Table 5 Univariate and multivariate analysis of the factors correlated with overall survival (OS) of HGSOC patients

Age (≥ 60)

1.39

0.80–2.49

0.24

Tumor size

< 5 cm

1

1

5-10 cm

4.20

0.93–18.92

0.62

>10 cm

11.34

2.53–50.79

< 0.01

11.76

2.48–55.87

< 0.01

FIGO stage

I+II

1

1

III+IV

10.73

1.48–77.64

0.02

7.91

1.07–86.66

0.04

TGFBIp expression

4.92

2.67–9.04

< 0.01

3.67

1.98–6.82

< 0.01

Ki67 expression

1.53

0.90–2.61

0.12

EGFR expression

0.68

0.41–1.13

0.14

PDL1 expression

1.28

0.74–2.21

0.37