PGR and ovarian carcinoma: With regard to different detection methods of progesterone receptor in ovarian cancer, it was found that progesterone receptor expression was associated with a favorable OS of ovarian cancer in immunohistochemical staining group (n = 23, HR = 0.88, 95% CI = 0.79 to 0.96, P = 0.007, I2 = 71.5%).