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Table 2 Cox regression analysis for overall 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

    

Overall 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

13

1

  

1

  

 High

> 236.3

27

26

2.78

1.40–5.53

0.003

2.54

1.11–5.82

0.02

PlGF

pg/ml

        

 Low

≤ 24.7

27

18

1

  

1

  

 High

> 24.7

26

21

2.08

0.99–4.37

0.05

3.11

1.30–7.47

0.01

VEGF-A

pg/ml

        

 Low

≤ 101.9

26

18

1

  

1

  

 High

> 101.9

27

21

1.45

0.76–2.75

0.25

1.24

0.62–2.45

0.53

VEGF-C

ng/ml

        

 Low

≤ 1.6

28

20

1

  

1

  

 High

> 1.6

25

19

1.12

0.59–2.11

0.71

1.06

0.53–2.14

0.85

VEGF-D

pg/ml

        

 Low

≤ 260.5

26

18

1

  

1

  

 High

> 260.5

27

21

1.24

0.65–2.39

0.50

0.95

0.45–2.01

0.91

VEGFR-1

pg/ml

        

 Low

≤ 125.5

27

17

1

  

1

  

 High

> 125.5

26

22

1.90

0.98–3.67

0.05

1.10

0.50–2.40

0.79

VEGFR-2

ng/ml

        

 Low

≤ 11.0

27

20

1

  

1

  

 High

> 11.0

26

19

0.77

0.41–1.46

0.43

0.65

0.33–1.28

0.22

VEGFR-3

ng/ml

        

 Low

≤ 43.5

27

16

1

  

1

  

 High

> 43.5

26

23

2.34

1.23–4.47

0.01

1.81

0.88–3.73

0.10

  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