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Every article on Frontiers is peer reviewed, permanently archived and free to read.

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Original Research
Published 9 October 2026
Association of preoperative frailty and postoperative delirium with one-year mortality after surgery in older patients with hip fractures
Keqin Zhang · Peidong Zhang · Ling Chen · Housheng Wang · Wubin Chen · Yusheng Zhu · Dai Li · Wenbin Lu
Frontiers in Aging
doi 10.3389/fragi.2026.1923192