Group n PITX2 F  P Epithelial ovarian cancer group 42 12.18 ± 2.38     Benign ovarian tumor group 37 7.83 ± 1.9     Normal ovarian group 35 7.25 ± 2.24 59.66 <0.01

Table 5: The preoperative serum level of PITX2 in epithelial ovarian cancer group, benign ovarian tumor group and normal ovarian group ( χ ± s ng/ml)