Abstract
To investigate the impact of the AB0 and the Rhesus blood group system on outcomes of urothelial carcinoma of the bladder (UCB) patients treated with radical cystectomy (RC). We included 511 UCB patients treated with RC without neoadjuvant chemotherapy from 1996 to 2011 at our institution. Cox and logistic regression models assessed the association of the AB0 blood group antigen and Rhesus factor expression with tumor biologic features and outcomes, respectively. In total, 216 patients (42.3 %) had the blood group antigen A0, 73 patients (14.3 %) the antigen B0, 33 patients (6.4 %) the antigen AB and 189 patients (37.0 %) the antigen 00. In addition, 414 patients (81.0 %) were Rhesus factor positive. The AB0 blood group antigen expression was associated with a higher tumor grade (p = 0.003). In contrast, the Rhesus factor was not associated with any clinicopathologic characteristics. Neither the AB0 blood group antigens nor the Rhesus factor was associated with survival. In a sensitivity analysis of patients receiving adjuvant chemotherapy, however, the blood group antigen AB expression was associated with reduced cancer-specific and overall survival. The AB0 blood group antigens and the Rhesus factor are not associated with su...Continue Reading
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