Antipsychotic medication for challenging behaviour in people with intellectual disability: a systematic review of randomized controlled trials

A study was performed to determine the effectiveness of antipsychotic medication for people with intellectual disability (ID) and challenging behaviour. Randomized controlled trials comparing antipsychotic medication to placebo in people with ID and challenging behaviour were identified by electronic searching and hand-searching. Reviewers independently evaluated and analysed data on an intention-to-treat basis. Only three randomized controlled trials could be included in the analyses. These trials provided no evidence as to whether antipsychotic medication does or does not help adults with ID and challenging behaviour. There is limited data on this important issue and good quality research is urgently needed.     

Gender dysphoria and cross-dressing in people with intellectual disability: a literature review

In clinical practice, we have come across people with intellectual disability who have gender dysphoria and cross-dress. Here, we review the literature on this subject and present an illustrative case example. We searched databases, followed-up references from relevant articles, and contacted colleagues in the field. We found nine papers with case examples and one survey. Gender identity problems certainly occur in people with intellectual disabilities, and developmental perspectives are important in assessing and treating them. In some cases autistic spectrum disorder was co-morbid, for individuals with and those without intellectual disability. Aggression was also common. Documented treatments were primarily psychological and social and did not include hormones and sex reassignment surgery. Capacity to consent is a factor that determines treatment.     

Effectiveness of antipsychotic medication in people with intellectual disability and schizophrenia: a systematic review

The aim of the present study was to determine the efficacy of any antipsychotic medication for treating people with a dual diagnosis of intellectual disability and schizophrenia. The authors performed an electronic search of Biological Abstracts, the Cochrane Schizophrenia Group's Register of trials, the Cochrane Library, EMBASE, PsycLIT and MEDLINE. Unpublished data were sought from pharmaceutical companies. Both authors independently selected the relevant studies from the reports identified in this way. Only one relevant randomized trial was found by the searches ( Foote 1958 ). This study included four people with a dual diagnosis of schizophrenia and intellectual disability, but results were only available for two subjects. The groups to which the other two people were allocated were unclear. Using the methods described, the reviewers found no trial evidence to guide the use of antipsychotic medication for those with both intellectual disability and schizophrenia. Until the urgent need for randomized controlled trials is met, clinical practice will continue to be guided by evidence from trials involving people with schizophrenia but without intellectual disability.     

A classification of behaviour problems exhibited by people with intellectual disability

Data collected on problem behaviours exhibited by 405 adults and adolescents with intellectual disability using a Behaviour Disorder Scale were analysed to assess relations between problem behaviours. Clients exhibited a number of problem behaviours. Factor analyses showed that the behaviours occurred in syndromes. One factor analysis produced two sets of behaviours which are hypothesised to represent conduct and emotional syndromes. No other checklist of behaviours prepared for use with people with intellectual disability identifies a list of behaviours which represent an emotional syndrome.     

Autonomy in relation to health among people with intellectual disability: a literature review

Background Since the 1990s, individualisation, participation, normalisation and inclusion have been the main principles of care for people with intellectual disability (ID). Autonomy has become an important issue for these people. This review of the literature tried to answer the question: how do people with ID exercise autonomy in relation to health? Method Searches in Cochrane, Medline and PsycINFO were based on the following aspects of autonomy: self‐determination, independence, self‐regulation and self‐realisation. Results Thirty‐nine of 791 articles met our criteria, including 14 on self‐determination, seven on independence, 15 on self‐regulation and three on self‐realisation. Conclusions In spite of decades of promoting autonomy, the exercise of autonomy in relation to health has so far rarely been an issue in the literature.     

The effectiveness of mood stabilizers and antiepileptic medication for the management of behaviour problems in adults with intellectual disability: a systematic review

Background Psychotropic medications are used to manage behaviour problems in adults with intellectual disability (ID). One group of psychotropic medication are mood stabilizers such as lithium and some antiepileptic drugs. Method A comprehensive systematic review was performed to determine the evidence base for the effectiveness of mood stabilizers in the management of behaviour problems among adults with ID. Electronic searches of PsycInfo, Medline, Embase and Cinahl databases were conducted, as well as a thorough hand search for relevant literature. We reviewed primary trials relating to adults only that satisfied strict inclusion criteria. Results One randomized controlled trial (RCT) relating to lithium use and two non‐RCTs, one on lithium and the other on carbamazepine, were revealed. In addition, one prospective non‐controlled trial on sodium valproate and three retrospective case series studies were discovered, of which one considered the efficacy of lithium, one valproate and one topiramate. Conclusions The current evidence lends some support for the use of lithium and some antiepileptic mood stabilizer medication for the management of behaviour problems in adults with ID. However, because most studies reviewed here are riddled with obvious methodological constrains, the findings have to be interpreted with caution.     

Oral health status and reported oral health problems in people with intellectual disability: A literature review

Background: People with intellectual disability (ID) experience poor oral health and are at greater risk of dental decay and periodontal diseases. This impacts on their general health and wellbeing. This review summarises the research literature about oral health status and contributing factors to poor oral health

Method: We conducted a literature review using “intellectual disability” and “oral health” as our two core areas of focus.

Results: People with ID had poorer oral health, greater numbers of tooth extractions, more caries, fewer fillings, greater gingival inflammation, greater rates of endentulism, and had less preventative dentistry and poorer access to services when compared to the general population. Anxiety during dental procedures was a key issue for females with ID.

Conclusions: Further research is needed to identify, pilot and test appropriate and effective interventions that can reduce this preventable health disparity. The design of an ID-specific dental anxiety scale is another priority.     

Providing services in the United Kingdom to people with an intellectual disability who present behaviour which challenges: a review of the literature

There is ongoing debate about the best model of service provision for people with an intellectual disability who present severe behavioural challenges. The present paper reviewed research which evaluated a range of UK service provision in terms of impact on challenging behaviour and other quality of life indices. A literature search was carried out for English language papers from 1990 to 2010 using a range of databases. Secondary searches were carried out from references of relevant papers. Very few evaluations were found. The available research indicates that, on the whole, specialist congregate services for individuals with challenging behaviour appear to use more restrictive approaches which have limited effect on reducing challenging behaviour. The evidence for peripatetic teams is somewhat unclear. The two studies reviewed showed positive outcomes, but both had limitations that made it difficult to generalize the results. A similar limitation was found with the sole evaluation of a community based service. It is unlikely that one model of service provision will meet the needs of all individuals, however, more robust evaluations are required of existing service models to allow commissioners, service users, their families and carers to make fully informed choices about effective services for those who challenge.     

Psychotropic drug use among people with intellectual disability before and after deinstitutionalization

Background The use of psychotropic medication among people with intellectual disability (ID) is widespread, and they are one of the most medicated groups in society. A substantial number of individuals with ID receive psychotropic medications that may be inappropriate for their diagnosis. One of the main reasons for the use of psychotropic medication is challenging behaviours. Almost all prevalence studies show higher prevalence rates of psychotropic medication in institutions compared with community living. Studies on deinstitutionalization and the use of psychotropic medication are few and inconclusive. Method The present study is a prospective cohort study without control group. It examines the use of psychotropic medication among 109 subjects aged between 16 and 65 years before (1987) and after (1995) deinstitutionalization. Psychotropic drug dosages were transformed to percentage of defined daily dosage. Results We found no major changes in the use of neuroleptics after deinstitutionalization neither in frequency nor in dosages, and the trend seemed indiscriminate in relation to diagnosis. The people with schizophrenia or an anxiety disorder did not receive proper drug treatment, nor did they before deinstitutionalization. Conclusions The main predictor variable for neuroleptic dosage both before and after deinstitutionalization was challenging behaviour. The reason for this may be the difficulties in determining the extent to which presenting behaviours are the result of a psychiatric disorder or a behaviour disorder, the lack of knowledge among the caretakers and the ensuing referral practice, the lack of knowledge among the general practitioners, and the lack of access to specialized health services.     

Randomized trial of psychotropic medication information leaflets for people with intellectual disability

People with intellectual disability (ID), like other patient groups, are known to have a limited knowledge of medication. Leaflets are seen as an appropriate means of providing patient information. To test the hypothesis that medication information leaflets would improve the knowledge and care of the target group, the present authors designed a randomized trial and planned to do subgroup analyses where appropriate. The participants were individually randomized to two groups. A control group was given verbal medication information by their nurse or psychiatrist, and a study group was given specifically designed leaflets in addition to verbal information. The present authors recruited 54 people with mild to moderate ID and mental illness, aged 18 years and older, who were taking psychiatric medications. Questionnaires administered by a blind interviewer recorded outcomes such as medication knowledge and satisfaction at two time points. The participants with mild ID in the leaflet group had significantly reduced medication knowledge and understanding. There were no significant differences in satisfaction with clinicians and medication. Patient information leaflets may confuse people with mild ID in the short term. Other patient groups with cognitive deficits may have similar outcomes. Evaluation of outcomes of health education initiatives is important.     

Psychotropic medication in adolescents: a review

All published articles of double-blind, controlled studies of drug treatment of mental disorders in adolescents are reviewed. The evidence for efficacy ranges from suggestive to nonexistent, without any match of drug and disorder showing definitive evidence, either because of the limited number of studies available or because these studies have less than clear findings. Special considerations in the study of adolescent psychopharmacology are addressed, and a practical approach to drug treatment making the best use of the limited information available is offered.     

The effectiveness of antidepressant medication in the management of behaviour problems in adults with intellectual disabilities: a systematic review

Background A comprehensive systematic review was performed to establish the current evidence base regarding the effectiveness of antidepressant medication for the management of behaviour problems in adults with intellectual disabilities. Method An electronic search of PsycInfo, Embase, Medline and Cinahl databases was conducted spanning the time period 1990 to October 2005 for primary trials. This was supplemented by hand searching and cross‐referencing of relevant reviews. Strict scientific methodology requirements were formulated that the studies had to meet in order to merit inclusion in this review. Results One crossover randomized controlled trial in a small cohort, seven prospective uncontrolled trials and two retrospective studies were yielded in the search. Of these, one explored the effectiveness of the tricyclic antidepressant – clomipramine, and nine considered various selective serotonin reuptake inhibitors (SSRIs). Conclusion Evidence based primarily on a small number of either prospective or retrospective case studies that included a small number of participants and often used non‐validated outcome measures for a short period of follow‐up, suggests that antidepressants, particularly SSRIs, show improvement of aggression and self‐injurious behaviour on average in less than 50% of cases and the rest show either no improvement or deterioration. The effect is most pronounced in the presence of an underlying anxiety or an associated diagnosis of obsessive‐compulsive disorder. Most studies have highlighted the concern regarding adverse effects.     

Ageing and mental health problems in people with intellectual disability

PURPOSE OF REVIEW: Increasing numbers of people with intellectual disability are now living well into old age. This paper will review the recent literature pertaining to the mental health of older people with intellectual disability. RECENT FINDINGS: Overall, the prevalence of mental health problems is high in adults of all ages with intellectual disability. A major epidemiological study did not report sufficient detail to examine the effect of ageing on specific disorders or the differential effects of ageing and early mortality in people with Down's syndrome. At least a third of people with Down's syndrome can expect to develop Alzheimer's disease in middle age whilst for other people with intellectual disability, Alzheimer's disease is probably no more common than in the general population. Diagnosis and management of dementia is complicated by the high rates of comorbid physical and mental health problems. SUMMARY: Overall, mental health problems in older people with intellectual disability are similar to younger people with intellectual disability, however there are more cases of dementia and physical health problems. Further research is needed to improve our understanding of the effects of ageing on the mental health and care needs of older people with intellectual disability.     

Psychiatric disorders and behavior problems in people with intellectual disability

The relationship between behavior problems and psychiatric disorders in individuals with intellectual disability is still unresolved. The present study compares the prevalence and pattern of psychiatric disorders in individuals with intellectual disability who were assessed on the ABC to have moderate and severe behavior problems and a matched group of individuals without such problems. Both groups were living in community settings and had their intellectual disability varied from mild to profound degrees. The participants were screened for psychiatric disorders using four different instruments; the Reiss Screen, the Mini PAS-ADD, the DASH-II and the ADD. The group with moderate and severe behavior problems showed significantly more symptoms of psychiatric disorders than the group without such problems when items related to behavior disorders were omitted, and the majority of the participants with behavior problems had symptoms of the main psychiatric disorders. The participants with mild and moderate intellectual disability showed more symptoms of psychosis and depression than the participants with severe and profound intellectual disability. There were no direct associations between individual behavior problems and psychiatric disorders, but the group with mild/moderate intellectual disability showed a somewhat different pattern of associations than the group with severe/profound intellectual disability. Depression was associated with screaming and aggression in the participants with severe and profound intellectual disability, and with self-injury in the participants with mild and moderate intellectual disability. The finding that the majority of the participants with behavior problems showed symptoms of psychiatric disorders suggests that many behavior problems may be (unconventional) symptoms of psychiatric disorders or reflect a difficult life situation caused by a psychiatric disorders, or that a difficult life situation may contribute to both psychiatric disorders and behavior problems in individuals with intellectual disability.     

Prevalence and incidence of health problems in people with intellectual disability

The objective of this study was to determine the prevalence and incidence of the most frequent chronic health problems in relation to age in people with intellectual disabilities living in residential facilities in the Netherlands. A prospective cohort study was done with four data collections, each with an interval of one year. Data were collected by means of questionnaires which were completed by each person's physician. Striking results included the reported high prevalence and incidence of visual and hearing impairment, which was even more pronounced in people with Down's syndrome than in people with intellectual disability resulting from other causes. Gastrointestinal problems also appeared to have high incidence rates. Dementia was frequently reported in people with Down's syndrome aged 40 years and older. The results reflect the need for a more predictive policy which can anticipate health problems in people with intellectual disability.