Surgery in platinum-resistant recurrent epithelial ovarian carcinoma

Figure 2 Kaplan-Meier survival curves for subgroup analysis of progression-free survival. The absence of residual lesions after cytoreductive surgery (P = 0.001) and postoperative chemotherapy (P = 0.018) were associated with improved progression-free survival. A: Age (P = 0.824); B: Eastern collaborative oncology group score (P = 0.381); C: Pathological type (P = 0.114); D: Tumor differentiation (P = 0.708); E: Absence of residual lesions after cytoreductive surgery (P = 0.001); F: Postoperative chemotherapy (P = 0.018); G: Number of chemotherapy lines (P = 0.542); H: The number of previous surgeries (P = 0.543); I: Targeted drugs (P = 0.196). ECOG: Eastern collaborative oncology group.