In the training cohort, univariate Cox regression analysis was performed and 12 variables were found to be associated with RFS in optimally debulked EOC patients, including age, histological grade (15), FIGO stage, residual tumor size, PLR, MLR, NLR, RDW-CV, TG, HDL, CA125, and HE4 (P < 0.05). Here, WFDC2 is linked to neoplasm.