Prevalence and types of aggressive behaviour among adults with intellectual disabilities

Crocker, Anne G.; Mercier, Céline; Lachapelle, Yves; Brunet, Alain; Morin, Diane; Roy, M-E

doi:10.1111/j.1365-2788.2006.00815.x

Cited by 225 publications

(251 citation statements)

References 32 publications

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“…There have been a number of studies of aggressive challenging behaviour in relation to IQ but these are inconsistent: they include reports of an increase, 119,128,129 no change [130][131][132] or a decrease 120 in aggression as the degree of intellectual impairment increases. (We did not observe any relationship between challenging behaviour and IQ, perhaps because the IQ range was narrower than in previous studies, which, unlike the present study, also included people with severe and profound disabilities.)…”

Section: Intellectual Abilitymentioning

confidence: 99%

A cluster randomised controlled trial of a manualised cognitive behavioural anger management intervention delivered by supervised lay therapists to people with intellectual disabilities

Willner

Rose²,

Jahoda³

et al. 2013

Health Technol Assess

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This report should be referenced as follows:Willner P, Rose J, Jahoda A, Stenfert Kroese B, Felce D, MacMahon P, et al. A cluster randomised controlled trial of a manualised cognitive-behavioural anger management intervention delivered by supervised lay therapists to people with intellectual disabilities. Health Technol Assess 2013;17(21). This journal is a member of and subscribes to the principles of the Committee on Publication Ethics (COPE) (www.publicationethics.org/). Health Technology Assessment is indexed and abstracted inEditorial contact: nihredit@southampton.ac.ukThe full HTA archive is freely available to view online at www.journalslibrary.nihr.ac.uk/hta. Print-on-demand copies can be purchased from the report pages of the NIHR Journals Library website: www.journalslibrary.nihr.ac.uk Criteria for inclusion in the Health Technology Assessment journalReports are published in Health Technology Assessment (HTA) if (1) they have resulted from work for the HTA programme, and (2) they are of a sufficiently high scientific quality as assessed by the reviewers and editors.Reviews in Health Technology Assessment are termed 'systematic' when the account of the search appraisal and synthesis methods (to minimise biases and random errors) would, in theory, permit the replication of the review by others. HTA programmeThe HTA programme, part of the National Institute for Health Research (NIHR), was set up in 1993. It produces high-quality research information on the effectiveness, costs and broader impact of health technologies for those who use, manage and provide care in the NHS. 'Health technologies' are broadly defined as all interventions used to promote health, prevent and treat disease, and improve rehabilitation and long-term care.The journal is indexed in NHS Evidence via its abstracts included in MEDLINE and its Technology Assessment Reports inform National Institute for Health and Care Excellence (NICE) guidance. HTA research is also an important source of evidence for National Screening Committee (NSC) policy decisions.For more information about the HTA programme please visit the website: www.hta.ac.uk/ This reportThe research reported in this issue of the journal was funded by the HTA programme as project number 08/53/34. The contractual start date was in May 2009. The draft report began editorial review in May 2012 and was accepted for publication in August 2012. The authors have been wholly responsible for all data collection, analysis and interpretation, and for writing up their work. The HTA editors and publisher have tried to ensure the accuracy of the authors' report and would like to thank the reviewers for their constructive comments on the draft document. However, they do not accept liability for damages or losses arising from material published in this report.This report presents independent research funded by the National Institute for Health Research (NIHR). The views and opinions expressed by authors in this publication are those of the authors and do not necessarily reflect those of the ...

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Section: Intellectual Abilitymentioning

confidence: 99%

A cluster randomised controlled trial of a manualised cognitive behavioural anger management intervention delivered by supervised lay therapists to people with intellectual disabilities

Willner

Rose²,

Jahoda³

et al. 2013

Health Technol Assess

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“…A study of Crocker et al 32 , evaluated prevalence and seriousness of five types of aggressive behaviour in 3.165 adult men and women with mental retardation, who received assistance in three rehabilitation centres in Quebec-Canada. The annual prevalence of aggressive behaviour found was 51.8%: 24% committed damage to property, 37.6% verbal aggression, 24.4% self-mutilation, 24.4% physical aggression and 9.8% showed aggressive sexual behaviour.…”

Section: Sexual Crimes and Mental Retardationmentioning

confidence: 99%

Relationship between sexual offences and mental and developmental disorders: a review

Valença¹,

Nascimento²,

Nardi³

2013

Rev. psiquiatr. clín.

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Background: Sexual violence is a serious public health problem that concerns and faces our society. The prevalence, magnitude and consequences of this problem have merited growing attention by health researchers and human rights scholars. Objective: To conduct a review of the literature regarding the relationship between mental disorders, sexual offences and those of development. Methods: A bibliographic research was performed in PubMed, Scientific Electronic Library Online (SciELO) and Lilacs, employing the terms "sexual crime", "sexual offence", "mental disorder", "mental retardation", "developmental disability" and its combinations. Results: The mental disorders and developmental disorders more frequently related to the perpetration of sexual offences were schizophrenia, bipolar disorder and mental retardation. Discussion: The detection and treatment of psychiatric morbidity among sexual offenders in health and criminal justice systems, which may contribute to a lower risk of recidivism of this sexual behaviour, is important.

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“…3,8,36,38,61,64,65 Moreover, the presence of a comorbid personality disorder -especially antisocial, but also dependent personality disorder -increases the risk of violence in patients with mental retardation, as it does for patients with schizophrenia. 37,[66][67][68][69] Similarly, comorbid substance abuse increases the risk of violence in patients with mental retardation. 70 Furthermore, violent mentally retarded adults have been shown to have larger brain ventricles than their non-violent counterparts, as well as a higher frequency of abnormal EEGs, yet no increased prevalence of seizure disorders (as for schizophrenia).…”

Section: Introductionmentioning

confidence: 99%

“…4,22,38 Furthermore, mood symptoms, especially irritability, and self-harm have been linked to an increased risk of violence. 2,10,25,27,30,44,50,65,66,[74][75][76] Regardless of diagnosis, violence in psychiatric patients has remained associated with long-stay hospital admissions. 77 But even more importantly, the most consistent finding concerning the prediction of violence in the psychiatric context has been that past violence predicts future violence.…”

Section: Introductionmentioning

confidence: 99%

Risk factors for violence among long-term psychiatric in-patients: a comparison between violent and non-violent patients

Krüger

Rosema²

2011

Afr. J. Psych

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Objective: The problem of the prediction of violence in psychiatric patients has led to a proliferation of research over the last decade. This study focuses on enduring patient related risk factors of violence, and investigates which long-term patients in Weskoppies Hospital (a specialist psychiatric hospital) are the most likely to commit violent acts. Method: Nursing statistics on violent incidents and other security breaches were collected for 262 long-term in-patients over a six month period (AprilSeptember 2007). The 41 patients who committed violent acts were compared to the 221 non-violent patients in terms of demographic and clinical variables, using two-way tables and Chi-Square or Fisher's Exact Tests. Results: The prevalence of violence among the long-term patients was 16%. Fighting among patients was the most common form of violence (58%). The most significant risk factors of violence among the long-term patients are: A diagnosis of mental retardation; first hospital admission before the age of 40 years; total hospital stay >12 years; current accommodation in a closed ward; habitual verbal aggression; absence of disorganised behaviour; and being clinically evaluated as unsuitable for community placement. Conclusion: The findings will help to identify those long-term patients most at risk of violence. The subgroup of patients with mental retardation is responsible for a disproportionately large number of violent acts in the hospital. The risk lies not so much in their psychiatric symptoms, but more in their cognitive ability, coping skills and inappropriate admission circumstances. Efforts should be directed -at a provincial level -towards their community placement.

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Prevalence and types of aggressive behaviour among adults with intellectual disabilities

Cited by 225 publications

References 32 publications

A cluster randomised controlled trial of a manualised cognitive behavioural anger management intervention delivered by supervised lay therapists to people with intellectual disabilities

A cluster randomised controlled trial of a manualised cognitive behavioural anger management intervention delivered by supervised lay therapists to people with intellectual disabilities

Relationship between sexual offences and mental and developmental disorders: a review

Risk factors for violence among long-term psychiatric in-patients: a comparison between violent and non-violent patients

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