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Related Experiment Videos

Attention deficit hyperactivity disorder: comorbidity and medication use.

David A Kube1, Mario C Petersen, Frederick B Palmer

  • 1Boling Center for Developmental Disabilities, Department of Pediatrics, University of Tennessee Health Science Center, 711 Jefferson Avenue, Memphis, TN 38105, USA.

Clinical Pediatrics
|October 9, 2002
PubMed
Summary

Many children referred for ADHD evaluation have other conditions, leading to misdiagnosis and inappropriate stimulant use. Age and referral concerns significantly impact diagnosis, with younger children more likely to have language or behavioral disorders, while older children are more prone to ADHD or learning disabilities.

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Area of Science:

  • Child and Adolescent Psychiatry
  • Neurodevelopmental Disorders
  • Pediatric Psychology

Background:

  • Children evaluated for Attention Deficit Hyperactivity Disorder (ADHD) may present with overlapping symptoms of other neurodevelopmental and behavioral disorders.
  • This diagnostic complexity can lead to misdiagnosis and inappropriate prescription of stimulant medications.

Purpose of the Study:

  • To investigate the relationships between referral complaints (ADHD, behavior, or learning problems) and demographic factors (age, gender), final diagnoses, and medication use in children evaluated for ADHD.
  • To differentiate ADHD from other conditions presenting with similar symptoms in a pediatric population.

Main Methods:

  • An interdisciplinary team evaluated 189 children aged 2 to 15 years referred for ADHD, behavior, or learning problems.

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  • Diagnoses included ADHD, Specific Learning Disability (SLD), Mental Retardation (MR), Developmental Language Disorders (LANG), and Other Behavior Disorders (DIS).
  • Pre- and post-evaluation medication use was reviewed.

    • Main Results:

    • 43% of subjects received a final ADHD diagnosis; 40% referred for ADHD did not have it.
    • Children over 5 years were more likely to be diagnosed with ADHD (p < 0.0001), while those 5 years or younger were more likely diagnosed with LANG (p < 0.0001).
    • Younger children (≤5 years) with behavior problems or learning issues had higher rates of MR (35%) and DIS (49%). Older children (>5 years) were more likely diagnosed with SLD (41%).
    • 10% of children without confirmed ADHD were using stimulants, and only 48% of those with ADHD were on stimulants.

    Conclusions:

    • Referral complaints and age are critical factors in diagnosing pediatric neurodevelopmental disorders.
    • Children presenting with behavior or learning problems, especially those younger than 5, are at higher risk for MR, LANG, and DIS, and less likely to have ADHD.
    • Diagnostic accuracy is crucial to prevent inappropriate stimulant medication use, as multiple diagnoses are common and stimulant use is prevalent even in non-ADHD cases.