Factors associated with mortality in patients with COVID-19 in a public hospital

ABSTRACT

The objective of the study was to determine the factors associated with hospital mortality in patients with coronavirus disease 2019 (COVID-19). An observational, analytical, case-control study was conducted. Hospitalized patients diagnosed with COVID-19 by serological test and/or molecular test between March and August 2020 were included. The Mann Whitney test was used for statistical analysis and logistic regression was used for the analysis of associated factors. The significance of p-value was < 0.05. A total of 814 patients were included, 556 (68.3%) were men and 246 (30.2%) were older than 60 years. The presence of some comorbidity was evidenced in 29.6% (241 patients);35.8% (292) died. The median age of the deceased was higher compared to the survivors (59 vs. 49;p >0.01). The comorbidities associated with COVID-19 were obesity (OR= 2.14;95% CI 1.38-3.32) and arterial hypertension (OR=1.86;95% CI 1.06- 3.24). Likewise, oxygen saturation levels less than 85% at hospital admission (OR= 3.58;95% CI 2.82-4.53);age over 60 years (OR=1.96;95% CI 1.54-2.50) and male gender (OR= 1.64;95% CI 1.12-2.39) were associated with greater mortality. Finally, the factors associated with hospital mortality were oxygen saturation less than 85% at hospital admission, older than 60 years of age, obesity, and arterial hypertension.