Quantitative Electroencephalogram Changes before and after Postoperative Delirium: A Prospective, Multicenter Cohort Study.

Anesthesiology · 2026 · PMC13155210 · PMID 41805653

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a possible trendno p-value reported

However, examination of effect sizes did reveal a medium effect for beta spectral variability (β = 0.31; 95% CI, 0.00 to 0.63; P unadjusted = 0.05), suggesting a possible trend for greater increases in beta spectral variability over time in POD+ versus POD– .

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