Mental Retardation in Teenagers: Prevalence Data from the Niagara Region, Ontario

Bradley, Elspeth; Thompson, Ann; Bryson, Susan E.

doi:10.1177/070674370204700707

Cited by 31 publications

(44 citation statements)

References 6 publications

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“…11 Nonverbal intelligence was assessed using the Merrill-Palmer Scale of Mental Abilities (excluding the verbal items) or the Performance Scale of the Wechsler Intelligence Scales 12-14 depending on the participants' age and level of functioning. Adaptive functioning was measured using the Vineland Adaptive Behaviour Scales Interview.…”

Section: Participantsmentioning

confidence: 99%

“…15 The methods employed for this larger study and prevalence estimates for intellectual disabilities (IQ < 75) are provided elsewhere. 11 Caregivers of all participants were interviewed using the ADI-R. 16 Consensus classification of complex cases, involving clinicians experienced in the assessment of autism, contributed to the identification of autism. Further methodological details and prevalence estimate for this population are reported separately.…”

Section: Participantsmentioning

confidence: 99%

“…Further methodological details and prevalence estimate for this population are reported separately. 17 In the population-based sample of adolescents with intellectual disabilities 11 (n = 171), 41 met ADI-R criteria for autism and had a nonverbal IQ of less than 75. Each adolescent was pairwise matched on age, sex, and nonverbal IQ to a participant without autism.…”

Section: Participantsmentioning

confidence: 99%

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Psychiatric Conditions and Behavioural Problems in Adolescents with Intellectual Disabilities: Correlates with Autism

2011

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Objective: To determine whether psychiatric and behavioural disorders occur more frequently in adolescents with autism and intellectual disabilities, compared with those without autism. Method:A population-based case-control study was undertaken and 36 adolescents with autism were pairwise matched for age and IQ to 36 adolescents without autism. Caregivers were interviewed with structured psychiatric interview and questionnaire measures of psychiatric and behavioural problems. Results:Compulsive behaviours and stereotypies were significantly more common in adolescents with autism. Conclusions:Adolescents with autism are prone to compulsive behaviours and stereotypies as well as specific manifestations of anxiety, fears, and phobias.Can J Psychiatry. 2011;56(2):102-109. Clinical Implications• Adolescents with autism are at an increased risk of compulsive behaviours and stereotypies.• Anxiety during clinical assessment was elevated in adolescents with autism, and the phenomenon of anticipatory anxiety warrants further research.• There is a need for the development of assessment measures of obsessivecompulsive disorder (OCD) in a population in which it can be challenging to elicit mental state. Limitations• The moderate size of our study does not provide the power to fully examine the relations between autism, problem behaviours, and medication prescription.• Participants had intellectual disabilities as well as autism; further study of adolescents with autism with IQ in the normal range is warranted.• Diagnosis of OCD could not be made, given the diagnostic requirement for an ego dystonic interpretation and the difficulties eliciting a full description of mental state in the population with intellectual disabilities.

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Section: Participantsmentioning

confidence: 99%

Section: Participantsmentioning

confidence: 99%

Section: Participantsmentioning

confidence: 99%

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Psychiatric Conditions and Behavioural Problems in Adolescents with Intellectual Disabilities: Correlates with Autism

2011

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“…However, despite a higher ratio of males to females among milder cases of ID, the ratio decreases as IQ decreases (McLaren & Bryson, 1987;American Psychiatric Association, 2000). Some studies suggest that severe ID may be more prevalent among females (Katusic et al, 1996;Bradley et al, 2002), however these studies were performed in quite specific geographic locations and populations, and may not necessarily be generalizable to other regions. Some of this gender bias can be accounted for by mutations on the X-chromosome.…”

Section: Intellectual Disabilitiesmentioning

confidence: 99%

Common Genetic Etiologies and Biological Pathways Shared Between Autism Spectrum Disorders and Intellectual Disabilities

Kaufman¹,

Noor²,

Ayub³

et al. 2011

Autism Spectrum Disorders: The Role of Genetics in Diagnosis and Treatment

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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“…Problématique et objectifs de l'étude D'après les études sur la prévalence, la déficience intellectuelle affecterait entre 1 et 3% de la population (Bradley, Thompson, & Bryson, 2002;Luckasson et al, 2003;Lussier & Flessas, 2005;Murphy, Boyle, Schendel, Decouflé, & Yeargin-AUsop, 1998;Roeleveld, Zielhuis, & Gabreëls, 1997;Tassé & Morin, 2003). Avoir un enfant avec une déficience intellectuelle prédispose les parents à vivre du stress .…”

Section: Introduction Généraleunclassified

Analyse comparative du point de vue des mères, des pères et des enseignants dans l'évaluation des problèmes de comportement d'enfants d'âge scolaire ayant une déficience intellectuelle /

Harvey¹

2012

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SommairePlusieurs études rapportent que le taux de prévalence des problèmes de comportement est plus élevé chez les enfants ayant une déficience intellectuelle que chez ceux au développement typique. Les cliniciens et les chercheurs insistent sur l'importance d'évaluer les problèmes de comportement des enfants à l'aide de plusieurs informateurs.Les parents ainsi que les enseignants sont reconnus comme les personnes les plus appropriées pour évaluer les problèmes de comportement chez les enfants d'âge scolaire.Une recension des écrits sur l'évaluation des problèmes de comportement par les parents et les enseignants a permis de relever des failles méthodologiques importantes, notamment le fait que les études ne considèrent pas souvent le point de vue du père ou mettent les mères et les pères dans le même groupe pour les comparer aux enseignants. Introduction générale

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Mental Retardation in Teenagers: Prevalence Data from the Niagara Region, Ontario

Abstract: Our prevalence estimate for SMR is similar to rates from previous studies conducted worldwide. Our estimate for MMR parallels the lower rates found in Scandinavian countries and contrasts with the higher rates generally reported in the US.

Cited by 31 publications

References 6 publications

Psychiatric Conditions and Behavioural Problems in Adolescents with Intellectual Disabilities: Correlates with Autism

Psychiatric Conditions and Behavioural Problems in Adolescents with Intellectual Disabilities: Correlates with Autism

Common Genetic Etiologies and Biological Pathways Shared Between Autism Spectrum Disorders and Intellectual Disabilities

Analyse comparative du point de vue des mères, des pères et des enseignants dans l'évaluation des problèmes de comportement d'enfants d'âge scolaire ayant une déficience intellectuelle /

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