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Related Experiment Video

Updated: Feb 3, 2026

Assessing Burrowing, Nest Construction, and Hoarding in Mice

Assessing Burrowing, Nest Construction, and Hoarding in Mice

Published on: January 5, 2012

Identifying hoarding disorder in the elderly using the interRAI.

Yoram Barak¹, Sharon Leitch², Philippa Greco³

¹Otago University Medical School, Department of Psychological Medicine, Dunedin, New Zealand.

Archives of Gerontology and Geriatrics

|November 5, 2018

Summary

This summary is machine-generated.

Hoarding disorder (HD) affects older adults. The international Residential Assessment Instrument - Home Care (interRAI-HC) identified suspected HD in 3.5% of older adults in New Zealand, aligning with global rates.

Keywords:

Hoarding Squalor interRAI

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Last Updated: Feb 3, 2026

Assessing Burrowing, Nest Construction, and Hoarding in Mice

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Published on: March 11, 2022

Area of Science:

Gerontology
Psychiatry
Public Health

Background:

Hoarding disorder (HD) is a significant concern in older populations, contributing to increased morbidity and mortality.
Accurate prevalence data is crucial for developing targeted interventions and support services for elderly individuals with HD.

Purpose of the Study:

To estimate the prevalence of hoarding disorder among older adults using the international Residential Assessment Instrument - Home Care (interRAI-HC).
To assess the utility of the interRAI-HC as a potential screening tool for hoarding disorder in the elderly population.

Main Methods:

A retrospective analysis of 6655 individuals aged 50 and older assessed using the interRAI-HC in New Zealand between January 2015 and December 2017.
Analysis focused on interRAI-HC items related to socially inappropriate or disruptive behavior and squalor to identify suspected cases of HD.
Demographic data including age and gender were analyzed in relation to suspected HD cases.

Main Results:

The study identified suspected hoarding disorder in 3.5% (n=233) of the assessed older adults.
An additional 1.5% (n=98) exhibited squalid living conditions.
Individuals with suspected HD were significantly younger and had a higher proportion of males compared to the general study group.

Conclusions:

The prevalence rates of hoarding disorder estimated using the interRAI-HC are comparable to international findings.
While the interRAI-HC shows potential, its use as a definitive screening tool for HD requires further validation due to the complexity of identification.