Skip to main content

Table 4 Subgroup analyses of total radiomics quality score assessed by the three independent readers

From: Systematic review with radiomics quality score of cholangiocarcinoma: an EuSoMII Radiomics Auditing Group Initiative

  

Reader 1

Reader 2

Reader 3

Group

N

RQS total

p value

RQS total

p value

RQS total

p value

Journal type

  

0.542

 

0.302

 

0.562

 Imaging

18

6.5 (0–14)

 

8.5 (4.5–13)

 

8 (1–14)

 

 Clinical

15

12 (8–13)

 

8 (4–13)

 

11 (5–13)

 

 Computer science

5

9 (1–9)

 

2 (−1 to 9.5)

 

11 (−2 to 11.5)

 

Publication year

  

0.772

 

0.322

 

0.352

 2021

21

9 (2–13)

 

9 (4.5–12.5)

 

12 (5.5–14)

 

 2013–2020

17

8 (0.5–14.5)

 

7 (0.5–12.5)

 

7 (3–13.5)

 

Journal quartile

  

0.787

 

0.510

 

0.814

 Q1

17

8 (0.5–14.5)

 

7 (2.5–13)

 

9 (3.5–14)

 

 Q2

14

11.5 (0.5–13)

 

10 (4.5–14)

 

8 (0.7–13.2)

 

 Q3

7

9 (2–9)

 

6 (2–10)

 

11 (6–14)

 

Impact factor

  

0.048

 

0.035

 

0.224

  ≤ 4

15

4 (−2 to 10)

 

6 (−1 to 9)

 

7 (−1 to 14)

 

  > 4

23

11 (3–15)

 

11 (5–13)

 

11 (6–14)

 

Cholangiocarcinoma

  

0.074

 

0.124

 

0.152

 Intrahepatic

29

8 (−0.5 to 12.5)

 

6 (2–12)

 

9 (2–13.5)

 

 Perihilar/extrahepatic

9

12 (8–15)

 

11 (7–13.5)

 

13 (7.5–14.5)

 

Imaging modality

  

0.361

 

0.206

 

0.067

 CT

20

11 (0.2–13.7)

 

10.5 (3.5–13.7)

 

13 (1.5–14)

 

 MRI/MRI and CT

18

8 (1.7–10.5)

 

7 (1.2–11.2)

 

6.5 (4.7–11.2)

 

Number of patients

  

 < 0.001

 

 < 0.001

 

 < 0.001

 ≤ 100

12

0.5 (−2 to 6.7)

 

2.5 (−1.7 to 5)

 

0.5 (−2.7 to 8.2)

 

 > 100

26

11.5 (8.7–15)

 

11 (7.5–13.2)

 

12.5 (7–14)

 
  1. Continuous variables are expressed as medians and interquartile range (25th to 75th  percentile) in parenthesis. Continuous variables were compared using the Kruskal–Wallis or the Mann–Whitney U test. Statistically significant values (p < 0.05) are highlighted in bold
  2. CT, Computed Tomography; MRI, Magnetic Resonance Imaging