Table 6 Multivariate Cox model for overall survival

Age

0.047

0.011

<0.001

1.048

1.024-1.073

Group

  Group B vs. Group A

0.23

0.33

0.5

1.25

0.66-2.40

PS

  1-2 vs. 0

1.4

0.42

<0.001

4.06

1.79-9.19

Stage

  IV vs. II-III

0.92

0.34

0.007

2.5

1.28-4.89

p-mTOR

  Positive vs. Negative

−0.76

0.38

0.044

0.47

0.22-0.98

ERCC1

  Positive vs. Negative

0.93

0.42

0.028

2.54

1.11-5.81