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Article

Analysis of Experiences in Preventing COVID-19 in Hemodialysis Centers of the North of Poland before the Era of Vaccination

1
Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland
2
Dialysis Unit, 7th Naval Hospital in Gdańsk, 80-305 Gdańsk, Poland
*
Author to whom correspondence should be addressed.
Academic Editors: Prisco Piscitelli, Ivan Gentile, Alessandro Miani and Loreto Gesualdo
Int. J. Environ. Res. Public Health 2022, 19(2), 684; https://doi.org/10.3390/ijerph19020684
Received: 25 November 2021 / Revised: 17 December 2021 / Accepted: 30 December 2021 / Published: 7 January 2022
(This article belongs to the Special Issue COVID-19: COVID-19 Epidemiological and Clinical Challenges)
Background: The appearance of very contagious SARS-CoV-2 variants and waning vaccine immunity may indicate the need to return to using universal methods of preventing the spread of COVID-19. Methods: We performed a multicenter retrospective cohort survey study to describe the methods used in dialysis units to prevent and control the spread of SARS-CoV-2 and also the association between these methods and the incidence of COVID-19 among hemodialyzed (HD) patients before the era of vaccination. The study population included all maintenance HD patients (n = 1569) in 14 dialysis units in the Pomeranian Voivodeship. Results: The group of 352 patients (199 men, 153 female) were confirmed for COVID-19. The absolute cumulative incidence in the studied period was 22.4%. It varied widely by dialysis units, ranging from 9.4% to 36.9%. Universal preventive methods were applied by all units. Different additional methods were implemented in some stations with varying frequency (36–86%). In order to quantify the scale of the applied additional preventive methods, we calculated a summary prevention index (PI), i.e., one point for one additional method. Lower incidence was found in centers applying dialysis in isolation of patients hospitalized due to diseases requiring hospitalization (17.42% ± 6.89 vs. 26.54 ± 6.34; p = 0.028) and higher incidence in medium-size dialysis centers (ANOVA F: p = 0.017). Significant inverse correlation between PI and incidence was demonstrated as well (r = −0.759; p = 0.002). Conclusions: The higher the number of implemented preventive measures, the lower the risk of COVID-19 infection in HD patients. Among applied procedures the isolation of hospitalized patients is of significant importance. The measures proved to be effective in prevention before the vaccination era should be continued, as the threat of SARS-CoV-2 still exists. View Full-Text
Keywords: hemodialysis; COVID-19; prevention; epidemiology; incidence hemodialysis; COVID-19; prevention; epidemiology; incidence
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MDPI and ACS Style

Biedunkiewicz, B.; Tylicki, L.; Puchalska-Reglińska, E.; Dębska-Ślizień, A. Analysis of Experiences in Preventing COVID-19 in Hemodialysis Centers of the North of Poland before the Era of Vaccination. Int. J. Environ. Res. Public Health 2022, 19, 684. https://doi.org/10.3390/ijerph19020684

AMA Style

Biedunkiewicz B, Tylicki L, Puchalska-Reglińska E, Dębska-Ślizień A. Analysis of Experiences in Preventing COVID-19 in Hemodialysis Centers of the North of Poland before the Era of Vaccination. International Journal of Environmental Research and Public Health. 2022; 19(2):684. https://doi.org/10.3390/ijerph19020684

Chicago/Turabian Style

Biedunkiewicz, Bogdan, Leszek Tylicki, Ewelina Puchalska-Reglińska, and Alicja Dębska-Ślizień. 2022. "Analysis of Experiences in Preventing COVID-19 in Hemodialysis Centers of the North of Poland before the Era of Vaccination" International Journal of Environmental Research and Public Health 19, no. 2: 684. https://doi.org/10.3390/ijerph19020684

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