Relationship between ABO blood groups and mortality from SARS-CoV-2 infection in hospitalized patients

• Autores: Oscanoa, Teodoro J., Amado Tineo, José, Ayala García, Ricardo, Mamani Quiroz, Roxana, Matta Pérez, Javier, Ardiles Melgarejo, Angel, Marcos Hernández, Carlos, Taype Huamaní, Waldo, Rojas Guimaray, Jefferson, Matos Santiváñez, Sthephany, Miranda Chávez, Loyda, Deza Sime, Ana, Apolaya Segura, Moisés
• Formato: artículo
• Fecha de Publicación: 2022
• Institución: Universidad de San Martín de Porres
• Repositorio: Horizonte médico
• Lenguaje: español
• OAI Identifier: oai:horizontemedico.usmp.edu.pe:article/1698
• Enlace del recurso: https://www.horizontemedico.usmp.edu.pe/index.php/horizontemed/article/view/1698
• Nivel de acceso: acceso abierto
• Materia: Sistema de Grupo Sanguíneo ABO; COVID-19; Infecciones por coronavirus; Mortalidad; Factores de riesgo; ABO Blood-Group System; Coronavirus infections; Mortality; Risk factors

This study aimed to determine the relationship between ABO blood groups and mortality in patients hospitalized for severe SARS-CoV-2 infection. An observational and retrospective research was conducted in a tertiary care hospital in Lima, Peru. A total of 203 patients with a mean age of 62.58 ± 16.45 years were included in the research, out of whom 71.92 % were males. The frequency of O, A and B blood groups were 75.37 %, 17.24 % and 7.39 %, respectively. An association with mortality from severe COVID-19 infection was found with non-A blood groups (O group or B group), with a PR (prevalence ratio) of 2.25 and 95% CI (confidence interval) of 1.07 – 4.71. When adjusting the main variables, the association with PR remained in 2.78 and 95% CI in 1.06 – 7.24. In conclusion, patients hospitalized for severe SARS-CoV-2 infection with O and B blood groups seem to be associated with higher mortality rates than those with A blood group.