Compared to healthy donors, the patient’s genotypic frequency was lower for HLA-A*02, HLA-A*11, HLA-B*35, HLA-DR*01, HLA-DR*07, HLA-DR*13, and HLA-DR*15 (p < 0.05), which means that even though HLA-B*35 was frequent in psoriatic arthritis, it's frequency was lower when compared to that of healthy controls. The gene discussed is HLA-B; the disease is psoriatic arthritis.