Adaptation of the Barts Explanatory Model Inventory to dementia understanding in South Asian ethnic minorities

The Barts Explanatory Model Inventory for Dementia: An item reduction approach based on responses from South Asian communities

BACKGROUND

Cultural differences in how the symptoms, causes, consequences, and treatments of dementia are understood and interpreted by South Asian people are a commonly expressed reason for late- or nonuse of mental health and care services. However, systematic collection of information on South Asian perceptions of dementia is hindered by a lack of appropriate instrumentation.

OBJECTIVES

To produce a shortened version of the Barts Explanatory Model Inventory for Dementia (BEMI-D) schedule.

METHODS

A two stage item reduction approach was employed first using multidimensional scaling categorizing items as core, intermediate, or outlier. Then, item review was undertaken using three criteria: literature importance, clinical face validity, and sub-group prevalence. The analysis followed a nonmetric multidimensional scaling method based on a two-way proximity matrix.

RESULTS

The original BEMI-D had 197 items allocated to four checklists: symptoms, causes, consequences, and treatments. The two stage item reduction approach resulted in the removal of 75 items. These reductions were achieved across all four checklists in relatively equal proportions. There was no evidence of substantive content loss in the revised schedule. The reduced version of the schedule comprises 122 items.

CONCLUSIONS

A condensed version of the BEMI-D is more efficient as an assessment schedule that captures the culturally diverse perceptions of memory problems for South Asians offering a balanced trade-off between feasibility of use and content validity.

Age, memory loss and perceptions of dementia in South Asian ethnic minorities

BACKGROUND

South Asian older adults are represented less frequently in mainstream mental health services or those for people with dementia. This study aimed to explore in detail the perceptions of dementia (symptoms, causes, consequences, treatments) held by South Asians and to discern how these understandings vary by age and by the self-recognition of memory problems, as these influence help-seeking behaviour.

METHODS

Participants were allocated to three groups: younger adults; older adults; and older adults with subjective memory problems. They completed the semi-structured Barts Explanatory Model Inventory for Dementia schedule, whilst older adults also completed measures of cognition (MMSE), and depression (GDS). Interviews were conducted in English, Gujarati or Urdu.

RESULTS

Groups were similar in identifying unusual forgetting and confusion as the most frequent symptoms; stress and age as the most frequent causes; and talking to your GP/nurse, taking medication, and talking to family and friends as the most frequent treatments. Younger adults more often knew about risk factors and reported practical consequences more than older adults. Older adults with subjective memory problems were more likely to describe sleep related problems or symptoms commonly associated with depression. They more often cited as causes of dementia lack of sleep, side effects of medication and medical reasons, and mentioned religion as a means to cope.

CONCLUSIONS

Findings highlight variability in perceptions of dementia across the South Asian Community and identify specific areas where dementia awareness could be raised in South Asian sub-groups to improve timely diagnosis, treatment outcomes and service access.

Dementia in UK South Asians: a scoping review of the literature

OBJECTIVE

Over 850 000 people live with dementia in the UK. A proportion of these people are South Asians, who make up over 5% of the total UK population. Little is known about the prevalence, experience and treatment of dementia in the UK South Asian population. The aim of this scoping review is to identify dementia studies conducted in the UK South Asian population to highlight gaps in the literature which need to be addressed in future research.

METHOD

Databases were systematically searched using a comprehensive search strategy to identify studies. A methodological framework for conducting scoping reviews was followed. An extraction form was developed to chart data and collate study characteristics and findings. Studies were then grouped into six categories: prevalence and characteristics; diagnosis validation and screening; knowledge, understanding and attitudes; help-seeking; experience of dementia; service organisation and delivery.

RESULTS

A total of 6483 studies were identified, 27 studies were eligible for inclusion in the scoping review. We found that studies of prevalence, diagnosis and service organisation and delivery in UK South Asians are limited. We did not find any clinical trials of culturally appropriate interventions for South Asians with dementia in the UK. The existing evidence comes from small-scale service evaluations and case studies.

CONCLUSIONS

This is the first scoping review of the literature to identify priority areas for research to improve care for UK South Asians with dementia. Future research should first focus on developing and validating culturally appropriate diagnostic tools for the UK South Asians and then conducting high-quality epidemiological studies in order to accurately identify the prevalence of dementia in this group. The cultural adaptation of interventions for dementia and testing in randomised controlled trials is also vital to ensure that there are appropriate treatments available for the UK South Asians to access.

Perceptions of self-defined memory problems vary in south Asian minority older people who consult a GP and those who do not: a mixed-method pilot study

OBJECTIVE

South Asian older adults access services for mental health problems and dementia less than other older people in the UK, unlike for physical health problems. This pilot study investigated how South Asians with self-defined memory problems, with and without GP consultation, construe the symptoms, causes, consequences and treatment of the condition.

METHODS

Participants were recruited through community centres, their networks and memory clinics in Greater Manchester. The newly developed Barts Explanatory Model Inventory for Dementia (BEMI-D) was administered to 33 (18 M, 15 F) older South Asians aged 65 or above with memory problems in English, Gujarati or Urdu. Furthermore, cognition, executive function and depression were assessed.

RESULTS

Perceptions of dementia varied by GP consultation for memory problems. A greater proportion of older adults without a consultation considered memory problems to be given by God, saw acceptance of fate as an alternative treatment and did not identify medical support as appropriate. Forgetfulness and loss of social meaning were identified as symptoms of dementia more by those with a consultation. Higher levels of diabetes, heart disease and depression were found in those without a consultation.

CONCLUSIONS

Differences in perceptions may influence the decision about consulting a GP. Similarly, consultation for memory problems appears linked to extent physical health problems and mental health consultation (depression). These variations reported on a small scale in this pilot study suggest the need to explore the impact of perceptions on rates of GP consultation, so as to improve timely diagnosis and access to appropriate services.