Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05384886 |
Other study ID # |
IRB-867 |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
January 1, 2022 |
Est. completion date |
May 19, 2022 |
Study information
Verified date |
May 2022 |
Source |
Izmir Katip Celebi University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Novel coronavirus disease (COVID-19), caused by Severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) virus, was first reported in December 2019 in Wuhan, China. The disease has
spread to many countries in a few weeks and has become a global public health problem. By
2022, the virus has infected more than 500 million people worldwide and caused more than 6
million deaths.
Case fatality rates (CFR) are an important index that helps to understand the epidemiological
characteristics of an epidemic. In the data coming in 2020, COVID-19 CFR values were
generally reported in the range of 0.001-0.706. However, from 2019 to 2022, there were 2
major changes that could affect the CFR of the disease. The first of these is vaccine
applications, and the second is the new variants of SARS-CoV-2, which appeared first. From
2019 to 2022, it is likely that there will be a change in the mortality of COVID-19 in
relation to both the vaccines administered and the new variants emerging. However, the data
on this subject are not clear yet and more studies are needed.
The aim of this study is to determine whether there is a change in the mortality of COVID-19
from 2019, when it first appeared, to 2022.
Description:
Novel coronavirus disease (COVID-19), caused by Severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) virus, was first reported in December 2019 in Wuhan, China. The disease spread
to many countries in a few weeks, becoming a global public health problem, and the World
Health Organization declared it a pandemic on March 11, 2020. COVID-19 has caused widespread
deaths worldwide, especially by causing widespread involvement in the lungs and Acute
Respiratory Distress Syndrome. By 2022, the virus has infected more than 500 million people
worldwide and caused more than 6 million deaths.
Case fatality rates (CFR) are an important index that helps to understand the epidemiological
characteristics of an epidemic. The CFR for COVID 19 is the number of deaths in COVID-19
cases divided by the total number of people infected with COVID-19. After the emergence of
the disease in 2019, the CFR figures reported for COVID-19 in 2020 began to become clear. In
the data coming in 2020, COVID-19 CFR values are generally reported in the range of
0.001-0.706. However, from 2019 to 2022, there were 2 major changes that could affect the CFR
of the disease. The first of these is the vaccine applications developed against COVID-19.
The first vaccine studies have matured by 2020 and started to be applied widely in the world
in 2021. the second is the new variants of the first emerging SARS-CoV-2. In 2021, variants
started to be defined and Alpha, Beta, Delta, and Omicron variants were reported as dominance
variants from time to time. From 2019 to 2022, it is likely that there will be a change in
the mortality of COVID-19 in relation to both the vaccines administered and the new variants
emerging. Knowing the possible changes that may occur in COVID-19 mortality may cause changes
in the COVID-19 measures applied all over the world. In this way, it may be possible to
reduce unnecessary health costs and direct health resources to appropriate areas.
The aim of this study is to determine whether there is a change in the mortality of COVID-19
from 2019, when it first appeared, to 2022.
In this study, patient data were obtained retrospectively in a training and research hospital
COVID-19 outpatient clinic. The obtained daily number of patients in 2020, CFR rates were
compared with the number of daily patients and CFR rates in 2022. In this way, it was tested
whether there was a significant difference between the year 2020, when the disease first
became widespread, and 2022.