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The Clinical Course and Outcomes of Patients Hospitalized Due to COVID-19 during Three Pandemic Waves in Poland: A

Carlo Bieńkowski1,2, Justyna D Kowalska1,2, Marcin Paciorek1,2

  • 1Hospital for Infectious Diseases in Warsaw, 01-201 Warsaw, Poland.

Journal of Clinical Medicine
|December 23, 2022
PubMed

Insights

Patients hospitalized with COVID-19 during Poland's third pandemic wave experienced more severe illness and worse outcomes, including higher rates of serious complications and death.

Area of Science:

  • Infectious Diseases
  • Epidemiology
  • Public Health

Background:

  • The first case of COVID-19 in Poland was reported on March 4, 2020.
  • This study focuses on patients hospitalized at the Hospital for Infectious Diseases in Warsaw.

Purpose of the Study:

  • To compare the clinical course and outcomes of COVID-19 patients across three pandemic waves.
  • To analyze demographic and clinical data of hospitalized COVID-19 patients in Warsaw.

Main Methods:

  • Retrospective analysis of 2138 COVID-19 patient records from March 2020 to November 2021.
  • COVID-19 diagnosis confirmed via RT-PCR or antigen testing.
  • Pandemic waves defined by case numbers and dynamics.

Main Results:

  • The third wave cohort (n=2138) had lower oxygen saturation and higher oxygen supplementation needs.
  • Increased incidence of pneumothorax, thromboembolic events, ICU admission, and mortality observed in the third wave.
  • Majority of patients were male (57.8%), median age 65 years.

Conclusions:

  • COVID-19 patients during the third wave in Warsaw faced a more severe disease course.
  • Outcomes were poorer for patients hospitalized during the third pandemic wave.

Keywords:
COVID-19SARS-CoV-2epidemic wavespandemic

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