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PubMed2025

Obsessive-compulsive disorder with hoarding behavior: unravelling key differences.

OBJECTIVE: Hoarding disorder remains underexplored and poorly understood despite its significant impact on individuals and communities. While historically linked to obsessive-compulsive disorder (OCD), emerging evidence suggests they may be distinct conditions. This study aims to investigate these differences. METHODS: Adults aged 18-88 years old (M = 39.86, SD = 14.86) were part of the Genomic Psychiatry Cohort study, including 1247 individuals with OCD without presumed hoarding disorder (OCD-pHD) and 663 individuals with OCD and presumed hoarding disorder (OCD+pHD). Sociodemographic data were collected, and participants were screened for other psychiatric conditions. All met DSM-5 criteria for OCD, with severity assessed using the Florida Obsessive-Compulsive Inventory and Y-BOCS. Statistical significance was set at p ≤ 0.0007, adjusted for multiple comparisons. RESULTS: The OCD+pHD group had significantly lower educational attainment, was more likely to live alone or in supervised living, and less likely to be married. This group also had more severe OCD and poorer insight. All types of obsessions and compulsions were more frequent in the OCD+pHD group, except for obsessions related to harming others. Additionally, the OCD+pHD group had higher rates of major depressive disorder, post-traumatic stress disorder, bipolar disorder, schizophrenia, body dysmorphic disorder, trichotillomania and previous diagnosis and/or symptoms of attention deficit and hyperactivity disorder. No significant difference was found for substance use and Tic/Tourette disorders. CONCLUSIONS: Significant clinical differences were observed between the groups, highlighting the need for further research to improve diagnosis, conceptualization, awareness, and support for individuals with hoarding disorder in the context of OCD.

Humans↗

PubMedDate not supplied

Patients with obsessive-compulsive disorder and hoarding symptoms: a distinctive clinical subtype?

We investigated whether patients with obsessive-compulsive disorder (OCD) and hoarding symptoms can be differentiated from their counterparts with other types of obsessions and compulsions in terms of sociodemographic and clinical features. Ninety-seven patients with OCD were assessed with a sociodemographic and clinical questionnaire, the Structured Clinical Interview for DSM-IV (SCID-I), the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), the Beck Depression Inventory (BDI), the Hamilton Rating Scale for Depression (HDRS), and the Global Assessment of Functioning (GAF). Fifteen patients who reported hoarding symptoms in the Y-BOCS checklist (15.6% of the total sample) were compared and contrasted with 82 patients without those symptoms using the Mann-Whitney U test for continuous variables and the Pearson's goodness-of-fit chi-square test for categorical ones; Fisher's exact test was employed when indicated. Hoarders were characterized by (1) higher educational levels (chi(2) = 7.49; df = 2; P =.02); (2) earlier age at onset (Z = -2.99; P =.003); (3) higher rates of symmetry obsessions (chi(2) = 7.03; df = 1; P =.01); (4) greater frequency of ordering (chi(2) = 10.08; df = 1; P =.004); (5) rituals repetition (chi(2) = 4.42; df = 1; P =.03); (6) counting compulsions (chi(2) = 5.92; df = 1; P =.02); and (7) significantly higher rates of comorbidity with bipolar II disorder (chi(2) = 10.62; df = 1; P =.02) and (8) with eating disorders (chi(2) = 7.42; df = 1; P =.02). In conclusion, patients with OCD exhibiting hoarding feature a distinctive sociodemographic and clinical profile. It remains to be investigated whether these phenotypical characteristics are underlined by specific neurobiological mechanisms.

Adolescent↗

PubMed2004

Comorbidity in compulsive hoarding: a case report.

A 56-year-old male presented with compulsive hoarding along with attention-deficit/hyperactivity disorder and schizotypal personality disorder. Hoarding has been described as difficult to treat both pharmacologically and behaviorally, and this patient's comorbid conditions also contributed to his overall impairment. The patient's treatment regimen of fluvoxamine, amphetamine salts, and risperidone, along with behavioral therapy, has helped with hoarding behaviors, motivation, procrastination, and increased socialization. Hoarding may be a unique subtype of obsessive-compulsive disorder with poorer prognosis and distinct neuroanatomic dysfunction. Augmentation with stimulants may provide benefits in aspects of hoarding such as procrastination, especially in patients with comorbid attention-deficit hyperactivity disorder.

Attention Deficit Disorder with Hyperactivity↗

PubMed2005

Hoarding and its relation to obsessive-compulsive disorder.

Although hoarding is observed in some patients with obsessive-compulsive disorder (OCD), it has not been shown to share a specific relation with OCD. Across two studies, we found that (a) whereas the classic OCD symptoms of checking, rituals, and contamination intercorrelated consistently strongly with one another, hoarding related only moderately to both these OCD symptoms and to depression; (b) OCD patients were distinguished from both other patients and non-patients by classic OCD symptoms, but not by hoarding; and (c) whereas OCD symptoms showed consistent relations with Negative Affect, hoarding largely was uncorrelated with this dimension. These results do not support a specific OCD-hoarding relation but rather call into question the trend of considering it a specific symptom of OCD.

Adolescent↗

PubMed2002

Hoarding in obsessive compulsive disorder: results from a case-control study.

Hoarding occurs relatively frequently in obsessive-compulsive disorder (OCD), and there is evidence that patients with hoarding symptoms have more severe OCD and are less responsive to treatment. In the present study, we investigated hoarding symptoms in 126 subjects with OCD. Nearly 30% of the subjects had hoarding symptoms; hoarding was twice as prevalent in males than females. Compared to the 90 non-hoarding subjects, the 36 hoarding individuals had an earlier age at onset of, and more severe, obsessive-compulsive symptoms. Hoarders had greater prevalences of symmetry obsessions, counting compulsions, and ordering compulsions. Hoarders also had greater prevalences of social phobia, personality disorders, and pathological grooming behaviors (skin picking, nail biting, and trichotillomania). Hoarding and tics were more frequent in first-degree relatives of hoarding than non-hoarding probands. The findings suggest that the treatment of OCD patients with hoarding symptoms may be complicated by more severe OCD and the presence of co-occurring disorders. Hoarding appears to be transmitted in some OCD families and may differentiate a clinical subgroup of OCD.

Adolescent↗

PubMed2005

Hoarding in obsessive-compulsive disorder: clinical and genetic correlates.

OBJECTIVE: Hoarding may be an important symptom dimension in obsessive-compulsive disorder (OCD). Hoarding in OCD has been associated with poor insight, poorer response to selective serotonin reuptake inhibitors than other OCD symptom dimensions, and a distinctive psychobiological profile. The clinical and genetic correlates of hoarding in OCD therefore deserve additional investigation. METHOD: Adult OCD patients (N = 315) underwent a comprehensive clinical assessment that included the Structured Clinical Interview for DSM-IV Axis I Disorders (Patient Edition) and for Diagnosis of Obsessive-Compulsive Spectrum Disorders. DNA extracted from venous blood (10-30 mL) in a Caucasian subset of the interviewed OCD patients (N = 204) and Caucasian controls (N = 169), including patients (N = 94) and controls (N = 138) of Afrikaner descent, was genotyped to investigate polymorphisms in genes involved in monoamine function and previously hypothesized to be relevant to OCD. Data were collected from 1998 through 2004. RESULTS: OCD patients with hoarding made up 18.1% of the total sample. Compared with nonhoarding OCD, OCD with hoarding was associated with a number of comorbid Axis I disorders, obsessive-compulsive personality disorder, significantly higher OCD severity scores, and more functional impairment. In subjects of Afrikaner descent, the L/L genotype of the COMT Val158Met polymorphism was significantly more common in the OCD hoarding group, with a preponderance of low activity alleles, compared with nonhoarding patients and controls. CONCLUSIONS: These data are consistent with the hypothesis that hoarding represents a unique symptom subtype in OCD with a distinctive clinical and psychobiological profile. Further work is needed to determine the psychobiological mechanisms responsible for hoarding and to replicate the genetic findings noted here.

Adult↗

PubMed1999

Hoarding in obsessive-compulsive disorder: a report of 20 cases.

BACKGROUND: We describe the demographic characteristics, hoarding phenomenology, comorbid disorders, family histories, and treatment response of 20 adult obsessive-compulsive disorder (OCD) patients exhibiting hoarding behavior. METHOD: We utilized the Structured Clinical Interview for DSM-III-R, the Yale-Brown Obsessive Compulsive Scale, and a semistructured interview to gather data. RESULTS: We studied 9 women and 11 men. Their hoarding began from age 5 years to age 46 years (mean +/- SD age at onset = 20 +/- 11 years); hoarding was evident before the onset of other OCD symptoms in 9 patients. The most commonly hoarded items were newspapers and magazines, junk mail, old clothes, notes or lists, and old receipts. Hoarded material occupied from one room plus most or all closets to more than one room plus all closets, the garage, and yard. Seven patients rented additional storage space for hoarded items. Eighty-four percent of patients reported a family history of hoarding, and 80% grew up in a household where someone else hoarded. The most frequent primary motives for hoarding were fears of discarding something useful and discarding something that would be needed in the future. Lifetime prevalence of major depression and of impulse-control disorders, especially compulsive shopping, were high; only 3 patients met DSM-IV criteria for obsessive-compulsive personality disorder. Response of hoarding to selective serotonin reuptake inhibitors was less robust than is expected for obsessive-compulsive disorder. CONCLUSION: Whether hoarding behaviors mark a subset of obsessive-compulsive disorder patients with a different pathophysiology or functional anatomy deserves investigation.

Adolescent↗

PubMed2006

Hoarding in obsessive-compulsive disorder: results from the OCD Collaborative Genetics Study.

Hoarding behavior occurs frequently in obsessive-compulsive disorder (OCD). Results from previous studies suggest that individuals with OCD who have hoarding symptoms are clinically different than non-hoarders and may represent a distinct clinical group. In the present study, we compared 235 hoarding to 389 non-hoarding participants, all of whom had OCD, collected in the course of the OCD Collaborative Genetics Study. We found that, compared to non-hoarding individuals, hoarders were more likely to have symmetry obsessions and repeating, counting, and ordering compulsions; poorer insight; more severe illness; difficulty initiating or completing tasks; and indecision. Hoarders had a greater prevalence of social phobia and generalized anxiety disorder. Hoarders also had a greater prevalence of obsessive-compulsive and dependent personality disorders. Five personality traits were independently associated with hoarding: miserliness, preoccupation with details, difficulty making decisions, odd behavior or appearance, and magical thinking. Hoarding and indecision were more prevalent in the relatives of hoarding than of non-hoarding probands. Hoarding in relatives was associated with indecision in probands, independently of proband hoarding status. The findings suggest that hoarding behavior may help differentiate a distinct clinical subgroup of people with OCD and may aggregate in some OCD families. Indecision may be a risk factor for hoarding in these families.

Adolescent↗

PubMed2002

Hoarding in obsessive-compulsive disorder and related disorders: a preliminary report of 15 cases.

Hoarding, the repetitive collection of excessive quantities of poorly useable items of little or no value with failure to discard these items over time, is characterized in DSM-IV as a symptom of obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD) but has, until recently, received scant empirical investigation. We describe the demographics, phenomenology, associated psychopathology and family history in 15 subjects presenting with hoarding behavior. Fifteen subjects were recruited from an OCD clinic and newspaper advertisement and assessed with the comprehensive Structured Clinical Interview for DSM-IV (SCID I and II), the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), and a hoarding questionnaire (devised by the authors). The sample comprised 11 women and four men who hoarded a mean of seven item types, with a mean duration of 13.2 +/- 3.9 years (range 2-15 years). Their mean age was 41.8 +/- 14.3 years (range 20-65 years). The most common motive for hoarding was the fear of discarding items of practical value. Nine subjects met DSM-IV criteria for OCD, 9 met criteria for OCPD, for symptoms and behaviors other than hoarding, while six subjects met criteria for a putative OCD spectrum disorder (Tourette's, body dysmorphic disorder, trichotillomania). Six subjects reported little or no control over their hoarding, but only one subject saw her symptoms as an 'illness' warranting treatment. Pathological hoarding is usually a covert and chronic behavior causing distress and/or impairment, and may be related to OCD and OCPD. Hoarding may meet the criterion for a compulsion in DSM-IV, yet there is evidence to suggest that hoarding may manifest in a variety of other psychiatric conditions. While a range of pharmacologic and behavioral treatments have been tried, their effectiveness in managing hoarding behaviors requires additional research.

Adult↗

PubMed2005

The distinctiveness of compulsive hoarding from obsessive-compulsive disorder.

The present study investigated the relation of compulsive hoarding to other obsessive-compulsive disorder (OCD) symptoms in a sample of 162 patients with OCD. Obsessions and compulsions reported on the Anxiety Disorders Interview Schedule for DSM-IV were submitted to an exploratory factor analysis. Results suggested a four-factor model: "Certainty," "Contamination," "Obsessions," and "Numbers/Ordering." Hoarding did not load on any factor. The sample was divided into three groups: pure hoarding, nonhoarding OCD, and mixed OCD and hoarding. The hoarding group endorsed significantly less anxiety, worry, stress, and negative affect on self-report measures than the mixed and nonhoarding groups. Although hoarding sometimes functions as a compulsion among individuals with OCD, hoarding in the absence of other OCD symptoms may be a clinically distinct syndrome.

Adolescent↗

PubMed1999

Hoarding: a review.

BACKGROUND: Hoarding is currently categorized as a symptom of both obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder. However, hoarding has also been documented in association with other psychiatric disorders, raising questions about the classification, psychobiology and treatment of these symptoms. This paper reviews the literature on hoarding. METHOD: A computerized literature search was done using the MEDLINE database. Relevant references were collated and were used to obtain additional literature on hoarding behavior. RESULTS: Although hoarding may meet DSM-IV diagnostic criteria for a compulsion, this symptom is also seen in a range of other disorders. Nevertheless, the phenomenology of hoarding remains under-researched. In addition, the psychobiology and treatment of hoarding remains relatively poorly understood, although in certain aspects there may be some overlap with the symptoms of OCD. CONCLUSIONS: Further research on the phenomenology, psychobiology and treatment of hoarding is clearly needed. A neuro-ethological view of hoarding as a spectrum symptom seen not only in OCD, but also in other disorders, may provide a useful heuristic for current clinical practice and for future empirical research.

Adolescent↗

PubMed2006

The hoarding dimension of OCD: psychological comorbidity and the five-factor personality model.

Although hoarding has been associated with several psychological disorders, it is most frequently linked to obsessive-compulsive disorder (OCD). The present study assessed hoarding obsessions and compulsions in 204 individuals with OCD, and evaluated how hoarding was related to obsessive-compulsive symptom severity, psychological comorbidity, and personality as measured by the five-factor model. Results indicated that hoarding in OCD is a dimensional variable that is positively associated with dysphoria, total number of lifetime Axis I disorders, and lifetime histories of bipolar I, PTSD, and body dysmorphic disorder. Hoarding was negatively correlated with the NEO-Personality Inventory-Revised (NEO-PI-R) factor of Conscientiousness and positively associated with the NEO-PI-R factor of Neuroticism. When all personality and psychopathology variables were entered into a regression equation, dysphoria, bipolar II disorder, Conscientiousness, age, and Extraversion emerged as significant predictors of hoarding severity. Recommendations are made for clinicians and for future research.

Adolescent↗

PubMedDate not supplied

[Differential diagnosis of hoarding behaviors].

Hoarding of objects comprises a continuum from normality to extreme disease. It is important to distinguish between the different disorders that include hoarding behaviors. Compulsive hoarding is a form of obsessive-compulsive disorder (OCD) that is characterized by excessive acquisition of possessions, inability to discard possessions, and excessive clutter. Patients usually display other obsessive features, feel distress if they cannot hoard objects, show a typical cognitive pattern with obsessive features, and their interpersonal relations are mediated by objects. Diogenes syndrome is the combination of severe self-neglect, domestic squalor, social withdrawal, hoarding, and refusal of help, in elderly patients. There is high comorbidity with psychiatric/somatic disorders. Depression and dementia are risk factors for self-neglect. Collectionism is a normal phenomenon that is common in children but also found in adults. It is usually an organized activity, and the objects are kept in specific and structured places. The aim of collecting is to organize and hierarchize a series of objects, not just to hoard them. Collected objects are frequently appreciated by other collectors, and become exchanged to enlarge the collection.

Diagnosis, Differential↗

PubMed2004

Distinct neural correlates of washing, checking, and hoarding symptom dimensions in obsessive-compulsive disorder.

CONTEXT: Obsessive-compulsive disorder (OCD) is clinically heterogeneous, yet most previous functional neuroimaging studies grouped together patients with mixed symptoms, thus potentially reducing the power and obscuring the findings of such studies. OBJECTIVE: To investigate the neural correlates of washing, checking, and hoarding symptom dimensions in OCD. DESIGN: Symptom provocation paradigm, functional magnetic resonance imaging, block design, and nonparametric brain mapping analyses. SETTING: University hospital. PARTICIPANTS: Sixteen patients with OCD (11 inpatients, 5 outpatients) with mixed symptoms and 17 healthy volunteers of both sexes. Intervention All subjects participated in 4 functional magnetic resonance imaging experiments. They were scanned while viewing alternating blocks of emotional (washing-related, checking-related, hoarding-related, or aversive, symptom-unrelated) and neutral pictures, and imagining scenarios related to the content of each picture type.Main Outcome Measure Blood oxygenation level-dependent response. RESULTS: Both patients and control subjects experienced increased subjective anxiety during symptom provocation (patients significantly more so) and activated neural regions previously linked to OCD. Analyses of covariance, controlling for depression, showed a distinct pattern of activation associated with each symptom dimension. Patients demonstrated significantly greater activation than controls in bilateral ventromedial prefrontal regions and right caudate nucleus (washing); putamen/globus pallidus, thalamus, and dorsal cortical areas (checking); left precentral gyrus and right orbitofrontal cortex (hoarding); and left occipitotemporal regions (aversive, symptom-unrelated). These results were further supported by correlation analyses within patients, which showed highly specific positive associations between subjective anxiety, questionnaire scores, and neural response in each experiment. There were no consistently significant differences between patients with (n = 9) and without (n = 7) comorbid diagnoses. CONCLUSIONS: The findings suggest that different obsessive-compulsive symptom dimensions are mediated by relatively distinct components of frontostriatothalamic circuits implicated in cognitive and emotion processing. Obsessive-compulsive disorder may be best conceptualized as a spectrum of multiple, potentially overlapping syndromes rather than a unitary nosologic entity.

Adult↗

PubMed2005

Relationships among compulsive hoarding, trauma, and attention-deficit/hyperactivity disorder.

The current study investigated aspects of post-traumatic stress disorder and attention deficit/ hyperactivity disorder (ADHD) among hoarders. Compared to a sample of 36 controls, hoarders (n=26) reported a significantly greater number of different types of trauma, more frequent traumatic experiences, more symptoms of inattention, hyperactivity, and greater comfort derived from possessions. These findings are consistent with previous reports of extensive comorbidity associated with hoarding behaviors, and may reflect the potential usefulness of assessing PTSD and ADHD symptoms at the outset of hoarding treatments, as well as considering alternative pharmacological interventions.

Analysis of Variance↗

PubMed2000

Mood, personality disorder symptoms and disability in obsessive compulsive hoarders: a comparison with clinical and nonclinical controls.

Hoarding is a symptom of obsessive compulsive disorder (OCD), as well as a diagnostic criterion for obsessive compulsive personality disorder (OCPD). One recent study suggests that people who suffer from compulsive hoarding report more general psychopathology than people who do not [Frost, R.O., Krause, M.S., & Steketee, G. (1996). Hoarding and obsessive compulsive symptoms. Behavior Modification, 20, 116-132]. The present study addressed whether persons with OCD hoarding exhibit more depression, anxiety, OCD and personality disorders symptoms than community controls, OCD nonhoarders, or other anxiety disorder patients. Disability was also examined. Hoarding subjects were older than the other three groups, but age did not account for any of the differences observed among the groups. Compared to controls, OCD hoarding, nonhoarding OCD and anxiety disorder patients showed elevated YBOCS scores, as well as higher scores on depression, anxiety, family and social disability. Compared to nonhoarding OCD and anxiety disorder patients, OCD hoarding patients scored higher on anxiety, depression, family and social disability. Hoarding subjects had greater personality disorder symptoms than controls. However, OCD hoarding subjects differed from OCD nonhoarding and anxiety disorder subjects only on dependent and schizotypal personality disorder symptoms. The findings suggest that hoarding is associated with significant comorbidity and impairment compared to nonhoarding OCD and other anxiety disorders.

Adult↗

PubMed1999

Diogenes syndrome and hoarding in the elderly: case reports.

Presented here are two case reports of elderly persons with Diogenes syndrome (variously known as senile breakdown, social breakdown and senile squalor syndrome). Diogenes syndrome is often (but not always) characterized by a tendency to hoard excessively (syllogomania). The first patient was diagnosed as having both a schizotypal personality disorder and obessive-compulsive disorders (OCD) while the second was diagnosed as having a schizoid personality disorder. Only the former demonstrated the tendency to hoard rubbish. The Diogenes syndrome in both cases can be hypothesized to be a reaction to stress in elderly people with certain personality characteristics or as the end stage of a personality disorder. The hoarding behavior that was manifested only in the first case can probably be the result of the presence of an OCD. The authors raise the possibility that OCD may be the cause of hoarding rubbish in those cases of Diogenes syndrome in which hoarding exists and cannot be explained by psychotic disorders, dementia or any other mental disorders due to a general medical condition (GMC) or substance-related disorders.

Aged↗

PubMed1997

Hoarding symptoms in patients on a geriatric psychiatry inpatient unit.

BACKGROUND: While collecting may be a normal behaviour, hoarding is a symptom of various psychiatric disorders, including obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD). Although anecdotal reports suggest that hoarding is not uncommon in geriatric psychiatry populations, its psychopathological correlates in such samples have not been well characterised. METHODS: The presence of clinically significant hoarding symptoms was screened for in 100 consecutive patients in a geriatric psychiatry inpatient unit. Both patient and collateral histories were obtained. When hoarding symptoms were present, a detailed history of their phenomenology was obtained by means of a structured questionnaire and the response of hoarding symptoms to treatment during hospitalisation was monitored. RESULTS: Clinically significant hoarding was found in 5/100 subjects. Four of these 5 patients met DSM-IV criteria for schizophrenia (paranoid subtype), with onset of symptoms coinciding with increased symptoms of dementia. The fifth patient met criteria for bipolar disorder (manic episode), also had symptoms of dementia, and had a lifelong history of hoarding. Hoarding behaviours responded to antipsychotic treatment in 3 of the 5 patients. CONCLUSIONS: A history of hoarding may be useful in many psychiatric patients, but psychopathological correlates of this symptom are likely to vary with age. In a geriatric psychiatry inpatient population hoarding was associated not with OCD or OCPD, but rather with paranoid schizophrenia and increasing symptoms of dementia. Dopamine blockers appeared useful in decreasing hoarding in some patients, raising interesting questions about the neurobiology of this symptom.

Aged↗