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Table 2 Cox regression analysis.

From: Expression of the neuron-specific protein CHD5 is an independent marker of outcome in neuroblastoma

Overall Survival

      

Variable

HR and 95%CI

p-value

Variable

HR and 95%CI

p-value

Interaction p-value&

CHD5 IHC

21.28 (2.84-159.39)

0.003

    
   

CHD5 IHC

18.67 (2.27-153.88)

0.007

0.951

INSS

4.15 (1.63-10.58)

0.003

INSS

1.24 (0.46-3.29)

0.673

 
   

CHD5 IHC

15.17 (1.89-121.73)

0.011

0.931

Age (>12 m)

5.56 (1.61-19.19)

0.007

Age (>12 m)

2.14 (0.59-7.75)

0.249

 
   

CHD5 IHC

12.29 (1.56-96.49)

0.017

0.952

MYCN (*)

14.27 (4.28-47.58)

< 0.001

MYCN (*)

8.08 (2.43-26.93)

0.001

 
   

CHD5 IHC

14.33 (1.84-111.48)

0.011

0.946

LOH(**)

2.88 (1.04-7.96)

0.042

LOH(**)

1.75 (0.63-4.89)

0.287

 

Event Free Survival

      

Variable

HR and 95%CI

p-value

Variable

HR and 95%CI

p-value

Interaction p-value &

CHD5 IHC

8.14 (2.82-23.5)

<0.001

    
   

CHD5 IHC

7.01 (2.09 to 23.51)

0.002

0.939

INSS

3.7 (1.73-7.88)

0.001

INSS

1.26 (0.53 to 2.97)

0.605

 
   

CHD5 IHC

7.04 (2.24 to 22.09)

0.001

0.638

Age (>12 m)

3.13 (1.33-7.39)

0.009

Age (>12 m)

1.36 (0.54 to 3.44)

0.515

 
   

CHD5 IHC

5.97 (1.98 to 17.98)

0.001

0.933

MYCN (*)

4.58 (1.84-11.42)

0.001

MYCN

2.72 (1.07 to 6.88)

0.035

 
   

CHD5 IHC

6.02 (1.98 to 18.34)

0.002

0.492

LOH(**)

2.12 (0.92-4.91)

0.079

LOH

1.24 (0.52 to 2.95)

0.622

 
  1. Cox regression analysis of the NB cohort using CHD5 protein expression and clinical and biologically relevant variables (INSS stage, patient age at diagnosis, MYCN amplification status and chromosome 1p LOH). Expression of CHD5 was statistically significantly associated with overall survival and event-free survival in both the univariate and multivariate analyses. All NB patients (n = 63) where included in the study except for the studies with MYCN amplification (n = 58) and 1p LOH (n = 53), due to the undetermined status in some patients. IHC = Immunohistochemical analysis; INSS = International Neuroblastoma Staging System; HR = hazard ratio; CI = confidence interval. P-values are two sided. (&) Interaction P-values obtained from Cox regression model: IHC + Co-factor+IHC*Co-factor. (*) data available for 58 patients; (**) data available for 53 patients.