Table 5.
Neuropsychological and behavioral test scores at age 5 by maternal IQ, child IQ or both*
| Model 1
|
Model 2
|
Model 3
|
||||
|---|---|---|---|---|---|---|
| Neuropsychological and behavioral test at age 5 | n | Mean± SD | 10 point Maternal IQ β (SE) | 10 point Child 5y IQ β (SE) | 10 point Maternal IQ β (SE) | 10 point Child 5y IQ β (SE) |
| NEPSY | ||||||
| Attention and executive | 565 | 87±18 | 2.5 (0.8) | 5.7 (0.6) | 0.7 (0.7) | 5.6 (0.7) |
| Language | 545 | 84±14 | 3.2 (0.6) | 6.6 (0.4) | 1.2 (0.5) | 6.3 (0.5) |
| Sensorimotor | 574 | 86±16 | 1.3 (0.6) | 5.9 (0.5) | −0.6 (0.6) | 6.0 (0.5) |
| Visuospatial | 587 | 90±13 | 1.5 (0.5) | 5.8 (0.4) | −0.5 (0.4) | 5.9 (0.4) |
| Memory | 573 | 88±15 | 3.5 (0.6) | 6.8 (0.4) | 1.3 (0.5) | 6.5 (0.5) |
| CPRS-R | ||||||
| Oppositional index | 619 | 58±14 | −1.2 (0.6) | −1.4 (0.4) | −0.8 (0.6) | −1.2 (0.4) |
| Hyperactivity index | 619 | 64±14 | −0.9 (0.5) | −1.4 (0.4) | −0.4 (0.5) | −1.3 (0.4) |
| ADHD index | 619 | 60±13 | −0.9 (0.5) | −2.6 (0.4) | 0.1 (0.5) | −2.6 (0.4) |
| Behavioral index | 619 | 61±12 | −1.0 (0.5) | −1.8 (0.4) | −0.4 (0.5) | −1.7 (0.4) |
*
Model 1, model 2 and model 3 all adjusted for clinic center, race, sex, language, parent’s education, parent’s employment, single parent, and concurrent blood lead level.