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Table 6 Mann–Whitney Test

From: Role of diffusion MRI in diagnosis of mediastinal lymphoma: initial assessment and response to therapy

 

Ranks

Pathology

N

Mean rank

Sum of ranks

p value

ADC of paratracheal

Hodgkin

5

4.00

20.00

 

Non Hodgkin

2

4.00

8.00

1.000

Total

7

   

ADC prevascular

Hodgkin

6

4.50

27.00

0.134

Non Hodgkin

1

1.00

1.00

 

Total

7

   

ADC hilar

Hodgkin

6

3.50

21.00

 

Non Hodgkin

0a

.00

.00

Total

6

   

ADC value average

Hodgkin

21

19.33

406.00

 

Non Hodgkin

10

9.00

90.00

0.003

Total

31

   

ADC mediastinal Mass average

Hodgkin

22

14.48

318.50

 

Non Hodgkin

10

20.95

209.50

0.046

Total

32

   

ADC anterior mediastinal mass

Hodgkin

7

5.14

36.00

 

Non Hodgkin

5

8.40

42.00

0.123

Total

12

   
  1. aMann–Whitney Test cannot be performed on empty groups