LAPAROSCOPIC ANTIREFLUX SURGERY: ARE OLD QUESTIONS ANSWERED? USEFUL FOR EXTRA-ESOPHAGEAL SYMPTOMS?

Arq Bras Cir Dig · 2022 · PMC8846371 · PMID 35107494

Europe PMC DOI

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failed to reach statistical significanceno p-value reported

Even though the primary end point of change in FVC failed to reach statistical significance, it is noted that this study was severely underpowered as 400 patients, rather than 58, were required to achieve 90% power.

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