| Objective:
Association of ABO blood type with occurrence of pulmonary embolism (PE) has been demonstrated, and asso-ciation of blood type with disease mortality and morbidity hasrecently been reported. Presently described was a retrospec-tive study of mortality and morbidity according to blood group.
Methods:Blood type and medical data of 230 patients with confirmed PE was abstracted from medical records. Two con-trol groups were used for data analysis; the 1st included blood donors (Control 1), the 2nd included hospital staf f born in the
same region (Control 2).
Results:In PE patients, blood group A was the most common phenotype (46.1%), followed by blood groups O (25.2%), B (20.4%), and AB (8.2%). Among the control groups, no signifi - cant difference was found in distribution of A vs non-A (36.4%vs 36.6%, respectively) or O vs non-O (66.6% vs 66.4%,respectively)blood groups. Blood group A was significantly more prevalent than non-A in patients with PE, compared to both control groups (p=0.002 and 0.03, respectively), and blood group O was significantly less prevalent than non-O in
patients with PE, compared with both control groups (p=0.009 and 0.04, respectively). No significant difference was found in PE patients regarding in-hospital and midterm (6–36 months follow-up) mortality (p=0.36 and 0.15, respectively) based on blood groups. Conclusion:Blood group A was significantly more common, and blood group 0 significantly less common, in patients with PE. No association was found regarding blood type and in-hospital outcome or midterm mortality. |