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Table 1 Frequency distribution of selected characteristics of study subjects According to case-control status

From: PARP-1 Val762Ala polymorphism is associated with reduced risk of non-Hodgkin lymphoma in Korean males

Characteristic

Cases

Controls

P value

No.(%)

573 (100)

721 (100)

 

Age, no.(%)

   

15-49 y

179 (31.2)

201 (27.9)

 

50-64 y

226 (39.4)

286 (39.7

 

≥ 65 y

168 (29.3)

234 (32.5)

0.33

   Mean(yr.) ± SD

55.0 ± 14.6

56.0 ± 15.3

 

   Range

15.0-90.0

17.0-82.5

 

Sex

   

Male

336 (58.6)

417 (57.8)

 

Female

237 (41.4)

304 (42.2)

0.77

NHL tumor pathology

   

   All B-cell lymphoma

451

NA

NA

Diffuse large B-cell

330

NA

NA

Marginal zone*

69

NA

NA

Follicular

17

NA

NA

Mantle cell

12

NA

NA

Small lymphocytic

8

NA

NA

Burkitt lymphoma

3

NA

NA

OthersB

12

NA

NA

   All T-cell lymphoma

122

NA

NA

Peripheral T-cell

55

NA

NA

OthersT

67

NA

NA

  1. P values for differences in socio-demographic characteristics between cases and controls.
  2. NA indicates not applicable. Marginal zone* includes marginal zone B-cell lymphoma (n = 12) and mucosa-associated lymphoid tissue (MALT) (n = 57). OthersB includes B-cell prolymphocytic leukemia (n = 1) and undetermined B-cell lymphoma (n = 11). OthersT includes all T-cell lymphoma (n = 67) except for peripheral T-cell lymphoma.