Table 3: Risk estimate of DDE levels among cases in Romieu, et al. [15] study.

Quartiles

OR

95% CI

Q1 - Q2

1.24

0.5 - 3.06

Q1 - Q3

2.31

0.92 - 5.86

Q1 - Q4

3.81

1.14 - 12.8

Test of trend, p value = 0.02.