CXCR2 and polycystic ovary syndrome: The frequencies of CXCR2 rs2230054 C>T genotypes in PCOS patients and controls were as follows: in PCOS patients, CC (37.27%), GT (49.09%), and TT (13.63%); and in controls, GG (57.27%), CT (36.36%), and AA (6.36%), respectively (Table 3).