Compulsive hoarders: how do they differ from individuals with obsessive compulsive disorder?

Area of Science:

• Psychiatry
• Clinical Psychology
• Behavioral Science

Background:

• Hoarding was previously classified as a subtype of obsessive-compulsive disorder (OCD).
• Diagnostic revisions propose hoarding as a distinct diagnosis within obsessive-compulsive related disorders.
• Limited direct comparisons exist between hoarding and other OCD presentations.

Purpose of the Study:

• To compare individuals with OCD without hoarding, hoarding without OCD, and those with both conditions.
• To examine differences in obsessionality, compulsivity, overvalued ideas, depression, and anxiety.
• To assess hoarding symptoms and savings cognitions in hoarding groups.

Main Methods:

• Comparative study involving three groups: OCD only (n=102), hoarding only (n=21), and comorbid OCD and hoarding (n=25).
• Assessment of obsessionality, compulsivity, overvalued ideas, depression, and anxiety.
• Evaluation of specific hoarding symptoms and cognitive factors related to saving.

Main Results:

• The hoarding-only group reported fewer obsessions, compulsions, and lower depression than both OCD groups.
• Both hoarding groups exhibited significantly higher levels of overvalued ideas compared to the OCD-only group.
• Hoarding groups experienced less subjective distress but greater difficulty challenging dysfunctional cognitions.

Conclusions:

• Compulsive hoarding appears clinically distinct from OCD, even when comorbid.
• Individuals with hoarding disorder, with or without OCD, may face challenges with cognitive-behavioral interventions due to cognitive rigidity.
• Findings support the proposed reclassification of hoarding as a separate disorder.