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Article

COVID-19 and Blood Groups: A Six-Months Observational Study in Ferrara, Italy

1
Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
2
Department of General Surgery, Ospedale del Delta, 44023 Lagosanto, Italy
3
Blood Transfusion Service, University Hospital of Ferrara Arcispedale Sant’Anna, Cona, 44124 Ferrara, Italy
4
Medical Department, Unit of Internal Medicine, University Hospital of Ferrara Arcispedale Sant’Anna, Cona, 44124 Ferrara, Italy
*
Author to whom correspondence should be addressed.
Hematol. Rep. 2021, 13(3), 9177; https://doi.org/10.4081/hr.2021.9177
Submission received: 12 April 2021 / Revised: 14 May 2021 / Accepted: 25 May 2021 / Published: 6 September 2021

Abstract

The current literature still gives a little information about the relationships between the ABO blood group system and the immune response to the virus or the different disease outcomes. Hypothesizing the presence of a predisposition by some blood groups to COVID-19, we searched for differences between patients towards the different outcomes of disease.We enrolled 330 inpatients with a diagnosis of COVID-19, determining both their ABO blood group system and Rh factor, collecting demographic, clinical and laboratory data. We searched for relationships with COVID-19 outcomes within an observation period of 180 days (Intensification of Care-IoC, Inhospital death, 180-days mortality). The most frequent ABO blood group was A (45.8%); a minor part was represented by group O (38.8%), B (11.5%), AB (3.9%). As for the Rh factor, 86.7% of patients were Rh-positive. There were no significant differences between blood groups and Rh factors as for age, length of hospital stays (LoS), or Charlson Comorbidity Index (CCI), nor we found significant relationships between the ABO groups and COVID-19 outcomes. A significant relation was found between AB group and IoC (p = 0.03) while as for the Rh factor, the patients with Rh factor positive died with less frequency during the stay (p = 0.03). Cox regression analyses showed substantial differences in the survival functions concerning the Rh factors. The Rh factor seems to be involved in the 180-day prognosis. The survival functions of patients with Rh factor positive show, in fact, significantly better curves when compared to those with Rh factor negative.
Keywords: coronavirus; COVID-19; Rh factor; blood groups coronavirus; COVID-19; Rh factor; blood groups

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MDPI and ACS Style

Greco, S.; Fabbri, N.; Bella, A.; Bonsi, B.; Violi, A.; Fortunato, V.; Govoni, M.; Graldi, G.; Passaro, A. COVID-19 and Blood Groups: A Six-Months Observational Study in Ferrara, Italy. Hematol. Rep. 2021, 13, 9177. https://doi.org/10.4081/hr.2021.9177

AMA Style

Greco S, Fabbri N, Bella A, Bonsi B, Violi A, Fortunato V, Govoni M, Graldi G, Passaro A. COVID-19 and Blood Groups: A Six-Months Observational Study in Ferrara, Italy. Hematology Reports. 2021; 13(3):9177. https://doi.org/10.4081/hr.2021.9177

Chicago/Turabian Style

Greco, Salvatore, Nicolò Fabbri, Alessandro Bella, Beatrice Bonsi, Alessandra Violi, Valeria Fortunato, Maurizio Govoni, Giuseppe Graldi, and Angelina Passaro. 2021. "COVID-19 and Blood Groups: A Six-Months Observational Study in Ferrara, Italy" Hematology Reports 13, no. 3: 9177. https://doi.org/10.4081/hr.2021.9177

APA Style

Greco, S., Fabbri, N., Bella, A., Bonsi, B., Violi, A., Fortunato, V., Govoni, M., Graldi, G., & Passaro, A. (2021). COVID-19 and Blood Groups: A Six-Months Observational Study in Ferrara, Italy. Hematology Reports, 13(3), 9177. https://doi.org/10.4081/hr.2021.9177

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