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Table 4 The survival benefits of postoperative adjuvant chemotherapy for patients in different risk groups

From: DWI-based radiomic signature: potential role for individualized adjuvant chemotherapy in intrahepatic cholangiocarcinoma after partial hepatectomy

Models

Endpoints (months)

High-risk group

Low-risk group

  

Only surgery

Surgery + adjuvant chemotherapy

p

Only surgery

Surgery + adjuvant chemotherapy

p

Radiomic signature

DFS

5.9

7.5

0.029

19.0

11.2

0.32

 

OS

16.8

32.6

0.088

34.2

35.3

0.82

CPR model

DFS

6.4

6.4

0.64

20.9

19.2

0.43

 

OS

19.3

24.3

0.61

29.3

NA

0.091

Radiomic nomogram

DFS

5.6

7.0

0.031

20.9

19.2

0.43

 

OS

16.8

32.6

0.023

39.0

35.2

0.62

  1. Median DFS and OS were calculated using Kaplan Meier method and the benefits of different treatment strategies were compared by two-sided log-rank tests. p values < 0.05 were considered statistically significant and are shown in bolded font
  2. CPR model clinicopathological and MR radiographic model, DFS disease-free survival, OS overall survival