Table 6 Multivariate analyses of various prognostic factors.

Gender

Male

Female

1.81

0.24-2.47

< 0.001

Age (y)

≥70

<70

1.56

1.19-2.03

< 0.01

T status

3-4

1-2

1.97

1.47-02.64

< 0.0001

N status

Positive

Negative

2.62

2.02-3.39

< 0.0001

Histological type

ADSQ

Non- ADSQ

0.98

0.36-2.68

0.97

Double cancer

Yes

No

1.24

0.90-1.71

0.19

MPLC

Yes

No

1.15

0.69-1.93

0.58