Impact of vaccination on ICU admissions of hospitalized COVID-19 patients in a country with a heterologous vaccine policy

Vaccination against coronavirus disease-19 (COVID-19) is highly effective in preventing severe disease and mortality. Adenoviral vector and mRNA vaccines were effective against intensive care unit (ICU) admission, but the effectiveness of inactivated vaccine on ICU admission was unclear. We aimed to...

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Veröffentlicht in:Journal of infection in developing countries 2024-04, Vol.18 (4), p.513-519
Hauptverfasser: Yıldırım, Süleyman, Kirakli, Cenk, Özdemir, Yeliz, Tosun, Selma, Ermin, Sinem, Polat, Gülru, Yılmaz, Celalettin, Bilaçeroğlu, Semra, Salık, Bilge, Kömürcüoğlu, Berna, Ödemiş, İlker, Köse, Şükran, Uzun, Uğur, Aydın, Gaye, İlhan, Enver
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container_end_page 519
container_issue 4
container_start_page 513
container_title Journal of infection in developing countries
container_volume 18
creator Yıldırım, Süleyman
Kirakli, Cenk
Özdemir, Yeliz
Tosun, Selma
Ermin, Sinem
Polat, Gülru
Yılmaz, Celalettin
Bilaçeroğlu, Semra
Salık, Bilge
Kömürcüoğlu, Berna
Ödemiş, İlker
Köse, Şükran
Uzun, Uğur
Aydın, Gaye
İlhan, Enver
description Vaccination against coronavirus disease-19 (COVID-19) is highly effective in preventing severe disease and mortality. Adenoviral vector and mRNA vaccines were effective against intensive care unit (ICU) admission, but the effectiveness of inactivated vaccine on ICU admission was unclear. We aimed to evaluate the effect of vaccination status on ICU admission in hospitalized COVID-19 patients in a country with heterologous vaccination policy. This is a retrospective multicenter study conducted in three hospitals in Izmir, Turkey between 1 January 2021 and 31 March 2022. Patients aged ≥ 18 years and hospitalized due to COVID-19 were included in the study. Patients who had never been vaccinated and patients who had been vaccinated with a single dose were considered unvaccinated. A logistic regression analysis was performed for evaluating risk factors for ICU admission. A total of 2,110 patients were included in the final analysis. The median age was 66 years (IQR, 53-76 years) and 54% of the patients were vaccinated. During the study period, 407 patients (19.3%) were transferred to the ICU due to disease severity. Patients who were admitted to the ICU were older (median age 68 vs. 65 years, p < 0.001); and the number of unvaccinated individuals was higher among ICU patients (57% vs. 45%, p < 0.001). In multivariate regression analysis, being unvaccinated was found to be the most important independent risk factor for ICU admission with an OR of 2.06 (95% CI, 1.64-2.59). Vaccination against COVID-19 is effective against ICU admission and hospital mortality.
doi_str_mv 10.3855/jidc.18342
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Adenoviral vector and mRNA vaccines were effective against intensive care unit (ICU) admission, but the effectiveness of inactivated vaccine on ICU admission was unclear. We aimed to evaluate the effect of vaccination status on ICU admission in hospitalized COVID-19 patients in a country with heterologous vaccination policy. This is a retrospective multicenter study conducted in three hospitals in Izmir, Turkey between 1 January 2021 and 31 March 2022. Patients aged ≥ 18 years and hospitalized due to COVID-19 were included in the study. Patients who had never been vaccinated and patients who had been vaccinated with a single dose were considered unvaccinated. A logistic regression analysis was performed for evaluating risk factors for ICU admission. A total of 2,110 patients were included in the final analysis. The median age was 66 years (IQR, 53-76 years) and 54% of the patients were vaccinated. During the study period, 407 patients (19.3%) were transferred to the ICU due to disease severity. Patients who were admitted to the ICU were older (median age 68 vs. 65 years, p &lt; 0.001); and the number of unvaccinated individuals was higher among ICU patients (57% vs. 45%, p &lt; 0.001). In multivariate regression analysis, being unvaccinated was found to be the most important independent risk factor for ICU admission with an OR of 2.06 (95% CI, 1.64-2.59). 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subjects Aged
Coronaviruses
COVID-19 - prevention & control
COVID-19 vaccines
COVID-19 Vaccines - administration & dosage
COVID-19 Vaccines - immunology
Female
Hospitalization
Hospitalization - statistics & numerical data
Humans
Immunization
Intensive Care Units
Male
Middle Aged
Mortality
Regression analysis
Retrospective Studies
Risk Factors
SARS-CoV-2 - immunology
Turkey
Vaccination - statistics & numerical data
title Impact of vaccination on ICU admissions of hospitalized COVID-19 patients in a country with a heterologous vaccine policy
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