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Table 1 Frequency distributions of selected variables between the acute lymphoblastic leukemia cases and controls

From: Association between genetic polymorphism of XRCC7 (G6721T) and risk of acute lymphoblastic leukemia

Variables

Cases (n = 99)

Controls (n = 200)

OR (95% CI)

P value*

 

n (%)

n (%)

  

Gender

 Male

63 (63.6)

104 (52)

1.00

 

 Female

36 (36.4)

96 (48)

1.1 (0.21–0.75)

0.098

Parents’ smoking habit

 No

51 (51.5)

120 (64.2)

1.00

 

 Yes

48 (48.5)

67 (35.8)

1.77 (1.68–2.94)

0.027

Family cancer history**

 No

26 (57.8)

149 (78)

1.00

 

 Yes

19 (42.2)

42 (22)

2.608 (1.31–5.38)

0.006

  1. *P associated with either Student’s t test or chi-square test and Fisher’s exact test
  2. **Family history of acute lymphoblastic leukemia in the first-degree relatives