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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 BMJ+Open 2020 ; 10 (9): e040729 Nephropedia Template TP
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Clinical risk score to predict in-hospital mortality in COVID-19 patients: a retrospective cohort study #MMPMID32978207
Fumagalli C; Rozzini R; Vannini M; Coccia F; Cesaroni G; Mazzeo F; Cola M; Bartoloni A; Fontanari P; Lavorini F; Marcucci R; Morettini A; Nozzoli C; Peris A; Pieralli F; Pini R; Poggesi L; Ungar A; Fumagalli S; Marchionni N
BMJ Open 2020[Sep]; 10 (9): e040729 PMID32978207show ga
OBJECTIVES: Several physiological abnormalities that develop during COVID-19 are associated with increased mortality. In the present study, we aimed to develop a clinical risk score to predict the in-hospital mortality in COVID-19 patients, based on a set of variables available soon after the hospitalisation triage. SETTING: Retrospective cohort study of 516 patients consecutively admitted for COVID-19 to two Italian tertiary hospitals located in Northern and Central Italy were collected from 22 February 2020 (date of first admission) to 10 April 2020. PARTICIPANTS: Consecutive patients>/=18 years admitted for COVID-19. MAIN OUTCOME MEASURES: Simple clinical and laboratory findings readily available after triage were compared by patients' survival status ('dead' vs 'alive'), with the objective of identifying baseline variables associated with mortality. These were used to build a COVID-19 in-hospital mortality risk score (COVID-19MRS). RESULTS: Mean age was 67+/-13 years (mean+/-SD), and 66.9% were male. Using Cox regression analysis, tertiles of increasing age (>/=75, upper vs <62 years, lower: HR 7.92; p<0.001) and number of chronic diseases (>/=4 vs 0-1: HR 2.09; p=0.007), respiratory rate (HR 1.04 per unit increase; p=0.001), PaO(2)/FiO(2) (HR 0.995 per unit increase; p<0.001), serum creatinine (HR 1.34 per unit increase; p<0.001) and platelet count (HR 0.995 per unit increase; p=0.001) were predictors of mortality. All six predictors were used to build the COVID-19MRS (Area Under the Curve 0.90, 95% CI 0.87 to 0.93), which proved to be highly accurate in stratifying patients at low, intermediate and high risk of in-hospital death (p<0.001). CONCLUSIONS: The COVID-19MRS is a rapid, operator-independent and inexpensive clinical tool that objectively predicts mortality in patients with COVID-19. The score could be helpful from triage to guide earlier assignment of COVID-19 patients to the most appropriate level of care.
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BMJ+Open 2020 ; 10 (9): e040729
