Table 4 Multivariate analysis of potential prognostic factors for overall survival of 99 advanced serous epithelial ovarian carcinoma patients

1. FIGO staging

   III

1

-

0.4602

   IV

1.47

0.54 – 3.97

2. Histologic grade

   1

1

-

0.9456

   2

0.96

0.50 – 1.84

   3

1.11

0.50 – 2.46

3. Residual tumor (cm)

   None

1

-

0.3522

   >0 – 1

2.63

0.86 – 1.84

   >1 – 2

0.74

0.13 – 4.11

   >2

1.28

0.59 – 2.79

4. Chemotherapy response

   Complete

1

-

0.0038

   Partial

0.61

0.22 – 1.72

   Stable

2.29

0.86 – 6.13

   Progressive

2.93

1.53 – 5.62

5. WT1 staining

   No

1

-

0.0138

   Yes

1.98

1.28 – 3.79