Frequency of ABO blood types in patients with Covid-19 referred to Ali Ibn Abitaleb Hospital in Rafsanjan in 2020

Corona virus, by targeting cellular antigens, causes severe infection and disease. The aim of this study was to evaluate the frequency of ABO blood types in patients with Covid-19.

In this descriptive study, 343 patients with Covid-19 admitted to Ali Ibn Abitaleb (AS) Hospital in Rafsanjan in the first half of 1399 were included in the study by available means. The study checklist including demographic characteristics, along with blood type, HRCT-based pulmonary involvement and disease severity based on clinical signs was completed. Data were analyzed using chi-square and logistic regression tests. The significance level of the tests was considered 0.05.

Out of 343 subjects, 108 (31.5%) were blood type B, 102 (29.7%) were blood type O, 98 (28.6%) were blood type A and 35 (10.2%) ) Had blood type AB. The results of regression analysis showed that the severity of the disease was 31.9% higher in people with blood type O than in people with blood type A. Also, the rate of pulmonary involvement in people with blood group B was 16% and people with blood group AB was 20.6% and people with blood group O were 39.8% lower than blood group A.

The chance of disease severity was lower in blood group B and higher in blood group O than blood group A, although this chance was not significant. Also, the severity of pulmonary involvement was lower in blood group O and higher in blood group AB than blood group A, which was not significant.