Occurrence of Medical Concerns in Psychiatric Outpatients with Intellectual Disabilities

ABSTRACT

Despite the fact that adults with both intellectual disabilities (ID) and psychiatric disorders are at increased risk for physical health problems, few studies have described their medical concerns specifically. This study reports on the rates of physical health issues and completion of recommended health screenings among 78 adult outpatients with ID in a specialized psychiatric service. We conducted a retrospective chart review of physical health information gathered by the psychiatric nurse using a standardized head-to-toe assessment tool and compared findings from nursing assessments to health information collected at intake based on patient and caregiver perspectives. Psychiatric outpatients with ID had at least one physical health issue and most had multiple concerns flagged through nursing assessments, the majority of which were not documented at intake. Our findings highlight the important role of the psychiatric nurse in management of patients with ID and indicate the need for more comprehensive health monitoring.     

Psychiatric disorders in adolescents and young adults with Down syndrome and other intellectual disabilities

Background

Relative to other aspects of Down syndrome, remarkably little is known about the psychiatric problems experienced by youth and young adults with this syndrome and if these problems differ from others with intellectual disabilities. Yet adolescence and young adulthood are particularly vulnerable time periods, as they involve multiple life transitions in educational, medical, and other service systems.

Methods

This study compared the psychiatric diagnoses of 49 adolescent and young adult patients with Down syndrome to 70 patients with other intellectual disabilities (IDs). The groups were similar in age, gender, and level of intellectual impairment. The 119 participants, aged 13 to 29 years (M = 21) were evaluated in one of two specialized psychiatric clinics.

Results

In contrast to previous literature, those with Down syndrome versus other IDs had significantly higher rates of psychosis NOS or depression with psychotic features (43% versus 13%). Unlike the ID group, psychosis was predominantly seen in females with Down syndrome. Marked motoric slowing in performing routine daily activities or in expressive language was manifested in 17% of patients with Down syndrome. No group differences were found in anxiety or depressive disorders, and the ID group had significantly higher rates of bipolar and impulse control disorders.

Conclusions

These preliminary observations warrant further studies on genetic, neurological, and psychosocial factors that place some young people with Down syndrome or other IDs at high risk for severe psychiatric illness.     

The Mood Disorders Association of British Columbia Psychiatric Urgent Care Program: A Preliminary Evaluation of a Suggested Alternative Model of Outpatient Psychiatric Care

Objective:

To describe an alternative model of psychiatric outpatient care for patients with mood and anxiety disorders (the Mood Disorders Association of British Columbia Psychiatric Urgent Care Program or the MDA Program) using group medical visits (GMV) and (or) email communications in lieu of individual follow-up appointments.

Method:

Annual costs of the MDA Program were compared with average costs of private psychiatrists offering outpatient care and patients being treated in a mental health centre. In addition, questionnaires as to patient satisfaction with the MDA Program intake, GMV experience, and family physician satisfaction with the MDA Program were administered.

Results:

The MDA Program model of care is significantly more cost effective than individual psychiatric outpatient care or health authority mental health centre care for patients with moderate or severe illness. Patients and family physicians were very satisfied with the model of care and GMVs offered.

Conclusions:

The MDA Program model of care appears to be efficient and cost-effective, and patients and referring physicians appear satisfied with the care offered in this program.     

Subjective Cognitive Complaints and Functional Disability in Patients With Borderline Personality Disorder and Their Nonaffected First-Degree Relatives

Objective:

To examine the contributions of subjective cognitive complaints to functional disability in patients with borderline personality disorder (BPD) and their nonaffected relatives.

Method:

Patients with BPD (n = 26), their first-degree biological relatives (n = 17), and nonpsychiatric control subjects (n = 31) completed a self-report measure of cognitive difficulties and rated the severity of their functional disability on the World Health Organization Disability Assessment Schedule 2.0.

Results:

After accounting for group differences in age and severity of depressive symptoms, patients and relatives endorsed more inattention and memory problems than control subjects. Whereas probands reported greater disability than relatives and control subjects across all functional domains, relatives described more difficulties than control subjects in managing multiple life activities, including domestic activities and occupational and academic functioning, and participating in society. For both probands and relatives, inattention and memory problems were linked primarily to difficulties with life activities, independent of depression and other comorbid psychiatric disorders.

Conclusions:

Problems with inattention and forgetfulness may lead to difficulties carrying out activities of daily living and occupational or academic problems in patients with BPD, as well as their nonaffected first-degree relatives.     

Using Avoidable Admissions to Measure Quality of Care for Cardiometabolic and Other Physical Comorbidities of Psychiatric Disorders: A Population-Based,Record-Linkage Analysis

Objective:

Quality of care for comorbid physical disorders in psychiatric patients can be assessed by the number of avoidable admissions for ambulatory care sensitive (ACS) conditions. These are admissions for physical conditions that, with appropriate primary care, should not require inpatient treatment. Avoidable admissions for ACS conditions feature prominently in Australia’s National Health Performance Framework and have been used to assess health care provision for marginalized groups, such as Indigenous patients or those of lower socioeconomic status. They have not been applied to people with mental illness.

Methods:

A population-based, record-linkage analysis was used to measure ACS admissions for physical disorder in psychiatric patients of state-based facilities in Queensland, Australia, during 5 years.

Results:

There were 77 435 males (48.0%) and 83 783 females (52%) (total n = 161 218). Among these, 13 219 psychiatric patients (8.2%) had at least 1 ACS admission, the most common being for diabetes (n = 6086) and angina (n = 2620). Age-standardized rates were double those of the general population. Within the psychiatric group, and after adjusting for confounders, those who had ever been psychiatric inpatients experienced the highest rates of ACS admissions, especially for diabetes.

Conclusions:

In common with other marginalized groups, psychiatric patients have increased ACS admissions. Therefore, this measure could be used as an indicator of difficulties in access to appropriate primary care in Canada, given the availability of similar administrative data.     

Do Patients Really Prefer Individual Outpatient Follow-Up Visits,Compared With Group Medical Visits?

Objective:

Access to outpatient psychiatric care remains problematic in Canada. We have been using group medical visits (GMV) to treat psychiatric outpatients with mood and anxiety disorders. Our study aimed to show that patients are similarly satisfied with GMV and individual psychiatric treatment, hence the concern that patients truly prefer individual treatment may be unfounded.

Method:

Our study compared patient satisfaction in people who have had previous individual psychiatric care and are now receiving GMV to determine whether there is a treatment preference.

Results:

Questionnaire data were analyzed using repeated measures ANOVA. The ANOVAs showed no differences in patients’ experiences with individual treatment, compared with GMV. In addition, we found when asked directly, most patients preferred GMV or had no treatment preference.

Conclusions:

These findings indicate that patients’ perspectives of individual psychiatric treatment and GMV are roughly equal. This suggests that the method of GMV deserves further study and comparison with other clinical models of psychiatric outpatient treatment.     

Urgent Psychiatric Services: A Scoping Review

Objective:

Urgent psychiatric services can provide timely access to ambulatory psychiatric assessment and short-term treatment for patients experiencing a mental health crisis or risk of rapid deterioration requiring hospitalization, yet little is known about how best to organize mental health service delivery for this population. Our scoping review was conducted to identify knowledge gaps and inform program development and quality improvement.

Method:

We searched MEDLINE, PsycINFO, CINAHL, Embase, and EBM Reviews for English-language articles, published from January 1993 to June 2014, using relevant key words and subject headings. Reverse and forward citations were manually searched using reference lists and Google Scholar. Articles were included if they described programs providing ambulatory psychiatric assessment (with or without treatment) within 2 weeks of referral.

Results:

We identified 10 programs providing urgent psychiatric services. Programs targeted a diagnostically heterogeneous population with acute risks and intensive needs. Most programs included a structured process for triage, strategies to improve accessibility and attendance, interprofessional staffing, short-term treatment, and efforts to improve continuity of care. Despite substantial methodological limitations, studies reported improvements in symptom severity, distress, psychosocial functioning, mental health–related quality of life, subjective well-being, and satisfaction with care, as well as decreased wait times for post-emergency department (ED) ambulatory care, and averted ED visits and admissions.

Conclusions:

Urgent psychiatric services may be an important part of the continuum of mental health services. Further work is needed to clarify the role of urgent psychiatric services, develop standards or best practices, and evaluate outcomes using rigorous methodologies.     

Annotation: New research into general psychiatric services for adults with intellectual disability and mental illness

Background   There are a variety of models for the mental health care of adults with comorbid intellectual disability (ID) and mental illness. There has been a long-running debate as to whether this should be provided by general psychiatric or specialised ID services. A previous review concluded that there was no clear evidence to support either model with research being often of a poor quality, lacking replication, and outcome measures were often inappropriate or varied between studies. This review aims assess differences in outcome for patients with ID and mental disorders treated in general or specialised ID mental health services.
Method   A literature review was conducted using electronic databases and websites of ID and mental health organisations to locate all references where people with ID receive mental health care in general psychiatric services from 2003. No meta-analysis was attempted because of the divergent nature of the studies.
Results   People with ID (especially severe ID) have reduced access to general psychiatric services. General psychiatric inpatient care is unpopular especially with carers but can be improved by providing specially trained staff and in-reach from community ID teams. Opportunities may exist to enhance the care of people with borderline intellectual functioning within general psychiatric services.
Conclusions   Although no new randomised controlled trials have been published, the weight of research is accumulating to suggest that provision of general psychiatric services without extra help is not sufficient to meet the needs of people with ID.     

Psychopathology and cognitive performance in individuals with membrane-associated guanylate kinase mutations: a functional network phenotyping study

Background

Rare pathogenic variants in membrane-associated guanylate kinase (MAGUK) genes cause intellectual disability (ID) and have recently been associated with neuropsychiatric risk in the non-ID population. However, it is not known whether risk for psychiatric symptoms amongst individuals with ID due to MAGUK gene mutations is higher than expected for the degree of general intellectual impairment, nor whether specific cognitive differences are associated with disruption to this gene functional network.

Methods

This study addresses these two questions via behavioural questionnaires and cognitive testing, applying quantitative methods previously validated in populations with ID. We compared males with X-linked ID caused by mutations in three MAGUK genes (PAK3, DLG3, OPHN1; n = 9) to males with ID caused by mutations in other X chromosome genes (n = 17). Non-parametric and parametric analyses were applied as appropriate to data.

Results

Groups did not differ in age, global cognitive impairment, adaptive function or epilepsy prevalence. However, individuals with MAGUK gene mutations demonstrated significantly higher psychopathology risks, comprising elevated total problem behaviours, prominent hyperactivity and elevated scores on an autism screening checklist. Despite these overt difficulties, individuals in the MAGUK group performed more accurately than expected for age and intelligence quotient (IQ) on computerised tests of visual attention, convergent with mouse models of MAGUK loss-of-function.

Conclusions

Our findings support a role for MAGUK genes in influencing cognitive parameters relevant to psychiatric risk. In addition to establishing clear patterns of impairment for this group, our findings highlight the importance of careful phenotyping after genetic diagnosis, showing that gene functional network disruptions can be associated with specific psychopathological risks and cognitive differences within the context of ID.

Electronic supplementary material

The online version of this article (doi:10.1186/s11689-015-9105-x) contains supplementary material, which is available to authorized users.     

Psychiatric disorder prevalence among deaf and hard-of-hearing outpatients

Objectives

To contribute to the dearth of literature on the prevalence rates of psychiatric disorders in deaf adults, this study examined the diagnostic and clinical characteristics of deaf psychiatric outpatients in comparison to hearing psychiatric outpatients.

Methods

Archival clinical data for deaf adults (N=241), treated at a specialized, linguistically and culturally affirmative outpatient community mental health program from 2002 to 2010, was compared to data from a random sample of hearing adult outpatients (N=345) who were treated at the same community mental health center.

Results

In various diagnostic categories, significant differences were seen between the deaf and hearing groups: bipolar disorders (3.7% versus 14.2%), impulse control disorders (15.8% versus 5.2%), anxiety disorders (18.7% versus 30.1%), attention deficit hyperactivity disorder (11.2% versus 4.9%), pervasive developmental disorders (3.3% versus 0.3%), substance use disorders (27.8% versus 48.4%), and intellectual disabilities (10.4% versus 2.9%).

Conclusions

The deaf outpatient group evidenced a different diagnostic profile than the hearing sample. It is suggested that the use of culturally competent and fluent ASL-signing clinicians provides more diagnostic clarity and is encouraged as a best practice for the care of deaf individuals.     

Psychiatric disorders in inpatients on a neurology ward: estimate of prevalence and usefulness of screening questionnaires

Background

Patients on neurology wards have been shown to have high rates of psychiatric illness. Prevalence figures of 39–64% have been reported previously. However a low rate of recognition of psychiatric illness is also observed in this population.

Objectives

To estimate the prevalence of psychiatric illness in neurology inpatients in a regional neuroscience centre and to assess the sensitivity and specificity of a batch of screening questionnaires.

Method

Patients were assessed using the following screening questionnaires: Primary Care Evaluation of Mental Disorders, Mini Mental State Examination, Frontal Assessment Battery, Alcohol Use Disorders Identification Test and a neurologist‐rating scale of organicity. All patients also had a full psychiatric assessment using the Diagnostic and statistical manual of mental disorders, 4th edition (DSM‐IV). The screening questionnaires were then compared with our “gold standard”, the psychiatric assessment.

Results

The prevalence of psychiatric illness (as determined by the psychiatric interview) in neurology inpatients in a tertiary referral centre was found to be 51.3% (95% confidence interval 44 to 58%). The sensitivity of this batch of screening questionnaires is 81.2% and the specificity is 77.1%.

Conclusion

A high prevalence of psychiatric disorder was observed in inpatients on a dedicated neurology ward. The screening questionnaires used had a high sensitivity and specificity and could therefore be used as a simple way of identifying those with psychiatric illness.High levels of psychiatric illness have been reported in general neurology inpatients and outpatients. Fink et al¹ found a prevalence of 55.1% for current mental disorder in new neurological patients. Carson et al² reported a prevalence of 47% for anxiety and depressive disorders in patients referred to general neurology outpatient clinics. Bridges and Goldberg³ showed the prevalence of psychiatric illness in neurology inpatients to be 39%. Carson et al⁴ reported that 30% of patients referred to a neurologist had symptoms not explained by organic disease. A comparison of neurology outpatients with and without emotional disorders has shown that physical function, physical role function, bodily pain and social functioning are worse in those with emotional disorders.²It has also been shown that psychiatric illnesses are commonly missed in neurological patients. Bridges and Goldberg³ showed that 72% of psychiatric illness was unrecognised by neurologists, and Fink et al¹ found that only 1.5% of the patients with a mental illness were referred to a psychiatrist.Carson et al² found that only 11% of neurology patients with an emotional disorder expressed any perceived need for psychiatric input, whereas Bridges and Goldberg³ reported that 58% of neurology patients with a psychiatric illness, and 50% of those without, wished that an enquiry into their mood had been made.To date, no study has investigated the prevalence rates of mental illness in neurology inpatients admitted to a regional neurosciences centre. It cannot be assumed that the rates would be the same as those reported for neurology outpatients.The aims of this study were to:

• Estimate the prevalence of psychiatric disorder in neurology inpatients in a regional neuroscience centre
• Identify any high‐risk groups
• Assess the effectiveness of a batch of screening questionnaires in the identification of mental illness.

     

A Surveillance System to Monitor Excess Mortality of People With Mental Illness in Canada

Objective:

Outcome measures are rarely available for surveillance and system performance monitoring for mental disorders and addictions. Our study aims to demonstrate the feasibility and face validity of routinely measuring the mortality gap in the Canadian context at the provincial and regional levels using the methods and data available to the Canadian Chronic Disease Surveillance System (CCDSS) of the Public Health Agency of Canada.

Methods:

We used longitudinal data from the Quebec Integrated Chronic Disease Surveillance System, which also provides aggregated data to the CCDSS. This includes data from the health insurance registry physician claims and the hospital discharge abstract for all mental disorder diagnoses (International Classification of Diseases [ICD]-9 290–319 or ICD-10 F00–F99). Patients were defined as having had received a mental disorder diagnosis at least once during the year. Life expectancy was measured using Chiang’s method for abridged life tables, complemented by the Hsieh method for adjustment of the last age interval.

Results:

We found a lower life expectancy among psychiatric patients of 8 years for men and 5 years for women. For patients with schizophrenia, life expectancy was lowered by 12 years for men and 8 years for women. Cardiovascular disease and cancer were the most common causes of premature death. Findings were consistent across time and regions of the province. Lower estimates of the mortality gap, compared with literature, could be explained by the inclusion of primary care patients and methods.

Conclusions:

Our study demonstrates the feasibility of using administrative data to measure the impact of current and future mental health plans in Canada provided the techniques can be replicated in other Canadian provinces.     

Is The Effect of Compulsory Community Treatment on Preventable Deaths From Physical Disorders Mediated by Better Access to Specialized Medical Procedures?

Objectives

Compulsory community treatment has been shown to reduce preventable deaths from physical disorders—these causes being up to 10 times more common than suicide in psychiatric patients. We investigated whether this was mediated by better access to specialized medical procedures.

Method:

All patients on compulsory community treatment for over 11 years were compared with matched control subjects using linked administrative health data from Western Australia (state population of about 2.24 million). Outcomes were access to revascularization and other specialized procedures at 1-, 2-, and 3-year follow-up. Logistic regression was used to adjust for demographics, prior health service use, diagnosis, and length of psychiatric history.

Results:

There were 2757 patients and 2687 control subjects (total n = 5444). Sixty-five per cent were males (n = 3522), and the average age was 36 years (SD 13.2). Most had schizophrenia or other nonaffective psychoses (74%), followed by affective disorders (26%). At 2-year follow-up, 2% (n = 53) of patients and 2.6% (n = 69) of control subjects had undergone a specialized intervention. Compulsory community treatment did not result in greater access to specialized procedures at all 3 time points even after adjusting for potential confounders.

Conclusions:

Greater access to specialized procedures does not explain the reduced mortality from preventable physical illness that had been reported in patients on community treatment orders. There must be other explanations for this finding, such as mental health staff facilitating access to chronic disease management in primary care. This warrants further research.     

Service Use and Unmet Needs in Youth Suicide: A Study of Trajectories

Objective:

While 90% of suicide victims have suffered from mental health disorders, less than one-half are in contact with a mental health professional in the year preceding their death. Service use in the last year of life of young suicide victims and control subjects was studied in Quebec. We wanted to determine what kinds of health care services were needed and if they were actually received by suicide victims.

Method:

We recruited 67 consecutive suicide victims and 56 matched living control subjects (aged 25 years and younger). We evaluated subjects’ psychopathological profile and determined which services would have been indicated by conducting a needs assessment. We then compared this with what services were actually received.

Results:

Suicide victims were more likely than living control subjects to have a psychiatric diagnosis. They were most in need of services to address substance use disorder, depression, interpersonal distress, and suicide-related problems. There were significant deficits in the domains of coordination and continuity of care, mental health promotion and training, and governance.

Conclusions:

Our results show that we need to urgently take action to address these identified deficits to prevent further loss of life in our young people.     

Predictors of Frequent Recourse to Health Professionals by People With Severe Mental Disorders

Objective:

Based on Andersen’s behavioural model, our study sought to determine predictors and blocks of factors that could explain why people with severe mental disorders (SMDs) more often seek the services of health professionals.

Methods:

This longitudinal study involved 292 users with SMDs located in Le Sud-Ouest, the southwest borough of Montreal. Data were collected from participants’ medical records and through 7 questionnaires. Using Andersen’s Behavioral Model of Health Services Use, independent variables were divided into 3 classes—predisposing factors, enabling factors, and need factors—and were introduced in this order in a hierarchical logistic model.

Results:

Among 292 users, 110 (37.7%) were frequent users who consulted about one health professional every 3 days. Participants who were more likely to call on health professionals were single and older, depended on welfare as their main source of income, lived in supervised housing, suffered from schizophrenia, schizophrenia spectrum disorders, and adjustment disorders, and, marginally, exhibited multiple mental disorders.

Conclusion:

Mental health services could promote strategies to overcome the reluctance of younger people to seek professional services. Professionals should pay close attention to subsidiary conditions, such as adjustment disorders, from which people with SMDs may suffer. Interventions to improve the socioeconomic condition of unemployed people with SMDs may help to reduce health care service use among that clientele. Programs such as supported employment should be tailored and enhanced for people receiving welfare to decrease stigmatization and improve job market integration.     

The National Trajectory Project of Individuals Found Not Criminally Responsible on Account of Mental Disorder. Part 5: How Essential Are Gender-Specific Forensic Psychiatric Services?

Objective:

To state the sociodemographic characteristics, mental health histories, index offence characteristics, and criminal histories of male and female forensic psychiatric patients. Clinicians and researchers advocate that mental health and criminal justice organizations implement gender-specific services; however, few studies have sampled forensic patients to evaluate the extent to which men’s and women’s treatment and management needs are different.

Method:

Data were collected from Review Board files from May 2000 to April 2005 in the 3 largest Canadian provinces. Using official criminal records, participants were followed for 3 to 8 years, until December 2008. The final sample comprised 1800 individuals: 15.6% were women and 84.4% were men.

Results:

There were few demographic differences, but women had higher psychosocial functioning than men. Both men and women had extensive mental health histories; women were more likely diagnosed with mood disorders and PDs and men were more likely diagnosed with schizophrenia spectrum disorders and SUDs. The nature of the index offence did not differ by gender, except women were more likely to have perpetrated murders and attempted murders. For offences against a person, women were more likely to offend against offspring and partners and less likely to offend against strangers, compared with men. Women had significantly less extensive criminal histories than men.

Conclusions:

Not criminally responsible on account of mental disorder–accused women have a distinct psychosocial, clinical, and criminological profile from their male counterparts, which may suggest gender-specific assessment, risk management, and treatment in forensic services could benefit patients. The findings are also consistent with traditional models (Risk-Need-Responsivity) and ultimately demonstrate the importance of individual assessment and client-centred services.     

Osteoprotegerin levels in patients with severe mental disorders

Background

Severe mental disorders are associated with elevated levels of inflammatory markers. In the present study, we investigated whether osteoprotegerin (OPG), a member of the tumour necrosis factor receptor family involved in calcification and inflammation, is elevated in patients with severe mental disorders.

Methods

We measured the plasma levels of OPG in patients with severe mental disorders (n = 312; 125 with bipolar disorder and 187 with schizophrenia) and healthy volunteers (n = 239).

Results

The mean plasma levels of OPG were significantly higher in patients than in controls (t₅₃₁ = 2.6, p = 0.01), with the same pattern in bipolar disorder and schizophrenia. The increase was significant after adjustment for possible confounding variables, including age, sex, ethnic background, alcohol consumption, liver and kidney function, diabetes, cardiovascular disease, autoimmune diseases and levels of cholesterol, glucose and C-reactive protein.

Limitations

Owing to the cross-sectional design, it is difficult to determine causality.

Conclusion

Our results indicate that elevated OPG levels are associated with severe mental disorders and suggest that mechanisms related to calcification and inflammation may play a role in disease development.     

Incentives and Disincentives for the Treatment of Depression and Anxiety: A Scoping Review

Objective:

There is widespread support for primary care to help address growing mental health care demands. Incentives and disincentives are widely used in the design of health care systems to help steer toward desired goals. The absence of a conceptual model to help understand the range of factors that influence the provision of primary mental health care inspired a scoping review of the literature. Understanding the incentives that promote and the disincentives that deter treatment for depression and anxiety in the primary care context will help to achieve goals of greater access to mental health care.

Method:

A review of the literature was conducted to answer the question, how are incentives and disincentives conceptualized in studies investigating the treatment of common mental disorders in primary care? A comprehensive search of MEDLINE, PsycINFO, CINAHL, and Google Scholar was undertaken using Arksey and O’Malley’s 5-stage methodological framework for scoping reviews.

Results:

We identified 27 studies. A range of incentives and disincentives influence the success of primary mental health care initiatives to treat depression and anxiety. Six types of incentives and disincentives can encourage or discourage treatment of depression and anxiety in primary care: attitudes and beliefs, training and core competencies, leadership, organizational, financial, and systemic.

Conclusions:

Understanding that there are 6 different types of incentives that influence treatment for anxiety and depression in primary care may help service planners who are trying to promote improved mental health care.     

Utility of the Brief Symptom Inventory (BSI) in psychiatric outpatients with intellectual disabilities

Background Diagnostics and care for people with intellectual disabilities (ID) and psychiatric disorders need to be improved. This can be done by using assessment instruments to routinely measure the nature and severity of psychiatric symptoms. Up until now, in the Netherlands, assessment measures are seldom used in the psychiatric care for this population. The objective of the present paper is to evaluate the use of the Brief Symptom Inventory (BSI), a widely used standardised questionnaire in general psychiatry, in a well‐defined sample of people with borderline intellectual functioning or mild ID diagnosed with one or more psychiatric disorders. Methods A total of 224 psychiatric outpatients with either borderline intellectual functioning or mild ID participated in this study. All participants were new patients of Kristal, Centre for Psychiatry and Intellectual Disability in the Netherlands, in the period between 1 April 2008 and 1 October 2009. All participants were assessed by a multidisciplinary team, including a certified psychiatrist. Diagnostic and Statistical Manual of Mental Disorders (DSM‐IV‐TR) criteria were applied. The mean total intelligence quotient was measured with the Wechsler Adult Intelligence Scale (WAIS‐III). The BSI was administered in an assisted fashion. Utility and psychometric properties of the BSI were investigated. Internal consistency coefficients (Cronbach's alphas) were computed. Bivariate correlations between the sub‐scales were computed to assess differentiation between the scales. Mean sub‐scale scores were compared between different DSM‐IV‐TR subgroups to investigate the discriminant abilities of the scales. A confirmatory factor analysis was conducted. Results The results suggest that the BSI is practically useful. Internal consistencies ranged from 0.70 to 0.96 and thus are considered good to adequate. Sub‐scale inter‐correlations showed there is a degree of differentiation between the sub‐scales. Discriminant validity was shown for the sub‐scales depression, anxiety and phobic anxiety. Confirmatory factor analysis showed that the underlying structure of the BSI could be described by the same nine‐factor model as reported in previous studies. Conclusions As a result of the psychometric properties illustrated, this study supports the use of the BSI as a screener for psychopathology and a general outcome measure in people with ID.