Table 2.
Geometric means of blood lead concentration among ADHD cases and controls
| Blood lead concentrations | Range (μg/dℓ) | Mean ± SD | p-value | Cohen’s D |
|---|---|---|---|---|
| Cases | 0.37–5.35 | 1.90 ± 0.86 | 0.003 | 0.40 |
| Controls | 0.18–3.41 | 1.59 ± 0.68 |
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