Prevalence of mental illness, intellectual disability, and developmental disability among homeless people in Nagoya, Japan: A case series study

Using the learning disability screening questionnaire to help identify people with an intellectual disability in homeless services

BACKGROUND

We explored the accuracy of using the learning disability screening questionnaire (LDSQ) in services for people experiencing homelessness in the United Kingdom.

METHOD

We examined the concordance between the LDSQ outcomes and assessments of intellectual disability. Seventy adults experiencing homelessness completed the LDSQ. Staff completed the LDSQ and a measure of adaptive functioning for 38 of this group. Nine participants received an intellectual assessment.

RESULTS

Sensitivity and specificity for the LDSQ when completed by staff was 83% and 96% respectively and 50% and 92% when completed by the individual. Seven people had intellectual and adaptive functioning in the intellectual disability range.

CONCLUSION

The results suggest that the LDSQ would be an appropriate and beneficial screening tool to use within services for people experiencing homelessness. More accurate results would be likely if it were completed by staff.

The autistic experience of homelessness: Implications from a narrative enquiry

LAY ABSTRACT

Recent research suggests many autistic people experience homelessness. However, little is known about the types of homelessness autistic people experience and what barriers autistic people face when trying to exit homelessness. This study involved gathering life stories of autistic people who had experienced homelessness. Ten autistic participants talked about their pathways through homelessness and the difficulties they had in accessing support. After first becoming homeless, participants tended to experience rough sleeping and sofa surfing. When participants approached housing and homelessness services, they were often told they were not eligible for support. This could happen when support workers were not aware of autism, or when autism was not considered 'severe' enough. Overcrowding, confrontation and lack of control over routine and environment were particular issues for participants when they entered homelessness hostels. Some participants chose to sleep on the streets rather than stay in environments which increased social anxiety and sensory difficulties. This study discusses ways in which homelessness and housing services can increase accessibility and improve engagement for autistic people. It is important to increase awareness of autism while understanding that autistic people who experience homelessness may have complex needs. In addition, services need to listen to autistic people with lived experience of homelessness to decide what changes will have the most impact.

Psychological ailments and their treatment protocols: a case study of Swati traditional healers in Mpumalanga Province, South Africa

BACKGROUND

Evidence suggests that South African traditional healers (THs) treat various mental complaints. However, there is little literature on Swati THs' accounts on this subject. The current study therefore, sought to address this gap.

METHODS

Data was gathered using qualitative research methods, namely semi-structured interviews with 10 purposely sampled Swati THs practicing in the Kanyamazane peri-urban township (Mpumalanga Province, South Africa). Data was thematically analysed.

RESULTS

Results showed that THs treat seven psychological aliments, viz. adjustment disorders, depression, mental illness due to ancestral calling, mental illness due to bewitchment, mental illness due to breaking of taboos, psychotic disturbance and substance induced mental illness. Generally, an integrated treatment protocol was utilised by THs to treat and manage these disorders. Most of these procedures are acceptable from either folkloric or scientific viewpoint, and have demonstrated certain level of efficacy in treating mental illness.

CONCLUSION

Taken together, the evidence presented indicates that Swati THs use different traditional methods to manage various mental complaints. In doing so, they carry a large share of the community caseload for mental health, whilst admitting patients in their homes for extended periods of time, and also referring some (patients) for additional care within the Western health sector.

"Staying at home" to tackle COVID-19 pandemic: rhetoric or reality? Cross-cutting analysis of nine population groups vulnerable to homelessness in Japan

Although the "stay-at-home" order is advocated against the coronavirus disease 2019 (COVID-19), the lives of individuals lacking adequate housing are threatened. We developed a framework to assess various populations with unstable housing in terms of socio-economic consequences of COVID-19, risk of COVID-19 infection and progression, existing/urgent measures, and remaining challenges. Within the framework, nine groups vulnerable to homelessness in Japan were classified into (i) "people without accommodation," (ii) "people living in temporary or crisis accommodation," and (iii) populations that include "people living in severely inadequate and insecure accommodation." The assessment revealed that "staying at home" was physically and practically unattainable across groups. The study identified specific institutional, social, and cultural challenges apart from the common economic crisis, whereas the utilization of social welfare was low. Findings suggest that the rapid increase of groups classified as "(i)" and "(ii)" should be addressed by engaging stakeholders to enhance the availability and accessibility of social welfare and rescue measures, and to ensure safe and private accommodations for all groups. It is critical to enhance multi-sectoral collaboration in responding to the common and specific vulnerabilities of these population groups from health, socio-economic, and humanitarian perspectives. Under the pandemic, homelessness should be regarded less as a peculiar problem for specific populations but an extension of daily life. The framework can be a reference when planning the comprehensive yet concise assessment of populations with unstable housing in other countries to inform responses to the pandemic.

Homelessness and people with intellectual disabilities: A systematic review of the international research evidence

BACKGROUND

People with intellectual disabilities can experience homelessness, and some of the reasons differ from the general homeless population. Specific policy and practice responses are required.

METHOD

A systematic review of studies examining homelessness among people with intellectual disabilities utilizing CINAHL, MEDLINE, PsycINFO and Sociological Abstracts databases from inception to November 2019.

RESULTS

The search produced 259 papers, and following screening, a total of 13 papers were included in the review. The themes identified were (i) pathways into homelessness, (ii) experiencing homelessness and (iii) routes out of homelessness.

CONCLUSIONS

People with ID become homeless due to multifactorial issues. The identification of people within homeless services and their care and support concerns remains challenging, impacting upon the provision of assessments, interventions, care and supports. Psychosocial assessments, interventions and supports are necessary to assist people with ID to leave homelessness.

[One homeless person out of ten suffers from cognitive disorders: What do we know about these impairments? A systematic review of homeless people's cognition]

OBJECTIVES

Homelessness is associated with several issues (psychiatric and neurological disorders, neurodevelopmental difficulties, malnutrition…) which are also risk factors for cognitive disorders. However, little is known about the relationship between the cognition of homeless people and these eventual explicative etiologies. The aim of this work is to complete the results of Depp et al. about cognition in homelessness by proposing a systematic review of the neuropsychological disorders of homeless people associated with an analysis of the etiologies likely to explain these disorders.

METHODS

We followed the PRISMA recommendations to build up this work. We analyzed the abstracts of 385 papers found on databases PSYCINFO and PubMed. Twenty-two studies have been selected for respecting our criteria (at least one valid neuropsychological test ; general group of homeless people and not a sub-group of this population ; study published in English). The prevalence quality has been evaluated through the criteria of Loney et al. Cognitive scores and etiological factors have been compared between studies.

RESULTS

The 22 studies represent only nine countries. More than half of them are considered as having a poor prevalence quality. In total, 4,256 participants have been evaluated. Their mean age was around 40 years, and 85 % of the participants were men. The results show a prevalence of cognitive disorders (MMSE) in 8.77 % of the sample. The mean IQ was 87.47 and the premorbid IQ 94.59. We also notice possible disorders affecting the episodic memory and the executive functions. Mean scores for short-term memory, speech and visuo-spatial functions are relatively low. None of the studies evaluated the praxia, the gnosia or the social cognition. The heterogeneity of studies and the lack of data did not allow us to give general conclusions about the etiology of these disorders. However, we see that around 40 % of the time subjects had histories of brain injuries and 89 % of childhood trauma. Intellectual disability is found in 49 % of the sample of a single study. Also, 70 % of the homeless population have been diagnosed with substance-related disorders and 65 % with psychiatric disorders. It appears that the only factors correlated with cognitive disorders would be the history of brain injuries and childhood traumas.

CONCLUSIONS

We confirm that homeless people often suffer from cognitive difficulties, and some of these difficulties (memory, executive functioning) are severe. Yet the etiology of these disorders remain relatively unknown: even if we observe a high prevalence of psychiatric, substance-related, neurodevelopmental and neurological issues by the homeless population, only a few of them (brain injury history and childhood trauma) seem to be correlated with cognition in homelessness. The potential explicative factors have been too rarely explored to bring a powerful explanation of cognitive disorders in homeless people. Further research needs to be done in order to give a more precise neuropsychological profile of the homeless population and to better understand what the disorders are rooted in. Last but not least, all this research and knowledge should be applied more to the care of homeless people by providing neuropsychological assessment and rehabilitation and by training the team to detect cognitive disorders and to support the person with a cognitive disability.

Relationship between non-communicable diseases and background characteristics among homeless people in Nagoya City, Japan

Background

There are few reports that objectively show actual health conditions among the homeless or diagnoses of non-communicable diseases based on blood tests. This report discloses the actual data from blood tests and non-communicable diseases among the participants. Furthermore, associations between the test values for lifestyle-related disease and mental disorder/intellectual disability, as well as personal backgrounds of homeless people, were analyzed from the data gathered in the survey.

Methods

This study was performed in a rented meeting room close to Nagoya Station on November 2, 2014. Blood samples, physical measurements, blood pressure measurements intellectual faculties were measured. Physical/mental diseases were diagnosed by doctors. Fisher’s exact test was performed to compare between subgroups (by participants’ socio-demographic data or the presence of mental illness/cognitive disability) according to non-communicable disease test values, and to calculate the odds ratio.

Results

Abnormalities among participants in test values for non-communicable disease were as follows: hypoalbuminemia in one participant (0.9%), abnormalities in liver function in 22 participants (19.3%), decreased renal function in two participants (1.8%), dyslipidemia in 67 participants (58.8%), "a person whose impaired glucose tolerance cannot be ruled out" in 20 participants (17.5%), obesity in 33 participants (28.9%), thinness in five participants (4.3%), and hypertension in 60 participants (52.6%). Compared to the National health and nutrition survey 2015, non-communicable diseases of the homeless people were similar or slightly better than in the general population in Japan. Participants aged 20–39 years had a significant positive tendency of having liver function abnormality compared to ≥60 years old participants. There was no significant tendency with socio-demographic characteristics in dyslipidemia and “impaired glucose tolerance”.

Conclusion

It was found that the percentage of homeless people in Nagoya who showed abnormalities of lifestyle-related disease was similar or better than that of general population in Japan.

Multimorbidity and emergency department visits by a homeless population: a database study in specialist general practice

BACKGROUND

Estimating healthcare needs of the homeless is associated with challenges in identifying the eligible population.

AIM

To explore the demographic characteristics, disease prevalence, multimorbidity, and emergency department visits of the homeless population.

DESIGN AND SETTING

EMIS electronic database of patient medical records and Quality and Outcomes Framework (QOF) data of all 928 patients registered with a major specialist homeless primary healthcare centre based in the West Midlands in England, from the period of October 2016 to 11 October 2017.

METHOD

Prevalence data on 21 health conditions, multimorbidity, and visits to emergency departments were explored and compared with the general population datasets.

RESULTS

Most homeless people identified were male (89.5%), with a mean age of 38.3 (SD = 11.5) years, and of white British origin (22.1%). Prevalence of substance (13.5%) and alcohol dependence (21.3%), hepatitis C (6.3%), and multimorbidity (21.3%) were markedly higher than in the general population. A third (32.5%) had visited the emergency department in the preceding 12 months. Emergency department visits were associated with a patient history of substance (odds ratio [OR] = 2.69) and alcohol dependence (OR = 3.14).

CONCLUSION

A high prevalence of substance and alcohol dependence, and hepatitis C, exists among the homeless population. Their emergency department visit rate is 60 times that of the general population and the extent of multimorbidity, despite their lower mean age, is comparable with that of 60-69-year-olds in the general population. Because of multimorbidity, homeless people are at risk of fragmentation of care. Diversification of services under one roof, preventive services, and multidisciplinary care are imperative.

Cognitive impairment and homelessness: A scoping review

This paper reports the findings of a scoping review designed to identify research which has explored the relationship between cognitive impairment and homelessness. A systematic search of databases for articles published between 2007 and 2017 was conducted using keywords relating to cognitive impairments and homelessness. Sources were expanded using manual searches of citations and grey literature. Forty studies represented in 45 papers were selected for review using predefined inclusion criteria. Sources were subject to quality appraisal and data were extracted in line with review questions. Prevalence studies were over-represented in the review, while qualitative data were lacking. Aetiology of impairments was delineated by acquired and developmental causes. A variety of measures were employed by studies which were not validated in homeless populations. Studies did not give sufficient consideration to co-occurring disorders and overlapping symptoms between aetiologies. Because of these factors, it was difficult to conclude that all studies had accurately measured what they set out to; however, the evidence suggested that cognitive impairment was disproportionately over-represented in homeless populations. Cognitive impairment was found to be both a risk factor to and perpetuator of homelessness. Risk factors for homelessness were similar to those of the general population, though exaggerated by sequelae of certain cognitive impairments. The results of this review suggest that more attention needs to be paid to the underlying socioeconomic disadvantages, persons with cognitive impairments face which may lead to homelessness. Further research should prioritise the voice of homeless persons with cognitive impairments, to better understand both causes of homelessness and effective methods of rehabilitation.

Borderline Intellectual Functioning and Lifetime Duration of Homelessness among Homeless Adults with Mental Illness

This paper reports on the association between intellectual functioning and lifetime homelessness duration among 172 homeless adults with mental illness in Toronto, Canada. Using a standardized test of intellectual functioning, we created two groups: individuals with borderline or lower intellectual functioning (16%) and individuals with above borderline intellectual functioning (84%). Lifetime homelessness duration was approximately three years longer, or almost twice as long, for individuals with borderline or lower intellectual functioning. Implementing more systematic strategies for identifying and supporting individuals with cognitive impairments may hasten transitions out of homelessness for this population. Brief intellectual functioning assessment tools are available.

The Effect of Housing First on Housing Stability for People with Mental Illness and Low Intellectual Functioning

OBJECTIVE

Housing First (HF) has been linked to increased tenure in housing for homeless people with mental illness, but the effect of HF on housing stability for people with borderline or lower intellectual functioning has not been examined. This study of homeless adults with mental illness in Toronto, Ontario assessed whether the association between housing stability and HF differed for adults with borderline or lower intellectual functioning, compared to adults with above borderline intellectual functioning.

METHOD

This study included 172 homeless adults with mental illness from the Toronto site of the At Home-Chez Soi randomized trial that compared receiving HF relative to treatment as usual. This sample was divided into two intellectual functioning groups: 1) adults with borderline or lower intellectual functioning (IQ < 85, 16%), and 2) adults with above borderline intellectual functioning (IQ ≥ 85, 84%). We compared these groups by modelling the percentage of days stably housed using a linear multivariable generalized estimating equation and included interaction between treatment and intellectual functioning. An interaction between treatment and time was also included.

RESULTS

There were no overall differences in housing stability for individuals with borderline or lower intellectual functioning compared to people with higher than borderline intellectual functioning in either the HF or the treatment as usual groups.

CONCLUSION

This study is the first to demonstrate that for homeless adults with mental illness, borderline or lower intellectual functioning did not significantly affect housing stability. This accentuates the need for more research and potentially wider consideration of their inclusion in housing interventions, such as HF.

Prevalence of Mental Illness, Cognitive Disability, and Their Overlap among the Homeless in Nagoya, Japan

BACKGROUND

While the prevalence of mental illness or cognitive disability is higher among homeless people than the general population in Western countries, few studies have investigated its prevalence in Japan or other Asian countries. The present study conducted a survey to comprehensively assess prevalence of mental illness, cognitive disability, and their overlap among homeless individuals living in Nagoya, Japan.

METHODS

Participants were 114 homeless individuals. Mental illness was diagnosed based on semi-structured interviews conducted by psychiatrists. The Wechsler Adult Intelligence Scale-III (WAIS-III, simplified version) was used to diagnose intellectual/ cognitive disability.

RESULTS

Among all participants, 42.1% (95% CI 33.4-51.3%) were diagnosed with a mental illness: 4.4% (95% CI 1.9-9.9%) with schizophrenia or other psychotic disorder, 17.5% (95% CI 11.6-25.6%) with a mood disorder, 2.6% (95% CI 0.9-7.5%) with an anxiety disorder, 14.0% (95% CI 8.8-21.6%) with a substance-related disorder, and 3.5% (95% CI 1.4-8.8%) with a personality disorder. Additionally, 34.2% (95% CI 26.1-43.3%) demonstrated cognitive disability: 20.2% (95% CI 13.8-28.5%) had mild and 14.0% (95% CI 8.8-21.6%) had moderate or severe disability. The percent overlap between mental illness and cognitive disability was 15.8% (95% CI 10.2-23.6%). Only 39.5% (95% CI 26.1-43.3%) of the participants were considered to have no psychological or cognitive dysfunction. Participants were divided into four groups based on the presence or absence of mental illness and/or cognitive disability. Only individuals with a cognitive disability reported a significant tendency toward not wanting to leave their homeless life.

CONCLUSION

This is the first report showing that the prevalence of mental illness and/or cognitive disability among homeless individuals is much higher than in the general Japanese population. Appropriate support strategies should be devised and executed based on the specificities of an individual's psychological and cognitive condition.