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Obsessive-compulsive disorder (OCD) is a mental health condition characterized by recurrent obsessions, compulsions, or both, which consume significant time and interfere with daily functioning. Obsessions involve persistent, intrusive, and unwanted thoughts, images, or urges that evoke anxiety. Common examples include irrational fears of contamination or harm. Compulsions are repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions. For instance, individuals...
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Signal Attenuation as a Rat Model of Obsessive Compulsive Disorder
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Subthreshold symptoms and obsessive-compulsive disorder: evaluating the diagnostic threshold.

C de Bruijn1, S Beun, R de Graaf

  • 1Sint Franciscus Gasthuis, GGZ Delfland, 3045 PM Rotterdam, The Netherlands. Carla.debruijn@gmail.com

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|September 8, 2009
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Summary

Individuals with subthreshold obsessive-compulsive symptoms experience significant distress and functional impairment, similar to those with full obsessive-compulsive disorder (OCD). These cases warrant attention for future diagnostic criteria.

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Area of Science:

  • Psychiatry
  • Mental Health Research
  • Clinical Psychology

Background:

  • Obsessive-compulsive disorder (OCD) diagnosis requires specific symptom thresholds.
  • Subthreshold cases, exhibiting symptoms below full diagnostic criteria, are common in the general population.
  • Understanding the impact of subthreshold symptoms is crucial for comprehensive mental health care.

Purpose of the Study:

  • To compare the functional status and co-morbidity of individuals with subthreshold obsessive-compulsive symptoms to those with full OCD and controls.
  • To assess the clinical significance of subthreshold obsessive-compulsive symptoms in a large population sample.

Main Methods:

  • Utilized data from the Netherlands Mental Health Survey and Incidence Study (NEMESIS), a representative sample (n=7076).
  • Employed the Composite International Diagnostic Interview (CIDI 1.1) to categorize participants into three groups: no lifetime obsessions/compulsions, subthreshold symptoms, and full OCD (DSM-III-R criteria).
  • Compared groups on psychological vulnerability, health and functional status, psychiatric co-morbidity, and treatment seeking.

Main Results:

  • Subthreshold and full OCD groups reported similar levels of psychological vulnerability, health status, functional impairment, and psychiatric co-morbidity.
  • Both subthreshold and full OCD groups exhibited significantly worse outcomes compared to individuals without obsessions or compulsions.
  • A substantial proportion of individuals with obsessions and/or compulsions did not meet full OCD diagnostic criteria.

Conclusions:

  • Obsessive and compulsive symptoms, even when subthreshold, are associated with considerable suffering and disability.
  • Subthreshold cases demonstrate clinical consequences comparable to diagnosed OCD, highlighting their significance.
  • Recommended special attention for subthreshold cases in the development of future diagnostic manuals like DSM-V.