Overexpression of STAT4 mRNA was significantly related to a favorable OS for all the ovarian cancer patients, HR =0.81 (0.70−0.92), P=0.0015 (Figure 4A), serous cancer patients, HR =0.78 (0.65−0.93), P=0.0054 (Figure 4B). Here, STAT4 is linked to ovarian cancer.