Association between preoperative prognostic nutritional index and postoperative delirium in older adults with hip fractures: a real-world study.

Ann Med · 2026 · PMC13288896 · PMID 42329416

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a significant trendno p-value reported

When PNI was analyzed as tertiles (T1 as reference), both T2 (HR = 0.20, 95% CI: 0.07–0.60, p = 0.004) and T3 (HR = 0.20, 95% CI: 0.07–0.59, p = 0.004) showed significantly reduced POD risk, with a significant trend across tertiles ( p for trend < 0.001).

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