For endometrioid ovarian cancer patients, the CBX3 mRNA expression level was irrelevant to OS and PFS (HR = 0.35 (0.06 - 2.09), P = 0.2278, HR = 0.54 (0.21 - 1.36), P = 0.1817). The gene discussed is CBX3; the disease is ovarian endometrioid adenocarcinoma.