Mortality by COVID-19 Before Vaccination - One Year Experience of Hospitalized Patients in Madrid

Int J Infect Dis. 2022 Mar:116:339-343. doi: 10.1016/j.ijid.2022.01.043. Epub 2022 Jan 22.

Abstract

Objectives: The aim of the study was to analyze the mortality and characteristics of deceased patients with COVID-19 during the first year of the pandemic.

Methods: All admissions owing to COVID-19 at a tertiary hospital in Madrid were analyzed. Three waves were considered: March 2020 to June 2020, July 2020 to November 2020, and December 2020 to April 2021.

Results: A total of 3,676 patients were identified. Among inpatients, no differences regarding age, sex, length of admission, or mortality were found between the 3 waves (p >0.05). The overall mortality rate was 12.9%. Among deceased patients, the median age was 82 years and the median Charlson Comorbidity Index was 6. Considering the main predictors for mortality by COVID-19 (age, sex, and concomitant comorbidities), only patients with previous lung disease were more prevalent in the third period (p <0.01). Finally, higher intensive care unit admission rates, a lower rate of patients coming from nursing homes, and a lower rate of patients with dementia were noted in the third period (p <0.05) among deceased patients.

Conclusion: One year after the onset of the pandemic, the mortality rate of hospitalized patients and the profile of non-survivors have not changed significantly. In the absence of vaccine benefits, advanced age and multiple pathologies are uniform characteristics of non-survivors.

Keywords: COVID-19; Spain; comorbidities; mortality rate.

MeSH terms

  • Aged, 80 and over
  • COVID-19* / prevention & control
  • Comorbidity
  • Hospital Mortality
  • Humans
  • Pandemics / prevention & control
  • Retrospective Studies
  • SARS-CoV-2
  • Vaccination