We classified the study population into low (≤98) and high (>98) GNRI groups based on the best cutoff value. Results: In all, 3,501 elderly patients with AKI were selected for this study, with a 1-year mortality rate of 36.4%. In the study, 1-year mortality was considered the primary outcome, whereas in-hospital, ICU, 28-day and 90-day mortality, and prolonged length of stay in ICU and hospital were selected as the secondary outcomes. AKI was diagnosed and staged according to the “Kidney Disease Improving Global Outcomes” criteria. Methods: We collected elderly AKI patient-relevant data from the Medical Information Mart for Intensive Care III database. This analysis sought to examine the prognostic effects of GNRI on elderly AKI patients in intensive care units (ICUs). However, the predictive validity of GNRI in critically ill elderly patients with acute kidney injury (AKI) is yet to be determined. Introduction: The geriatric nutritional risk index (GNRI), a nutritional screening tool specifically for the aging population, has been proven to be associated with worse outcomes in chronic kidney disease patients, especially in the hemodialysis population. 5Chengdu Medical College, Chengdu, China.4Department of Nephrology, Mianyang People's Hospital, Mianyang, China.3North Sichuan Medical College, Nanchong, China.2Department of Nephrology, Chengdu Second People's Hospital, Chengdu, China.1Department of Nephrology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China.
Dan Liao 1 * †, Yonghua Deng 2 †, Xinchun Li 3, Ju Huang 4, Jiayue Li 5, Ming Pu 5, Fenglian Zhang 1 and Lijun Wang 1
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