Patients with stage IC/II tumors: association between ER expression and benefit from adjuvant chemotherapy. (A) Survival of women diagnosed with ovarian endometrioid carcinoma stage IC/II who did (n = 76, blue line) or did not receive adjuvant chemotherapy (n = 27, red line), log rank p = 0.32; (B) Survival of women diagnosed with ovarian endometrioid carcinoma stage IC/II with ER negative tumors who did (n = 10, blue line) or did not receive adjuvant chemotherapy (n = 3, red line), log rank p = 0.19; (C) Survival of women diagnosed with ovarian endometrioid carcinoma stage IC/II with ER negative tumors who did (n = 66, blue line) or did not receive adjuvant chemotherapy (n = 24, red line), log rank p = 0.76.