Schulz et al. Creative Commons Attribution License.¹⁰