Table 5 Exploratory analyses summary

From: Raltitrexed–eloxatin salvage chemotherapy in gemcitabine-resistant metastatic pancreatic cancer

    

Univariate

Multivariate

Variable

Subgroups

No. of patients

1 year OS (%)

P

HR

95% CI

P

PFS

<6 months

22

0.0

    
 

6 months

19

21.1

0.0035

4.27

1.56–11.67

0.007

Surgery

Yes

18

22.2

    
 

No

23

0.0

0.0049

2.26

0.48–10.79

0.31

CHT lines

1

6

11.4

    
 

>1

35

0.0

0.1278

1.49

0.38–5.83

0.58

Age

60

19

15.8

    
 

>60

22

4.5

0.3362

1.27

0.50–3.21

0.62

Gender

Male

23

17.4

    
 

Female

18

0.0

0.0296

0.52

0.23–1.19

0.13

PS

90–100

25

12.0

    
 

70–80

16

6.2

0.2882

1.29

0.49–3.38

0.61

Radiotherapy

Yes

14

11.1

    
 

No

27

7.1

0.3601

0.78

0.34–1.80

0.56

No. of lesions

2–5

24

4.2

    
 

>5

16

18.8

0.4529

0.62

0.18–2.12

0.45

Site: liver

Yes

33

9.1

    
 

No

8

12.5

0.4891

0.96

0.32–2.88

0.94

Site: lung

Yes

12

16.7

    
 

No

29

6.9

0.4457

1.06

0.31–3.58

0.93

Site: pancreas

Yes

26

0.0

    
 

No

15

26.7

0.0011

8.46

1.34–53.4

0.03

Site: peritoneum

Yes

5

0.0

    
 

No

36

11.1

0.3860

0.37

0.08–1.76

0.22

No. of sites

1

7

42.9

    
 

>1

34

2.9

0.0080

0.70

0.14–3.42

0.66

  1. No.=number; CHT=chemotherapy; PFS=progression-free survival; OS=overall survival; PS=performance status; HR=hazard ratio; CI=confidence interval.