Background: The aim of study was to look at ABO/Rh blood types frequency and prognostic significance in patients with HER2/neu positive gastric cancer.
Methods: The study was designed retrospectively. Clinicopathological characteristics, treatment approaches, and the ABO/Rh blood groups features were noted. The ABO/Rh blood types for patients and healthy donors were compared by the Chi-square method.
Results: The average age was 61 years. The average survival time was 17.9 months (13.2-22.5). ABO blood types frequencies were not similar between patients (25.9% O, 6.3% AB, 57.1% A, and 10.7% B) and control group (34.9% O, 7.9% AB, 41.9% A, and 15.3% B) (P = 0.01). Patients and controls had the same Rh factor distribution (P = 0.07).
Conclusions: We showed that A blood group frequency was increased in patients with HER2/neu receptor-positive gastric cancer than in a healthy population. Also, we detected that the frequency of O blood type was decreased. ABO/Rh blood types were not linked with prognosis for overall survival.
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