• Aging Clin Exp Res · Dec 2020

    Prognostic role of nutritional status in elderly patients hospitalized for COVID-19: a monocentric study.

    • Guerino Recinella, Giovanni Marasco, Giovanni Serafini, Lorenzo Maestri, Giampaolo Bianchi, Paola Forti, and Marco Zoli.
    • Unit of Internal Medicine, Department of Medical and Surgical Sciences, S. Orsola- Malpighi University Hospital, University of Bologna, Via Pietro Albertoni 15, 40138, Bologna, Italy. guerino.recinella@gmail.com.
    • Aging Clin Exp Res. 2020 Dec 1; 32 (12): 2695-2701.

    BackgroundSymptomatic severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection incidence is higher in the elderly patients. Pre-existing geriatric conditions such as comorbidity and frailty seem related to worse hospital outcomes.AimsTo assess the role of nutritional status as an independent prognostic factor for in-hospital death in elderly patients.MethodsConsecutive elderly patients (age > 65 years) hospitalized for novel coronavirus disease (COVID-19) were enrolled. Demographics, laboratory and comorbidity data were collected. Nutritional status was evaluated using the Geriatric Nutritional Risk Index (GNRI). Uni- and multivariate Cox regression analyses to evaluate predictors for in-hospital death were performed.ResultsOne hundred and nine hospitalized elderly patients (54 male) were consecutively enrolled. At univariate analysis, age (HR 1.045 [CI 1.008-1.082]), cognitive impairment (HR 1.949 [CI 1.045-3.364]), C-reactive protein (HR 1.004 [CI 1.011-1.078]), lactate dehydrogenases (HR 1.003 [CI 1.001-1.004]) and GNRI moderate-severe risk category (HR 8.571 [CI 1.096-67.031]) were risk factors for in-hospital death, while albumin (HR 0.809 [CI 0.822-0.964]), PaO2/FiO2 ratio (HR 0.996 [CI 0.993-0.999]) and body mass index (HR 0.875 [CI 0.782-0.979]) were protective factors. Kaplan-Meier survival curves showed a significative higher survival in patients without GNRI moderate or severe risk category (p = 0.0013). At multivariate analysis, PaO2/FiO2 ratio (HR 0.993 [CI 0.987-0.999], p = 0.046) and GNRI moderate-severe risk category (HR 9.285 [1.183-72.879], p = 0.034) were independently associated with in-hospital death.ConclusionNutritional status assessed by GNRI is a significative predictor of survival in elderly patients hospitalized for COVID-19. The association between GNRI and PaO2/FiO2 ratio is a good prognostic model these patients.

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