Table 3 Univariate and multivariate Cox analysis of the clinical features of EOC patients in each set

 Age (≤55 vs > 55)

1.52

1.03–2.25

0.04

1.39

0.93–2.06

0.11

 Grade (G1 vs G2 vs G3 vs G4)

1.24

0.78–1.97

0.37

1.04

0.65–1.68

0.86

 Stage (Stage I vs Stage II vs Stage III vs Stage IV)

1.46

0.97–2.21

0.07

1.44

0.93–2.23

0.10

 Riskscore (high/low)

1.70

1.49–1.93

0.00

1.68

1.47–1.92

0.00

 Age (≤55 vs > 55)

1.14

0.69–1.88

0.61

1.16

0.70–1.93

0.56

 Grade (G1 vs G2 vs G3 vs G4)

2.09

0.84–5.20

0.11

2.08

0.83–5.22

0.12

 Stage (Stage I vs Stage II vs Stage III vs Stage IV)

1.21

0.76–1.92

0.43

1.13

0.68–1.87

0.63

 Riskscore (high/low)

1.47

1.14–1.89

0.00

1.47

1.15–1.88

0.00

 Age (≤55 vs > 55)

1.36

1.00–1.85

0.05

1.32

0.97–1.79

0.08

 Grade (G1 vs G2 vs G3 vs G4)

1.39

0.92–2.09

0.12

1.25

0.82–1.88

0.30

 Stage (Stage I vs Stage II vs Stage III vs Stage IV)

1.33

0.98–1.80

0.07

1.29

0.94–1.77

0.11

 Riskscore (high/low)

1.63

1.45–1.83

0.00

1.61

1.43–1.81

0.00