Epidemiological Study of COVID-19 Cases Admitted to Baqiyatallah Hospital during 2019-2020

An outbreak of COVID-19 in Iran has spread throughout the country. Identifying the epidemiological characteristics of this disease will help to make appropriate decisions and thus control the epidemic. The aim of this study was characterization of the epidemiological features of COVID-19 in Iran.

In this epidemiological study, the epidemiological data related to COVID-19 patients admitted to Baqiyatallah Hospital in Tehran, Iran, from 19 February 2020 to 30 Nov 2021 have been analyzed. Patient variables including gender, age and comorbidities were studied. Case Fatality Rate (CFR) was also determined.

From February 19, 2020 to 30 Nov 2021, 22157 were hospitalized with COVID-19 diagnosis. The average length of stay in the hospital was 5 days. The average age of hospitalized people is 55 years. 65% of cases were men (12,756) and 35% (9,401) were women. The highest number of deaths was in the age group of 60 to 70 years. 2112 deaths due to COVID-19 have occurred until December 9, 1400. Therefore, CFR was calculated as 9.53. CFR in men and women was calculated as 10.77 and 7.85, respectively. Also, the highest CFR was observed in the age group above 80 years (25.30%) and the lowest was observed in the age group of 10 to 20 years.

It is important to pay special attention to male elderly patients with COVID-19. Therefore, it is very important to pay special attention to elderly men with covid-19 in prevention and treatment protocols.