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Table 2 Comparison between patients treated ≤ 6 months before vaccination and those treated > 6 months before vaccination regarding HLN stratified by examination time

From: Role of [18F] FDG PET-CT in detection of COVID-19 vaccine-associated hypermetabolic lymphadenopathy (VAHL) in lymphoma patients: with serologic testing correlation

  

Treated ≤ 6 months before vaccination

Treated > 6 months before vaccination

  

Week

HLN

No.

%

No.

%

Testa

p-value

First week

No HLN

1

16.7

3

6.0

 

Grade 1

3

50

20

40.0

  
 

Grade 2

2

33.3

19

38

  
 

Grade 3

0

0

7

14

  
 

Grade 4

0

0

1

2

  
 

Total

6

100

50

100

  

Second week

No HLN

9

90

8

44.4

 

Grade 1

1

10

6

33.3

  
 

Grade 2

0

0

2

11.1

  
 

Grade 3

0

0

1

5.6

  
 

Grade 4

0

0

1

5.6

  
 

Total

10

100

18

100

  

Third week

No HLN

20

100

13

81.25

 

Grade 1

0

0

2

12.50

  
 

Grade 2

0

0

1

6.25

  
 

Grade 3

0

0

0

0

  
 

Grade 4

0

0

0

0

  
 

Total

20

100

16

100

  

Total

No HLN

30

83.3

24

28.6

111.071

< 0.001

 

Grade 1

4

11.1

28

33.3

  
 

Grade 2

2

5.6

22

26.2

  
 

Grade 3

0

0

8

9.5

  
 

Grade 4

0

0

2

2.4

  
 

Total

36

100

84

100

  
  1. Categorical variables were expressed as number (percentage)
  2. aChi-square test; p < 0.05 is significant