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Related Experiment Videos

Phenotypic differences in early- and late-onset obsessive-compulsive disorder.

C Sobin1, M L Blundell, M Karayiorgou

  • 1Laboratory of Human Neurogenetics, The Rockefeller University, New York, NY 10021, USA.

Comprehensive Psychiatry
|September 30, 2000
PubMed
Summary

Early-onset obsessive-compulsive disorder (OCD) presents distinct characteristics compared to later-onset OCD. Understanding these differences is crucial for targeted research and treatment strategies in pediatric and adult populations.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Genetics

Background:

  • Genetic anomalies are often linked to early-onset diseases.
  • Onset age may serve as a potential marker for obsessive-compulsive disorder (OCD) phenotypes.
  • Previous research suggests variations in clinical presentation based on age of onset.

Purpose of the Study:

  • To compare phenotypic characteristics between early- and late-onset obsessive-compulsive disorder (OCD).
  • To assess the potential of onset age as a marker for distinct OCD subtypes.
  • To investigate differences in symptom presentation, course, and associated conditions.

Main Methods:

  • Study included 38 children with DSM-IV OCD and 129 adults (77 early-onset, 52 late-onset).
  • DSM-IV diagnoses were confirmed using an amended Diagnostic Interview for Genetic Studies (DIGS).

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  • Phenotypic characteristics were compared between early- and late-onset adult OCD patients.

    • Main Results:

    • Children with OCD showed earlier onset of non-impairing symptoms and diagnosis, higher rates of learning disabilities, and fewer obsessions/compulsions than adults with childhood onset.
    • Early-onset OCD in adults was characterized by non-impairing symptom onset before puberty, a more aggressive course, and more obsessions/compulsions.
    • Late-onset OCD in adults featured non-impairing symptom onset during puberty, a static course, and fewer, variably related obsessions/compulsions.

    Conclusions:

    • Children with OCD and adults with childhood-onset OCD exhibit distinct clinical characteristics and should be studied separately.
    • Early- and late-onset OCD forms possess unique phenotypic features with potential neurobiological and genetic implications.
    • Onset age is a significant factor differentiating OCD presentations and warrants further investigation.