The Lawton Instrumental Activities Daily Living/Activities Daily Living Scales: A Sensitive Test to Alzheimer Disease in Community-Dwelling Elderly People?

The electronic health record Risk of Alzheimer's and Dementia Assessment Rule (eRADAR) Brain Health Trial: Protocol for an embedded, pragmatic clinical trial of a low-cost dementia detection algorithm

BACKGROUND

About half of people living with dementia have not received a diagnosis, delaying access to treatment, education, and support. We previously developed a tool, eRADAR, which uses information in the electronic health record (EHR) to identify patients who may have undiagnosed dementia. This paper provides the protocol for an embedded, pragmatic clinical trial (ePCT) implementing eRADAR in two healthcare systems to determine whether an intervention using eRADAR increases dementia diagnosis rates and to examine the benefits and harms experienced by patients and other stakeholders.

METHODS

We will conduct an ePCT within an integrated healthcare system and replicate it in an urban academic medical center. At primary care clinics serving about 27,000 patients age 65 and above, we will randomize primary care providers (PCPs) to have their patients with high eRADAR scores receive targeted outreach (intervention) or usual care. Intervention patients will be offered a "brain health" assessment visit with a clinical research interventionist mirroring existing roles within the healthcare systems. The interventionist will make follow-up recommendations to PCPs and offer support to newly-diagnosed patients. Patients with high eRADAR scores in both study arms will be followed to identify new diagnoses of dementia in the EHR (primary outcome). Secondary outcomes include healthcare utilization from the EHR and patient, family member and clinician satisfaction assessed through surveys and interviews.

CONCLUSION

If this pragmatic trial is successful, the eRADAR tool and intervention could be adopted by other healthcare systems, potentially improving dementia detection, patient care and quality of life.

Functional disabilities and changes in sleep quality and duration among older adults: results from a longitudinal study in China, 2005-2014

PURPOSE

We examined the associations of activities of daily living (ADL) and instrumental activities of daily living (IADL) with changes in sleep-related measurements among Chinese older adults from 2005 to 2014.

METHODS

Four waves of longitudinal data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS; 2005-2014; n = 42,417) were used. Two sleep-related measurements were included: sleep quality and meeting the recommended daily sleep duration (7-8 h). We used Cox two-state regression models to examine the different states of sleep quality and duration.

RESULTS

Approximately 43.6% of observations were between 81 and 95 years old, and 35.9% were between 65 and 80 years old. Around 54.8% of observations were female. Older adults with more ADL and IADL limitations had a higher risk of experiencing declines in sleep quality and the transition from meeting to not meeting the recommended sleep duration over time (all p < 0.01).

CONCLUSION

ADL and IADL limitations are significant risk factors for the development of sleep-related issues over time among Chinese older adults. Functional limitations need to be included in intervention strategies focused on sleep hygiene and studies examining changes in sleep patterns over time.

A Description of Handgrip Strength in the Very Older Adult People Living in Rural Vietnam and Its Association with Daily Functions

Objective

To describe handgrip strength (HGS) and identify associated factors in community-dwelling older adults in rural Vietnam.

Methods

A cross-sectional study was conducted in community-dwelling older adults 80 years and over in five rural communities in Hanoi, Vietnam. Age-gender-BMI stratified HGS values were reported as means and standard deviations. Demographic characteristics, malnutrition, risk of fall, basic activities of daily living (ADL), and instrumental activities of daily living (IADL) were investigated. Multivariate linear regression explored the association between HGS and these factors.

Results

In 308 participants, mean age was 85.4 ± 4.2 years. Mean HGS was 21.6 ± 6.1 kg for males and 15.3 ± 4.3 kg for females. HGS in our sample was generally lower than that in other European countries and Asian threshold. Low HGS was correlated with older age (β = -0.196, p < 0.001), female (β = -0.443, p < 0.001), low education (β = -0.130, p < 0.05), risk of falls (β = -0.114, p < 0.05), and lower IADL (β = 0.153, p = 0.001).

Conclusions

The age-gender-BMI stratified HGS values of 80 years and over community-dwellers in rural Vietnam were described. HGS decreased with advanced age, female, low education, high risk of falls, and impaired IADLs. The results could provide useful reference data for further investigations and measures in clinical practice.

The power of the Functional Activities Questionnaire for screening dementia in rural-dwelling older adults at high-risk of cognitive impairment

AIM

A simple approach to detecting dementia in its early stages may help improve patient care. We therefore aimed to assess the power of the Functional Activities Questionnaire (FAQ) for screening dementia among rural-dwelling older adults who are at high-risk for cognitive impairment.

METHODS

This study included 961 participants at a high-risk for dementia who had been identified from a population-based survey of Chinese rural residents. All participants were aged 65 years and older and positive for cognitive impairment according to the Mini-Mental State Examination or the Ascertain Dementia 8-item Informant Questionnaire screening tests. The FAQ scale was used to evaluate daily activities. Dementia was diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, 4th edition, criteria. Receiver operating characteristic curve analyses were used to determine the FAQ's optimal cut-offs for dementia. The power (or accuracy) of the FAQ for screening dementia was analyzed in the total sample and in subgroups categorized by age, gender, and educational level.

RESULTS

Of the 961 participants, 84 (8.7%) were clinically diagnosed with dementia. Among individuals who were positive for cognitive impairment on the Mini-Mental State Examination or the Ascertain Dementia 8-item Informant Questionnaire, the parameters for an FAQ cut-off score ≥6 as a means of discriminating those with dementia from those without dementia were area under curve = 0.899, sensitivity = 94.1%, specificity = 75.1%, positive likelihood ratio = 3.78, and accuracy = 0.768. The discriminant abilities of the FAQ scale varied with age, gender, and educational level. The discriminant parameters of the FAQ scale were similar overall among individuals who were positive on either the Mini-Mental State Examination or the Ascertain Dementia 8-item Informant Questionnaire test alone.

CONCLUSION

The FAQ scale has high discriminative power to screen for dementia among rural older residents with suspected cognitive impairment.

[Predictive validity of the VIDA questionnaire on functional decline, institutionalisation or death in patients with multiple morbidities]

INTRODUCTION

The VIDA Spanish questionnaire assesses instrumental activities of daily living (IADL) in elderly people, and has shown to have adequate content, construct validity, and reliability. The objective was to analyse its predictive validity in patients with multiple morbidities aged ≥65 years without severe/total dependence in basic activities (BADL, Barthel index ≥60 points), by measuring any changes in this severe/total level of dependence, institutionalisation, or death at 8 and 18 months of follow-up.

METHODS

A prospective study of a diagnostic test was conducted on 197 patients (8 months) and 185 (18 months) included in the multiple morbidities program according to stratification by Adjusted Clinical Groups (ACG) or by fulfilling the Ollero criteria. Patients that were institutionalised, at the end of life, or on dialysis, or with a baseline Barthel index ≥60 points were excluded. The VIDA questionnaire was applied at baseline. The other baseline variables included age, gender, Charlson index, number of drugs, and Lawton-Brody index. The outcome event was changing the Barthel index to <60, or institutionalisation, or death, in each follow-up period.

RESULTS

The median age was 81 years (IQR 74.5-85), and 45.2% were women. At 8 months, the best cut-off point for VIDA was ≤31 points (Sensitivity [S] 81.5%, [95% CI; 61.2-93.0]; Specificity (Sp) 58.2% [95% CI; 50.4-65.7], PPV 23.7%; NPV 95.2%), ≤30 in women, ≤34 in men. And at 18 months, ≤29 points (S 61.4 [95% CI; 47.6-73.7]; Sp 76.6 [95% CI; 68.1-83.4]; PPV 53.9; NPV 81.7).

CONCLUSIONS

Overall cut-off points are provided as well as those for gender, predicting severe/total BADL decline, or institutionalization or death in patients with multiple morbidities. It seems to detect short-term events better and rules them out in the long term.

Hospital Discharge Decisions Concerning Older Patients: Understanding the Underlying Process

ABSTRACTWe aimed to understand clinical decision-making processes that influence the orientation of older patients after hospital discharge. We compared discharge decisions (i.e., discharge home, or nursing home stay) of the hospital team with those of an expert panel. Both panel and hospital team made their decisions independently. The blind study included 102 patients (mean age: 83.13 ± 6.74). There is a statistically significant difference between expert and hospital team decisions (p &lt; .001; kappa coefficient: 0.468). Panel decisions were more closely associated with isolation (p = .018), reliable caregivers (p = .004), social problems (p = .001), and behavioural symptoms perceived as aggressive (p = .001). Both decision processes considered refusal of care (p = 0,025 and 0.016 respectively) and social problems (p = .001 and &lt; 0.001 respectively). Discharge planning models differ depending on the country, team and patient's condition. Our study suggests more precise evaluation of patients' needs.

Diagnostic accuracy of Instrumental Activities of Daily Living for dementia in community-dwelling older adults

BACKGROUND

many people living with dementia remain underdiagnosed and unrecognised. Screening strategies are important for early detection.

OBJECTIVE

to examine whether the Lawton's Instrumental Activities of Daily Living (IADL) scale, compared with other cognitive screening tools-the Mini-Mental State Examination (MMSE), and the Ascertain Dementia 8-item Informant Questionnaire (AD8)-can identify older (≥ 65 years) adults with dementia.

DESIGN

population-based cross-sectional observational study.

SETTING

all 19 counties in Taiwan.

PARTICIPANTS

community-dwelling older adults (n = 10,340; mean age 74.87 ± 6.03).

METHODS

all participants underwent a structured in-person interview. Dementia was identified using National Institute on Aging-Alzheimer's Association core clinical criteria for all-cause dementia. Receiver operator characteristic curves were used to determine the discriminant abilities of the IADL scale, MMSE and AD8 to differentiate participants with and without dementia.

RESULTS

we identified 917 (8.9%) participants with dementia, and 9,423 (91.1%) participants without. The discriminant abilities of the MMSE, AD8 and IADL scale (cutoff score: 6/7; area under curve = 0.925; sensitivity = 89%; specificity = 81%; positive likelihood ratio = 4.75; accuracy = 0.82) were comparable. Combining IADL with AD8 scores significantly improved overall accuracy: specificity = 93%; positive likelihood ratio = 11.74; accuracy = 0.92.

CONCLUSIONS

our findings support using IADL scale to screen older community-dwelling residents for dementia: it has discriminant power comparable to that of the AD8 and MMSE. Combining the IADL and the AD8 improves specificity.

Study on the quality of life and the factors influencing it in elderly patients

A society of advanced age is arriving with the increasing number of elderly patients. Little attention has been paid to the quality of life of elderly patients, which is decreasing gradually. This article aims to study the quality of life among elderly patients and explore the factors influencing it, in addition to exploring effective ways to improve the quality of life of elderly patients.

Factors influencing time between onset of signs/symptoms and referral for dementia in elderly outpatients

BACKGROUND

The few studies that have focused on Time between Onset of Signs and Symptoms and Referral (TOSR) for dementia to a memory center suggest a substantial delay of 1-3 years. This delay has a negative impact on both patients' and their caregivers' quality of life.

OBJECTIVE

This study aimed to evaluate this delay and the factors associated with it in a cohort of community-dwelling elderly people attending a memory clinic, as well as assess the impact of the Third French National Alzheimer Plan (2008-2012).

METHODS

All patients referred to the Bretonneau Memory Clinic for the first time between January 2006 (the clinic has maintained a specific database since then) and March 2016 were included in the study.

RESULTS

Of the 8543 patients attending our Memory Clinic during the study period, 3353 attending for the first time and with complete data were included. Briefly, their ages were 82±7 years, and 67.2% were female; MMSE score was 21.2±6.6, IADL was 4.06±0.78 and the social-needs category of the Groupes Iso Ressources (GIR); Iso-Resource Group (IRG) scale was 4.04±0.37. The TOSR was, on average, 35.4±30.24 months, and increased after implementation of the Third French National Alzheimer Plan, from 26.68±26.28 months before 2009 to 40.08±31.2 months after 2009. Age and MMSE were associated with TOSR, but not the type of dementia, household composition and social characteristics. Also, there was a shorter TOSR for mild cognitive impairment than for dementia patients.

CONCLUSION

Our results emphasize the need for more education and information among the general public about the early signs of cognitive impairment, especially in elderly people.

Early diagnosis of mild cognitive impairment and mild dementia through basic and instrumental activities of daily living: Development of a new evaluation tool

BACKGROUND

Assessment of activities of daily living (ADL) is paramount to determine impairment in everyday functioning and to ensure accurate early diagnosis of neurocognitive disorders. Unfortunately, most common ADL tools are limited in their use in a diagnostic process. This study developed a new evaluation by adopting the items of the Katz Index (basic [b-] ADL) and Lawton Scale (instrumental [i-] ADL), defining them with the terminology of the International Classification of Human Functioning, Disability and Health (ICF), adding the scoring system of the ICF, and adding the possibility to identify underlying causes of limitations in ADL.

METHODS AND FINDINGS

The construct validity, interrater reliability, and discriminative validity of this new evaluation were determined. From 2015 until 2016, older persons (65-93 y) with normal cognitive ageing (healthy comparison [HC]) (n = 79), mild cognitive impairment (MCI) (n = 73), and Alzheimer disease (AD) (n = 71) underwent a diagnostic procedure for neurocognitive disorders at the geriatric day hospital of the Universitair Ziekenhuis Brussel (Brussels, Belgium). Additionally, the ICF-based evaluation for b- and i-ADL was carried out. A global disability index (DI), a cognitive DI (CDI), and a physical DI (PDI) were calculated. The i-ADL-CDI showed high accuracy and higher discriminative power than the Lawton Scale in differentiating HC and MCI (area under the curve [AUC] = 0.895, 95% CI .840-.950, p = .002), MCI and AD (AUC = 0.805, 95% CI .805-.734, p = .010), and HC and AD (AUC = 0.990, 95% CI .978-1.000, p < .001). The b-ADL-DI showed significantly better discriminative accuracy than the Katz Index in differentiating HC and AD (AUC = 0.828, 95% CI .759-.897, p = .039). This study was conducted in a clinically relevant sample. However, heterogeneity between HC, MCI, and AD and the use of different methods of reporting ADL might limit this study.

CONCLUSIONS

This evaluation of b- and i-ADL can contribute to the diagnostic differentiation between cognitively healthy ageing and neurocognitive disorders in older age. This evaluation provides more clarity and nuance in assessing everyday functioning by using an ICF-based terminology and scoring system. Also, the possibility to take underlying causes of limitations into account seems to be valuable since it is crucial to determine the extent to which cognitive decline is responsible for functional impairment in diagnosing neurocognitive disorders. Though further prospective validation is still required, the i-ADL-CDI might be useful in clinical practice since it identifies impairment in i-ADL exclusively because of cognitive limitations.

A Comparison of Five Brief Screening Tools for HIV-Associated Neurocognitive Disorders in the USA and South Africa

Screening for HIV-associated neurocognitive disorders (HAND) is important to improve clinical outcomes. We compared the diagnostic sensitivity and specificity of the mini-mental state examination, International HIV dementia scale (IHDS), Montreal cognitive assessment, Simioni symptom questionnaire and cognitive assessment tool-rapid version (CAT-rapid) to a gold standard neuropsychological battery. Antiretroviral-experienced participants from Cape Town, South Africa, and Baltimore, USA, were recruited. The sensitivity and specificity of the five tools, as well as those of the combined IHDS and CAT-rapid, were established using 2 × 2 contingency tables and ROC analysis. More than a third (65165) had symptomatic HAND. In detecting HIV-D, the CAT-Rapid had good sensitivity (94 %) and weak specificity (52 %) (cut-point ≤10), while the IHDS showed fair sensitivity (68 %) and good specificity (86 %) (cut-point ≤10). The combined IHDS and CAT-rapid showed excellent sensitivity and specificity for HIV-D at a cut-off score of ≤16 (out of 20; 89 and 82 %). No tool was adequate in screening for any HAND. The combination IHDS and CAT-rapid tool appears to be a good screener for HIV-D but is only fairly sensitive and poorly specific in screening for any HAND. Screening for milder forms of HAND continues to be a clinical challenge.

Assessment of Activities of Daily Living, Self-Care, and Independence

Activities of daily living (ADL) comprise the basic actions that involve caring for one's self and body, including personal care, mobility, and eating. In this review article, we (1) review useful clinical tools including a discussion on ways to approach ADL assessment across settings, (2) highlight relevant literature evaluating the relationship between cognitive functioning and ADLs, (3) discuss other biopsychosocial factors affecting ADL performance, (4) provide clinical recommendations for enhancing ADL capacity with an emphasis on self-care tasks (eating, grooming, dressing, bathing and toileting), and (5) identify interventions that treatment providers can implement to reduce the burden of ADL care.