Journal
EPIDEMIOLOGY AND INFECTION
Volume 148, Issue -, Pages -Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0950268820001405
Keywords
Brazil; COVID-19; epidemiology; mortality; survival
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This study aims to identify the risk factors associated with mortality and survival of COVID-19 cases in a state of the Brazilian Northeast. It is a historical cohort with a secondary database of 2070 people that presented flu-like symptoms, sought health assistance in the state and tested positive to COVID-19 until 14 April 2020, only moderate and severe cases were hospitalised. The main outcome was death as a binary variable (yes/no). It also investigated the main factors related to mortality and survival of the disease. Time since the beginning of symptoms until death/end of the survey (14 April 2020) was the time variable of this study. Mortality was analysed by robust Poisson regression, and survival by Kaplan-Meier and Cox regression. From the 2070 people that tested positive to COVID-19, 131 (6.3%) died and 1939 (93.7%) survived, the overall survival probability was 87.7% from the 24th day of infection. Mortality was enhanced by the variables: elderly (HR 3.6; 95% CI 2.3-5.8;P< 0.001), neurological diseases (HR 3.9; 95% CI 1.9-7.8;P< 0.001), pneumopathies (HR 2.6; 95% CI 1.4-4.7;P< 0.001) and cardiovascular diseases (HR 8.9; 95% CI 5.4-14.5;P< 0.001). In conclusion, mortality by COVID-19 in Ceara is similar to countries with a large number of cases of the disease, although deaths occur later. Elderly people and comorbidities presented a greater risk of death.
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