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Table 3 Multivariable Cox proportional hazards models for predicting post-operative outcomes in the development set

From: Prognostic value of CT-based radiomics in grade 1–2 pancreatic neuroendocrine tumors

Outcome

Variable

C-model

 

CR-model

 

HR (95% CI)

P value

HR (95% CI)

P value

Recurrence-free survival

     
 

Age

1.005 (0.985–1.025)

0.626

1.004 (0.984–1.024)

0.703

 

AJCC stage

 

< 0.001

 

< 0.001

 

 I

1 (Ref)

 

1 (Ref)

 
 

 II

2.989 (1.422–6.286)

0.004

0.881 (0.369–2.107)

0.777

 

 III

9.542 (4.166–21.854)

< 0.001

2.947 (1.176–7.386)

0.021

 

 IV

17.288 (6.602–45.269)

< 0.001

4.862 (1.725–13.709)

0.003

 

R-score

3.681 (2.353–5.759)

< 0.001

Overall survival

     
 

Age

1.054 (1.021–1.088)

0.001

1.057 (1.023–1.092)

0.001

 

AJCC stage

 

0.011

 

0.101

 

 I

1 (Ref)

 

1 (Ref)

 
 

 II

1.408 (0.631–3.144)

0.404

0.609 (0.222–1.668)

0.334

 

 III

3.224 (1.164–8.930)

0.024

1.264 (0.387–4.124)

0.698

 

 IV

7.509 (2.344–24.058)

0.001

2.564 (0.670–9.814)

0.169

 

R-score

2.296 (1.322–3.989)

0.003

  1. AJCC, American Joint Committee on Cancer; C-model, clinical model; CR-model, clinical-radiomics model; CI, confidence interval; HR, hazard ratio; R-score, radiomics score