High mRNA expression of STAT1 was related to a better OS in all the ovarian cancer patients, HR =0.84 (0.71−0.98), P=0.025, especially for serous ovarian cancer patients, HR =0.81 (0.68−0.95), P=0.0093, but not in endometrioid cancer patients, HR =300485201.86 (0−Inf), P=0.17. Here, STAT1 is linked to ovarian carcinoma.