STAT3 and ovarian cancer: Consistent outcomes were found in the ovarian cancer biomarker subgroups (STAT3 and p-STAT3) (STAT3: HR =1.74, 95% CI =1.27–2.39, p = 0.001; p-STAT3: HR = 1.64, 95% CI = 1.36–1.98, p < 0.0001) (Fig. 12).