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Table 2 Birth year adjusted analyses of parental sociodemographic characteristics and childhood leukemia.

From: Parental and infant characteristics and childhood leukemia in Minnesota

 

Sub-cohort

ALL

AML

 

No. (%)

No. (%)

HR

95% CI

No. (%)

HR

95% CI

Maternal age (continuous/5 year increase)

8750

559

1.05

0.97–1.14

87

1.21

1.00–1.47

   missing

0

1

  

0

  

Maternal Race

       

   black

324 (4)

9 (2)

0.41

0.21–0.79

4 (5)

1.20

0.43–3.33

   other/unknown

519 (6)

30 (5)

0.87

0.60–1.28

6 (7)

1.16

0.50–2.68

   white

7907 (90)

520 (93)

ref.

77 (89)

ref.

   missing

0 (0)

1 (0)

  

0 (0)

  

Maternal birthplace

       

   U.S. or U.S. territory

8226 (94)

532 (95)

ref.

76 (87)

ref.

   foreign born

516 (6)

26 (5)

0.76

0.51–1.15

11 (13)

2.18

1.14–4.18

   missing

8 (0)

2 (0)

  

0 (0)

  

Maternal Education

       

   high school

3173 (38)

179 (34)

ref.

29 (36)

ref.

   <high school

902 (11)

49 (9)

0.96

0.69–1.33

8 (10)

0.97

0.44–2.14

   >high school

4209 (51)

301 (57)

1.21

1.00–1.47

44 (54)

1.13

0.70–1.81

   missing

466 (5)

31 (6)

  

6 (7)

  

Marital status

       

   married

6988 (80)

459 (82)

ref.

75 (86)

ref.

   not married

1754 (20)

100 (18)

0.84

0.67–1.05

12 (14)

0.61

0.33–1.13

   missing

8 (0)

1 (0)

  

0 (0)

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