An 18-Month Epidemiologic Survey of 3364 Deceased COVID-19 Cases; a Retrospective Cross-sectional Study

Ayoub Tavakolian1, Seyed Hassan Ashrafi Shahri2, Mohammad Ali Jafari3

  • 1Department of Emergency Medicine, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran.

Insights

COVID-19 deaths were more common in males, averaging 66.99 years old. Mortality rates were higher during day shifts and on workdays, with diabetes and cardiovascular disease as frequent comorbidities.

Area of Science:

  • Epidemiology
  • Public Health
  • Infectious Diseases

Background:

  • The COVID-19 pandemic posed a significant global health challenge.
  • Understanding the characteristics of deceased patients is crucial for public health strategies.

Purpose of the Study:

  • To analyze the demographic and clinical features of patients who died from COVID-19.
  • To identify patterns in mortality related to time of day, shifts, and holidays.

Main Methods:

  • A cross-sectional study of deceased COVID-19 patients at Imam Reza Hospital, Iran (March 2020 - September 2021).
  • Data collected included age, gender, symptoms, and time/day of death.
  • Analysis focused on demographic factors and confounding conditions like diabetes and cardiovascular disease.

Main Results:

  • 3364 COVID-19 deaths were recorded; 60.46% were male, with a mean age of 66.99 years.
  • Mortality was slightly higher during day shifts compared to night shifts.
  • Diabetes (22.44%) and cardiovascular diseases (15.36%) were the most prevalent comorbidities.

Conclusions:

  • COVID-19 mortality disproportionately affected males and older individuals.
  • Peak mortality occurred during daytime shifts and on workdays.
  • Comorbidities significantly influenced COVID-19 fatality rates.
Abstract

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