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Table 2 Multivariate logistic regression analysis to assess clinical factors affecting the duration of best response

From: Analysis of the response time to involved-field radiotherapy in primary gastrointestinal low-grade B-cell lymphoma

Characteristics

Early responder

(n = 35)

Delayed responder

(n = 8)

P-valuea

Age

  

0.255

  ≤ 60 years old (n = 29)

25 (71.4)

4 (50.0)

 

  > 60 years old (n = 14)

10 (28.6)

4 (50.0)

Sex

  

0.167

 Male (n = 20)

18 (51.4)

2 (25.0)

 

 Female (n = 23)

17 (48.6)

6 (75.0)

Initial LDH ≥500 U/L

  

0.302

  < 500 U/L (n = 41)

34 (97.1)

7 (87.5)

 

  ≥ 500 U/L (n = 2)

1 (2.9)

1 (12.5)

Initial Lugano staging

  

0.230

 Stage I (n = 38)

32 (91.4)

6 (75.0)

 

 Stage II1 (n = 5)

3 (8.6)

2 (25.0)

Initial IPI score

  

0.076

 0 (n = 28)

25 (71.4)

3 (37.5)

 

 1 (n = 15)

10 (28.6)

5 (62.5)

Initial 18F-FDG uptake SUVmax ≥3

  

0.328

  < 3 (n = 24)

20 (57.1)

4 (50.0)

 

  ≥ 3 (n = 13)

9 (25.7)

4 (50.0)

 N/A (n = 6)

6 (17.1)

0

Initial nodal involvement

  

0.230

 No (n = 38)

32 (91.4)

6 (75.0)

 

 Yes (n = 5)

3 (8.6)

2 (25.0)

Primary tumor site

  

0.479

 Stomach (n = 36)

30 (85.7)

6 (75.0)

 

 Duodenum (n = 7)

5 (14.3)

2 (25.0)

H.pylori infection

  

0.255

 Negative (n = 29)

25 (71.4)

4 (50.0)

 Positive (n = 14)

10 (28.6)

4 (50.0)

 
  1. LDH lactate dehydrogenase; IPI International prognostic index; 18F-FDG 18F-fluorodeoxyglucose; SUVmax maximum standardized uptake value; N/A not available
  2. a Multivariate logistic regression analysis