Table 5 Multivariate Cox model for progression-free survival

Age

0.042

0.011

<0.001

1.043

1.020-1.065

Group

  Group B vs. Group A

0.41

0.33

0.21

1.5

0.89-2.84

PS

  1-2 vs. 0

1.5

0.41

<0.001

4.47

1.98-10.01

Stage

  IV vs. II-III

0.95

0.33

0.005

2.58

1.34-4.96

p-mTOR

  Positive vs. Negative

−0.8

0.33

0.031

0.45

0.22-0.93

ERCC1

  Positive vs. Negative

1.02

0.41

0.013

2.79

1.24-6.29