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An asymptomatic middle-school-age boy with a blood lead concentration of 173 microg/dL

Yan Chin1, Valerie Charlton

  • 1Childhood Lead Poisoning Prevention Branch, California Department of Health Services, Oakland, CA 94612, USA.

Clinical Pediatrics
|March 17, 2004
PubMed
Abstract

No abstract available in PubMed .

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Attention-Deficit/Hyperactivity Disorder

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.