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PROGNOSTIC VALUE OF A LABORATORY INDEX OF FRAILTY IN OLDER PATIENTS HOSPITALIZED FOR COVID-19: THE COMEPA STUDY

N. Veronese, V. Briganò, S. Ciriminna, A. Ganci, F. Bifara, F. Pollicino, M.C. Garlisi, F. Tantillo, S. Amodeo, G. Rizzo, L. Vernuccio, P. Mansueto, A. Licata, L. Giannitrapani, L.J. Dominguez, M. Barbagallo, the COMEPA group

J Frailty Aging 2024;13(3)213-217

BACKGROUND: Several indexes based on clinical and laboratory tests to identify frailty and to predict mortality have been produced. Only two studies, mixing clinical and laboratory parameters were made about a frailty index made of laboratory tests (FI-Lab) and mortality in older patients hospitalized for COVID-19. The aim of this study was to explore the accuracy and precision of an FI-Lab constructed with some common bio-humoral tests and mortality in a cohort of patients hospitalized for COVID-19. METHODS: The FI-Lab was constructed using 40 different bio-humoral tests during the first four days of hospitalization, with a score from 0 to 1. The association between FI-Lab and mortality was assessed using a multivariate Cox’s regression analysis, reported as hazard ratios (HRs) and 95% confidence intervals (CIs). The accuracy of the FI-Lab was reported as area under the curve (AUC) and the precision with the C-Index. RESULTS: 376 patients (mean age: 65 years; 53.7% males) were initially included. During the follow-up period, 41 deceased. After adjusting for five different factors, an FI-Lab value >0.54, the median value of our cohort, was associated with a relative risk about five times greater than lower values. Modeling FI-LAB as a continous variable, each increase in 0.01 points was associated with an increased risk in mortality of 8.4% (HR=1.084; 95%CI: 1.039-2.044). The FI-Lab was highly accurate (AUC=0.91; 95%CI: 0.87-0.95) and precise (C-Index=0.81) in predicting death. CONCLUSIONS: A simple index based on common laboratory tests can be used to predict mortality among older people hospitalized for COVID-19.

CITATION:
N. Veronese ; V. Briganò ; S. Ciriminna ; A. Ganci ; F. Bifara ; F. Pollicino ; M.C. Garlisi ; F. Tantillo ; S. Amodeo ; G. Rizzo ; L. Vernuccio ; P. Mansueto ; A. Licata ; L. Giannitrapani ; L.J. Dominguez ; M. Barbagallo ; the COMEPA group ; (2024): Prognostic Value of a Laboratory Index of Frailty in Older Patients Hospitalized for COVID-19: The COMEPA Study. The Journal of Frailty and Aging (JFA). http://dx.doi.org/10.14283/jfa.2024.29

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