Table 3 Cox regression analyses for progression-free survival and overall survival in patients without liver metastasis

EILD

Yes

3.35

0.0029

3.42

0.0079

No

1.51–7.44

1.38–8.47

Age

≦56≦56

0.64

0.11

0.67

0.20

>56

0.38–1.10

0.36–1.24

PS

0

0.84

0.58

0.68

0.24

1,2

0.46–1.55

0.36–1.30

Comorbid disease

Yes

1.59

0.15

1.47

0.32

No

0.85–2.99

0.69–3.15

DFI

≦2.8≦2.8

1.81

0.035

1.79

0.08

>2.8

1.04–3.15

0.93–3.45

BMI

>25

1.84

0.073

0.86

0.71

≦25≦25

0.95–3.57

0.38–1.93

HR (ER/PgR) status

Positive

1.23

0.46

1.12

0.73

Negative

0.71–2.13

0.58–2.15

HER2 status

Negative

1.69

0.14

2.14

0.054

Positive

0.84–3.39

0.99–4.66

EILD

Yes

3.93

0.063

3.42

0.13

No

0.93–16.6

0.71–16.44

Age

≦56≦56

0.81

0.59

0.89

0.78

>56

0.38–1.73

0.38–2.09

PS

0

1.73

0.20

1.51

0.36

1,2

0.75–4.02

0.63–3.63

Comorbid disease

Yes

1.14

0.76

1.17

0.76

No

0.48–2.71

0.44–3.09

DFI

≦2.8≦2.8

2.52

0.037

1.95

0.19

>2.8

1.06–5.98

0.73–5.25

BMI

>25

1.47

0.42

0.87

0.79

≦25≦25

0.59–3.62

0.32–2.40

HR (ER/PgR) status

Positive

1.54

0.28

0.97

0.95

Negative

0.71–3.34

0.42–2.28

HER2 status

Negative

2.49

0.057

2.20

0.13

Positive

0.97–6.39

0.79–3.09