Prevalence of dementia syndromes in persons living in homes for the elderly and in nursing homes in southern Sweden

A Nationwide Survey of Dementia Prevalence in Long-Term Care Facilities in Taiwan

Background: As the average life expectancy of global citizens has increased, the prevalence of dementia has increased rapidly. The number of patients with dementia has increased by 6.7 times, reaching 300,000 in the past three decades in Taiwan. To realize the latest actual situation, the need for institutional care for elderly patients with dementia, and also a reference basis for government agencies to formulate dementia-related care policies, we investigated the institutional prevalence of dementia. Methods: We randomly sampled 299 out of the 1607 registered long-term care facilities including senior citizens’ institutions, nursing homes, and veteran homes in every administrative region of Taiwan. Then, a two-phase survey including MMSE screening, CDR, and clinical confirmation was conducted on each subject from 2019 to 2020. Results: Among 5753 enrolled subjects, 4765 from 266 facilities completed the examinations with a response rate of 82.8%. A total of 4150 subjects were diagnosed with dementia, 7.4% of whom had very mild dementia. The prevalence of all-cause dementia, including very mild dementia, was 87.1% in all facilities, 87.4% in senior citizens’ institutions, 87.1% in nursing homes, and 83.3% in veteran homes. Advanced age, low education, hypertension, Parkinsonism, respiratory disease, stroke, and intractable epilepsy were associated with dementia risk. Conclusions: We show that in an aged society, the prevalence of all-cause dementia in long-term care institutions can be as high as 87.1%. This study was completed before the outbreak of COVID-19 and provides a precious hallmark for future epidemiological research. We recommend that the long-term care policy in an aged society needs to take into account the increasing high prevalence of dementia in the institution.

Prevalence of dementia in long-term care institutions: a meta-analysis

ABSTRACT Objective: This study comprises a systematic review and meta-analysis that aimed to estimate the prevalence of dementia in long-term care institutions (LTCIs). Methods: We used the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). Original transversal and longitudinal articles published until July 2020 were eligible in this review. Databases PubMed/MedLine, Web of Science, Scopus and ScienceDirect were searched. Overall prevalence and confidence intervals were estimated. Heterogeneity was calculated according to the index of heterogeneity (I2). Results: One hundred seventy-five studies were found in all databases and 19 studies were meta-analyses, resulting in an overall prevalence of 53% (CI 46-59%; p < 0.01) of demented older adults living in LTCIs. Conclusion: Prevalence of dementia is higher in older adults living in LTCIs than those living in general communities. This data shows a worrying reality that needs to be changed. There is a need for a better understanding of the elements that cause this increase in dementia in LTCFs to direct actions to improve the quality of life and health of institutionalized elderly.

Legibility of floor plans and wayfinding satisfaction of residents in Care and Attention homes in Hong Kong

OBJECTIVE

Focusing on Hong Kong Care and Attention homes which provide residential care, meals, personal care and limited nursing care for older people, this study aimed to understand the impact of floor plans' legibility (layout and complexity) on residents' wayfinding satisfaction and self-reported health status.

METHODS

A questionnaire survey was conducted in nine Care and Attention homes. Space syntax, a well-established method, was used to evaluate the legibility of their floor plans via calculating the integration value.

RESULTS

Familiarity with Care and Attention homes did not influence the residents' satisfaction with wayfinding. The integration value had a significant impact on residents' satisfaction with wayfinding. No relationship was observed between integration value and self-reported health status.

CONCLUSION

Increasing complexity in floor plans appears to negatively affect residents' wayfinding satisfaction. These data suggest that circulation patterns should be improved for better wayfinding.

Proxy screening tools improve the recognition of dementia in old-age homes: results of a validation study

BACKGROUND

Despite the high true prevalence of dementia, demential disorders of residents of old age homes may often be not recognized. There is a need for a standardised tool which includes observations of nursing staff.

OBJECTIVE

To describe and validate the Dementia Screening Scale (DSS) for use by nursing staff in old-age homes.

METHODS

All residents of 20 randomly selected old age homes in the city of Mannheim, Germany (n = 1, 922) were rated by nurses using the seven-item proxy dementia rating scale. Based on a subset of residents (n = 598) the DSS was validated against independent diagnostic assessments made by trained psychologists including the Mini-Mental-State-Examination (MMSE), the Dementia Scale of the Brief Assessment Schedule (BAS DEM), and the Washington University Clinical Dementia Rating (CDR).

RESULTS

Using the CDR as a gold standard, the DSS correctly classified at a cut-off of 2/3, 85.8% of the mildly, moderately, or severely demented residents. The accuracy of the DSS was only a little worse than that of the MMSE and the BAS DEM.

CONCLUSION

The DSS is well-suited for the recognition of dementia in old age homes. It achieved a better validity than global diagnosis-related staff assessments and compared to performance-based instruments. It is easier to apply, more economic, and associated with a fewer rate of non-response.

Symptom profile of delirium in older people with and without dementia

Clinical profiles of delirium in 717 older people with and without dementia age 75 years and older in 4 different types of care were studied. Delirium and dementia were diagnosed according to DSM-IV criteria. Delirious demented participants (n = 135) had more often had previous delirium episodes and were more often being treated with analgesics compared to delirious participants without dementia (n = 180). The clinical profile of delirium in the participants with dementia was more frequently characterized by aggressivity, latency in reaction to verbal stimuli, restlessness and agitation, delusions, anxiousness, hallucinations, and a poorer orientation and recognition. Delirium among demented participants more often had a fluctuating course during the day and was more common in the evening and at night. In conclusion, clinical profiles of delirium in participants with and without dementia are different, which might indicate a different etiology or pathophysiology, or both, and a need for different treatment strategies.

Prevalence of dementia, delirium and psychiatric symptoms in various care settings for the elderly

A prevalence study of psychiatric symptoms was performed in parts of a hospital catchment area in Mid-Sweden. In total 717 patients, aged 75 years and above, who were receiving care in an emergency hospital, three nursing homes, five old people's homes and two home medical care districts were included. All patients were examined using the OBS-scale (Organic Brain Syndrome Scale). Anxiety (51%), psychomotor slowing (45%), delirium (44%), depressed mood (41%), irritability (40%) and dementia (33%) were the most prevalent psychiatric symptoms or diagnoses in the sample but there were wide differences between the four care settings. The present study shows that the prevalence of dementia, delirium and psychiatric symptoms is high in all types of care settings for the elderly. It also demonstrates the need for psychiatric medical and nursing competence in all types of care for the elderly.

Mental impairment and utilization of community services: a study of the elderly in a parish of Stockholm

Before the implementation of the health care reform of 1992 (The Adel Reform), a study of the frequency of mental impairment of people in different residential and care services was conducted in a parish of Stockholm. All residents, 65 years or older, registered with Primary Care Centres, Geriatric Hospitals and other institutions were assessed with respect to cognitive function according to the seven stage "Global Deterioration Scale" (GDS). The age-specific frequencies of mental impairment were similar to prevalences reported in earlier studies. The frequency of cognitive dysfunction of non-institutionalized and institutionalized elderly was 42% and 52%, respectively, and higher for women than for men. There was considerable variation in the prevalence of cognitive dysfunction among subjects in different types of accommodation. For the different stages of mental impairment the average age was about the same. With increasing need and demand for services, and limited resources, these variations in cognitive dysfunction have important implications for structuring appropriate support systems in a population with a rapidly rising proportion of elderly people.

Caring for demented elderly in rural primary health care

In 1988, the demented in an elderly rural population (n = 851) were traced and assessed with the GBS geriatric rating scale. The aim of the study was to investigate the level of impairments of demented persons primary cared for and to relate their impairments to form of housing; to compare the distribution of care between not-demented and demented in an elderly population, and to establish the primary caregiver/patient ratio. The majority of the demented (44/50) were cared for in the studied primary health care area, despite the scarcity of staff. All received formal care. They consumed more formal care than the not-demented in the population. In relation to amount of elderly persons helped, the home-help personnel ratio was 0.30, in district care the ratio was 0.02, whereas the ratio of general practitioners was 0.002, estimated from the number of contacts and staff.

Prevalence and etiology of dementia in a Japanese community

BACKGROUND AND PURPOSE

We sought to determine the type-specific prevalence of dementia and its risk factors in elderly persons from the Japanese community of Hisayama.

METHODS

We studied the prevalence of dementia in 887 Hisayama residents (353 men and 534 women) aged 65 years or older (screening rate, 94.6%) using various items of clinical information, neurological examination, and dementia scales. We also studied brain morphology in 50 of 59 determined to have dementia by computed tomography or autopsy during the subsequent 54-month period. Factors relevant to dementia were compared between 27 patients with vascular dementia and 789 control subjects without dementia in a retrospective fashion.

RESULTS

The prevalence rate of dementia among Hisayama residents aged 65 or older was estimated at 6.7%, with a females to males ratio of 1:2. Among 50 cases of dementia in which brain morphology was examined, the frequency of vascular dementia was 56%; this rate was 2.2 times higher than that for senile dementia of the Alzheimer type. Aging, hypertension, electrocardiographic abnormalities, and high hematocrit were significantly (p less than 0.05) and independently associated with the occurrence of vascular dementia.

CONCLUSIONS

Prevalence of dementia among the Hisayama residents was relatively identical to that previously reported, but vascular dementia was more predominant. Risk factors for vascular dementia were similar to those for lacunar infarcts. Control of hypertension may be a key to reducing dementia among the Japanese population.

Staff burnout in dementia care--relations to empathy and attitudes

Sixty nursing staff in geriatric and psychogeriatric care (RNs, LPNs and nurse's aides) were selected to be studied on two occasions with an interval of one year regarding the relationships between their experience of burnout, empathy and attitudes towards demented patients. A semistructured interview was performed on the second occasion to learn more about their work experience and to relate the ratings of burnout, empathy and attitudes to their experience at work. The staff's experience of burnout changed from a mean score of 2.7 in 1987 to 2.5 in 1988. Their empathic ability was moderately high and increased from 398 (m) in (1987) to 450 (m) in 1988. The attitudes of staff remained unchanged from 1987 to 1988 and no differences were found regarding the staff's age, place of work or time at present place of work. As for the staff's empathy, there was no difference with respect to sex, category of staff or place of work. RN's showed the most positive attitudes towards demented patients both in 1987 and 1988 and differed compared to the nurse's aides and LPN's. Burnout correlated with lower empathy and less positive attitudes in the staff. Regression analysis showed that 'experience of feed-back at work' and 'time spent at present place of work' were the most important factors when explaining burnout among the staff. Staff with high empathy experienced "a close contact with the patient" as the most stimulating factor at work while staff with low empathy experienced "improvement of the patient's health" and "contact with colleagues" as the most stimulating factors. The importance of counteracting burnout in the care of demented patients is stressed.

Mental and physical capacity and consumption of neuroleptic drugs in residents of homes for aged people

The mental and physical capacity of all residents in homes for aged people were estimated, and their neuroleptic drug consumption and duration of stay were registered. One third was moderately to severely mentally impaired and 38% demanded more extensive nursing care. Physical dependence was significantly associated with mental decline, and less with age. One quarter of severely mentally impaired people had stayed for less than one year; 23% of the residents received neuroleptic drugs. Treatment was more common in physically incapacitated people together with wandering and aggressive ones. Lack of psychogeriatric services may enhance the use of neuroleptic drugs in homes for aged people.