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Table 3 Cox regression analysis for progression-free survival grouped by low or high baseline levels using the median as a cutoff value

From: Neuropilin-1 and placental growth factor as prognostic factors in metastatic breast cancer

    

Progression-free survival

N

n

Age-adjusted

HR

95% CI

p value

Multivariable adjusted

HRa

95% CI

p value

NRP-1

ng/ml

        

 Low

≤ 236.3

26

10

1

  

1

  

 High

> 236.3

27

21

1.98

0.92–4.25

0.07

2.90

1.02–8.28

0.04

PlGF

pg/ml

        

 Low

≤ 24.7

27

15

1

  

1

  

 High

> 24.7

26

16

1.54

0.71–3.32

0.26

1.98

0.84–4.63

0.11

VEGF-A

pg/ml

        

 Low

≤ 101.9

26

12

1

  

1

  

 High

> 101.9

27

19

1.47

0.70–3.10

0.30

1.50

0.69–3.25

0.30

VEGF-C

ng/ml

        

 Low

≤ 1.6

28

16

1

  

1

  

 High

> 1.6

25

15

1.13

0.55–2.32

0.73

1.26

0.58–2.73

0.54

VEGF-D

pg/ml

        

 Low

≤ 260.5

26

13

1

  

1

  

 High

> 260.5

27

18

1.29

0.61–2.70

0.50

0.72

0.30–1.75

0.47

VEGFR-1

pg/ml

        

 Low

≤ 125.5

27

14

1

  

1

  

 High

> 125.5

26

17

1.66

0.81–3.39

0.16

1.56

0.67–3.61

0.29

VEGFR-2

ng/ml

        

 Low

≤ 11.0

27

19

1

  

1

  

 High

> 11.0

26

12

0.44

0.21–0.93

0.03

0.43

0.19–0.98

0.04

VEGFR-3

ng/ml

        

 Low

≤ 43.5

27

18

1

  

1

  

 High

> 43.5

26

13

0.88

0.42–1.82

0.74

0.58

0.23–1.41

0.23

  1. Abbreviations: N = number of patients, n = number of events, HR = hazard ratio, CI = confidence interval
  2. aMultivariable adjusted hazard ratio adjusted by age, menopausal status, hormone receptor status, presence of visceral metastasis, number of metastatic lesions and extent of the disease