Figure 2.

Maternal serum DDE during the third trimester and McCarthy Scales of Children’s Ability components according to age at evaluation. Interactions between serum DDE (continuous) and age at examination for each McCarthy component estimated through mixed-effects multivariate models. All models were adjusted for child’s age at examination, mother’s education and marital status when child was 4 years old, and HOME score. Additionally, the GCI model was adjusted by sex of child and attendance at a child care center; the quantitative model also was adjusted by maternal IQ and child’s birth weight; the verbal model also was adjusted by maternal age and IQ, birth weight, infant height at the time of the evaluation, and attendance at a child care center; the memory model also included maternal age and IQ, birth weight, and attendance at a child care center.