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Table 4 The association between gestational age and the risks of CNS tumors and leukemia

From: The association between high birth weight and the risks of childhood CNS tumors and leukemia: an analysis of a US case-control study in an epidemiological database

Gestational age

Controls

Cases

OR

95%CI

P value

Lower

Upper

For the analysis of CNS tumor risk

 

  < 37 weeks

54

9

1.5

0.6

3.9

0.405

 37–39 weeks

331

38

1

Reference

 

 40–41 weeks

366

20

0.3

0.2

0.6

<0.001

  > 41 weeks

71

5

0.4

0.1

1.0

0.048

      

P for trend = 0.001

For the analysis of Leukemia risk

  < 37 weeks

54

6

0.9

0.3

2.4

0.842

 37–39 weeks

331

51

1

Reference

  

 40–41 weeks

366

52

0.7

0.5

1.2

0.175

  > 41 weeks

71

15

1.2

0.6

2.3

0.659

      

P for trend = 0.930

  1. ORs and corresponding 95%CIs and p values were adjusted for sex, ethnicity, year of birth, age at diagnosis, maternal age, birth weight (5-category variable) and DOE sites