Dependent variables

Equation of regression

P-value

Adjusted R²

ADHD-I

4.776 + 2.151 × Pb ppm

0.036

0.058

ADHD-H

3.929 + 3.145 × Pb ppm

0.04

0.123

ADHD-C

0.167 + 0.378 × Pb ppm

0.01

0.147

FSIQ

108.384 − 10.347 × Pb ppm

0.014

0.084

EQ

105.278 − 7.743 × Pb ppm

0.01

0.153