Cited by 297Obsessive-Compulsive Spectrum DisordersPerfectionism, Procrastination, Anxiety StudiesGambling Behavior and Treatments

Prevalence and heritability of compulsive hoarding: a twin study

Iervolino, Alessandra C., Perroud, Nader, Fullana, Miguel Angel, Guipponi, Michel, Cherkas, Lynn, Collier, David A., Mataix-Cols, David·2009·American Journal of Psychiatry

Abstract

OBJECTIVE: Compulsive hoarding is a serious health problem for the sufferers, their families, and the community at large. It appears to be highly prevalent and to run in families. However, this familiality could be due to genetic or environmental factors. This study examined the prevalence and heritability of compulsive hoarding in a large sample of twins. METHOD: A total of 5,022 twins completed a validated measure of compulsive hoarding. The prevalence of severe hoarding was determined using empirically derived cutoffs. Genetic and environmental influences on compulsive hoarding were estimated using liability threshold models, and maximum-likelihood univariate model-fitting analyses were employed to decompose the variance in the liability to compulsive hoarding into additive genetic and shared and nonshared environmental factors (female twins only; N=4,355). RESULTS: A total of 2.3% of twins met criteria for caseness, with significantly higher rates observed for male (4.1%) than for female (2.1%) twins. Model-fitting analyses in female twins showed that genetic factors accounted for approximately 50% of the variance in compulsive hoarding, with nonshared environmental factors and measurement error accounting for the other half. CONCLUSIONS: Compulsive hoarding is highly prevalent and heritable, at least in women, with nonshared environmental factors also likely to play an important role.

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Crossref · 10.1176/appi.ajp.2009.08121789

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  • Preliminary epidemiological evidence suggests increased hoarding in males, but likely accompanied by even greater lack of insight.

    “Preliminary epidemiological evidence suggests increased hoarding in males (Samuels et al., 2008; Iervolino et al., 2009), but likely accompanied by even greater lack of insight.”

    From The profile of executive function in OCD hoarders and hoarding disorder (2014) · cites this paper as Iervolino et al., 2009

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Authors
Iervolino, A. C., Perroud, N., Fullana, M. A., Guipponi, M., Cherkas, L., Collier, D. A., & Mataix-Cols, D.
Affiliations
King's College London (GB)
Venue
American Journal of Psychiatry
Published
2009-10
Volume
166
Issue
10
Pages
1156-1161
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2095248779
Cited by
297
References
39
Citations by year
2026: 4 · 2025: 6 · 2024: 6 · 2023: 14 · 2022: 16 · 2021: 22 · 2020: 16 · 2019: 18 · 2018: 21 · 2017: 15 · 2016: 10 · 2015: 17 · 2014: 22 · 2013: 60 · 2012: 14
FWCI
17.37
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Wellcome Trust
  • National Institute for Health and Care Research
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Social Sciences › Psychology › Clinical Psychology › Perfectionism, Procrastination, Anxiety Studies
  • Social Sciences › Psychology › Clinical Psychology › Gambling Behavior and Treatments
Keywords
hoarding disorder, prevalence, heritability, twin studies, genetic susceptibility, nonshared environment, shared environment, sex differences, liability threshold model, measurement error
MeSH terms
Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Compulsive Behavior, Diseases in Twins, Female, Humans, Disruptive, Impulse Control, and Conduct Disorders, Male, Middle Aged, Surveys and Questionnaires, Risk Factors, Sex Factors, Twins, Dizygotic, Twins, Monozygotic, Models, Statistical, Prevalence, Genetic Predisposition to Disease

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