Survival analysis of these 67 hub genes using the Kaplan-Meier Plotter website, revealed that only two genes were significantly associated with ovarian cancer survival and prognosis, WDR62 (HR = 1.46, P < 0.05) and CKAP2 (HR = 1.39, P < 0.05) (Fig. 1G). This evidence concerns the gene CKAP2 and ovarian cancer.