Dyspnea, the silent threat in Parkinson's: a mixed methods study.

BACKGROUND: Dyspnea is considered a silent threat to people diagnosed with Parkinson's disease and may be a common concern in patients, however, little is known about how it affects quality of life. This study explored the experiences of independently mobile people who are affected by dyspnea in daily life. METHODOLOGY: This was a cross-sectional mixed methods study that included an online questionnaire and semi-structured interviews. The participants were included if they were diagnosed with Parkinson's disease; had a self-reported Hoehn and Yahr Score I, II or III; were mobilizing independently; and were Arabic speakers. Participants were excluded if they had any other musculoskeletal, cardiac, respiratory, or neurological diseases; or were previous or current smokers; or had been previously hospitalized due to respiratory complications. RESULTS: A total of 117 participants completed the Arabic version of the Dyspnea-12 Questionnaire. Dyspnea was reported in all participants and that it had an adverse effect on their quality of life, especially during activities of daily living. Additionally, participants reported a lack of knowledge about pulmonary rehabilitation and were unaware of the availability and potential benefits of participation in programs. CONCLUSION: Dyspnea was reported in people in the early stages (Hoehn and Yahr Stages I, II, and III) of Parkinson's disease, and may benefit from routine assessment of lung function, dyspnea management and participation in pulmonary rehabilitation.

Psychosocial Characteristics by Pain Presence and Limitations Among Older Adults.

PURPOSE: To compare psychosocial outcomes of older adults according to pain experience. METHOD: Using cross-sectional 2021 data from the National Health and Aging Trends Study, we examined psychosocial characteristics in older adults (N = 3,376) divided into three groups: no pain, pain without activity limitations, and activity-limiting pain. RESULTS: In multiple regression models, older adults with activity-limiting pain compared to those without pain had significantly higher depression, anxiety, and fear of falling, as well as reduced positive affect, self-realization, self-efficacy, resilience, and social participation. Older adults with non-activity-limiting pain had significantly higher social participation than those without pain, but no differences in self-realization, self-efficacy, or resilience. CONCLUSION: Pain is strongly associated with all psychosocial outcomes, especially in older adults with activity-limiting pain. Future research should examine the impact of self-realization, self-efficacy, resilience, and social participation on activity limitations. [Journal of Gerontological Nursing, 50(7), 27-34.].

Sex differences in physical functioning among older adults: cross-sectional results from the OUTDOOR ACTIVE study.

BACKGROUND: Maintaining good functional ability is a key component of healthy ageing and a basic requirement for carrying out activities of daily living, staying independent, and delaying admission to a nursing home. Even though women have a higher life expectancy and slower age-related muscle mass loss than men, they often show a higher prevalence of limitations in physical functioning. However, the reasons behind these sex differences are still unclear. Therefore, the aims of this study were to investigate sex differences among older adults regarding physical functioning and to study which factors are explaining these sex differences. METHODS: Cross-sectional data from participants of the OUTDOOR ACTIVE study residing in Bremen, Germany, aged 65 to 75 years, were included in the analyses. Physical functioning was assessed via a self-administered questionnaire using the SF-36 10-item Physical Functioning Scale. Social, lifestyle, and health-related factors were also assessed using the questionnaire. Physical activity was measured objectively using wrist-worn accelerometers over seven consecutive days. Descriptive analyses with absolute and relative frequencies, means and standard deviations, as well as T-tests and chi-square tests were carried out. To test for associations between sex, physical functioning, and several individual factors, linear regressions were performed. RESULTS: Data of 2 141 participants (52.1% female) were included in the study. Women and men showed statistically significant differences in physical functioning, with men perceiving fewer limitations than women. On average, women had a physical functioning score of 81.4 ± 19.3 and men 86.7 ± 17.0. Linear regression showed a statistically significant negative association between physical functioning score and sex (ß: -0.15, 95% CL: -0.19, -0.10). The association remained statistically significant when adding individual factors to the model. All factors together were only able to explain 51% of the physical functioning-sex association with health indicators and the presence of chronic diseases being the most influential factors. CONCLUSIONS: We found sex differences in physical functioning, with older women having more limitations than older men. The results showed that health-related factors and chronic diseases played the biggest roles in the different physical functioning scores of women and men. These findings contribute to future longitudinal, more in-depth research. TRIAL REGISTRATION: German Clinical Trials Register DRKS00015117 (Date of registration 17-07-2018).

Effectiveness of therapeutic interventions on participation in children with cerebral palsy: A systematic review and meta-analysis.

BACKGROUND: Participation in life activities is an integral part of health and a main outcome of rehabilitation services for children and adolescents with disabilities. However, there is still no consensus on the most effective way to improve participation. The aim of this systematic review is to determine the effectiveness of therapeutic interventions on participation outcomes of children with cerebral palsy (CP). METHODS: A systematic review was conducted, searching the databases PubMed, Cochrane Library, Science Direct, Web of Science and Scopus for randomized controlled trials (RCTs), between 2001 and 2023. Studies were eligible for inclusion if they evaluated children with CP undergoing any intervention and using any tool measuring participation as an outcome measure. A meta-analysis of treatment effect was conducted. A sensitivity analysis was conducted to identify the effect on participation when intervention targeted different International Classification of Functioning (ICF) domains. RESULTS: A total of 1572 records were identified. Eight RCTs including 384 children (195 in the intervention group and 189 in the control group) were included in the systematic review and in the meta-analysis. A sensitivity analysis showed that interventions focusing on participation significantly improved participation; standardized mean difference (1.83; 95% CI: 1.33-2.32; Z = 7.21; P < 0.00001). When other types of interventions, that is, focusing on body functions and structures or activities, were used, then participation was not favourably affected. INTERPRETATION: Interventions primarily targeting barriers to participation across several ICF domains have a greater influence on enhancing participation. Interventions aimed at enhancing specific motor skills, including gross and fine motor function or strength, do not necessarily have a positive impact on participation.

Parkinson's Disease Inequities in Daily Cognitive Activities: An Intersectional Approach.

Objective: Intersectionality approaches to examining differences in Parkinson's disease (PD) based on racialized group, gender identity, and socioeconomic status (SES) are not well covered in the literature. Additionally, the differences in daily cognitive activities for persons diagnosed with PD by racialized group, gender, and SES are undetermined. This study was conducted to explore the differences in PD daily cognitive activities for diverse racialized groups by gender and SES. Methods: This study was a secondary analysis of the Michael J. Fox Foundation's Fox Insight online clinical dataset. Persons with PD were partitioned into 16 racialized by gender groups (Black women, Indigenous men, Latina/x women, Asian men, etc.) that were used in within-group comparisons of low-, middle-, and high-SES-a new variable comprising education and income. Results: Intersectional analyses revealed most items differed between low-SES and high-SES except for items associated with Black and Indigenous men, for whom significant differential item functioning was found between mid-SES and high-SES. Conclusions: These findings revealed that within-group differences exist and may be missed in research in which social factors are adjusted for instead of included in the model.

Improving Lower Limb Function and Frailty in Frail Older Patients with Acute Myocardial Infarction After Percutaneous Coronary Intervention: A Randomized Controlled Study of Neuromuscular Electrical Stimulation.

Background: A global public health problem, frailty is closely associated with poor prognosis after percutaneous coronary intervention (PCI) in older patients with acute myocardial infarction (AMI). Although exercise intervention is the most commonly used method to reverse and alleviate frailty, its application is restricted in patients with acute myocardial infarction following PCI due to cardiovascular instability and autonomic imbalance. Consequently, there is a need for a new practical intervention to address frailty syndrome in these patients. Purpose: This study aimed to investigate the effect of neuromuscular electrical stimulation in frail older AMI patients post-PCI. Patients and Methods: A single-blind, randomized controlled trial was carried out in the Department of Cardiovascular Medicine from March to October 2023. A total of 100 eligible participants were randomly divided into two groups: experimental (n = 50) and control (n = 50) groups, respectively. Both groups received usual care. The experimental group underwent neuromuscular electrical stimulation (NMES) on bilateral quadriceps and gastrocnemius muscles for 30 minutes daily from day 1 to day 7 after surgery. The primary outcomes measured included the frailty score, lower limb muscle strength, and lower limb muscle quality. Secondary outcomes included the activities of daily living score, inflammatory markers, and length of hospital stay. All participants were included in an intention-to-treat analysis after the study ended. Results: The frailty scores of the two groups exhibited a gradual decrease over time, and the scores of the experimental group were lower than those of the control group at 4 and 7 days after surgery (P<0.001). Concurrently, the lower limb muscle strength showed an increasing trend over the time in the experimental group and a decreasing trend in the control group, and the scores of the experimental group surpassed those of the control group (p<0.001). Moreover, a statistical difference was observed in the lower limb muscle mass across the groups after 7 days postoperatively compared with baseline on both sides (p<0.05). Conclusion: Neuromuscular electrical stimulation has the potential to enhance lower limb function and alleviate frailty in elderly patients with acute myocardial infarction after PCI. These findings introduce a novel intervention approach for frailty management in the elderly population.

A Robust Deep Feature Extraction Method for Human Activity Recognition Using a Wavelet Based Spectral Visualisation Technique.

Human Activity Recognition (HAR), alongside Ambient Assisted Living (AAL), are integral components of smart homes, sports, surveillance, and investigation activities. To recognize daily activities, researchers are focusing on lightweight, cost-effective, wearable sensor-based technologies as traditional vision-based technologies lack elderly privacy, a fundamental right of every human. However, it is challenging to extract potential features from 1D multi-sensor data. Thus, this research focuses on extracting distinguishable patterns and deep features from spectral images by time-frequency-domain analysis of 1D multi-sensor data. Wearable sensor data, particularly accelerator and gyroscope data, act as input signals of different daily activities, and provide potential information using time-frequency analysis. This potential time series information is mapped into spectral images through a process called use of 'scalograms', derived from the continuous wavelet transform. The deep activity features are extracted from the activity image using deep learning models such as CNN, MobileNetV3, ResNet, and GoogleNet and subsequently classified using a conventional classifier. To validate the proposed model, SisFall and PAMAP2 benchmark datasets are used. Based on the experimental results, this proposed model shows the optimal performance for activity recognition obtaining an accuracy of 98.4% for SisFall and 98.1% for PAMAP2, using Morlet as the mother wavelet with ResNet-101 and a softmax classifier, and outperforms state-of-the-art algorithms.

Factor structure of FUNDES-Child-SE measuring the participation and independence of children with disabilities.

BACKGROUND: FUNDES-Child-SE is a proxy rating questionnaire for measuring participation and independence in children with disabilities in a Swedish context. It includes the components of frequency of attendance, engagement and independence. The original, Taiwanese FUNDES-Child 7.0, has previously been found to have a four-factor structure for frequency of participation and a two-factor structure for independence. The aim of this study was to test the factor structure in FUNDES-Child-SE. The factor structure is an important part of construct validity. METHODS: Caregivers of 163 children with disabilities aged 6-18 years participated in this cross-sectional study. Exploratory factor analysis was used to find the factor structure for Engagement. Confirmatory factor analysis was used to test the factor structure for all three components. RESULTS: The proposed factor structure for frequency of participation (daily living participation frequency, mobility participation frequency, learning participation frequency and community participation frequency) and independence (daily living independence and social participation independence) fit with data from FUNDES-Child-SE after excluding three to five items and adding two to five covariances of residuals. In the engagement component, two factors, named engagement in informal activities and engagement in formal activities, were found. After excluding one item and adding 10 covariances of residuals, the factor structure had an acceptable fit to data. CONCLUSIONS: Differences in components' factor structure indicate that attendance and engagement are separate aspects of participation. Before using numeric scores from FUNDES-Child-SE in clinical settings, responsiveness and interpretability should be evaluated.

Social and physical environment effects on toileting disability among older adults in India.

BACKGROUND: To examine the prevalence of toileting disability among older adults in India and its association with broad aspects of the physical and social environment. METHODS: We use data from the inaugural wave of the Longitudinal Ageing Study in India and focus on adults aged 65 and older (N = 20,789). We draw on the disablement process model and existing frameworks to identify environmental factors and other risk factors that may be associated with toileting disability. Hierarchical logistic regressions are implemented to analyze the health impacts from physical and social environment characteristics. RESULTS: One in five older Indian adults had difficulties with toileting, and the prevalence rate of this functional disability varied across sub-national regions. We find that low neighborhood trust was associated with an increased likelihood of toileting disability, as was the use of assistive mobility devices. The negative effects of these social and external environment characteristics hold when we stratified the sample by rural and urban residency. Also, older adults in urban areas without access to toilets and using shared latrines had higher odds of being disabled in terms of toileting. Other factors important in explaining toileting disability among older adults included poor self-rated health, arthritis, currently working, living in the East or West region, and having functional limitations. CONCLUSIONS: Poor person-environment fit can compromise older adults' ability to perform self-care tasks. Policymakers need to look beyond the physical environment (e.g., dedicating resources to construct toilet facilities) to adopt a more holistic, multi-faceted approach in their sanitation policies. Improving the safety of neighborhood surroundings in which shared latrines are located and the availability of accessible toilets that cater to those with mobility impairments can help improve independence in toileting among older adults.

Amyloid and Tau Prediction of Cognitive and Functional Decline in Unimpaired Older Individuals: Longitudinal Data from the A4 and LEARN Studies.

BACKGROUND: Converging evidence suggests that markers of Alzheimer's disease (AD) pathology in cognitively unimpaired older individuals are associated with high risk of cognitive decline and progression to functional impairment. The Anti-Amyloid Treatment in Asymptomatic Alzheimer's disease (A4) and Longitudinal Evaluation of Amyloid and Neurodegeneration Risk (LEARN) Studies enrolled a large cohort of cognitively normal older individuals across a range of baseline amyloid PET levels. Recent advances in AD blood-based biomarkers further enable the comparison of baseline markers in the prediction of longitudinal clinical outcomes. OBJECTIVES: We sought to evaluate whether biomarker indicators of higher levels of AD pathology at baseline predicted greater cognitive and functional decline, and to compare the relative predictive power of amyloid PET imaging, tau PET imaging, and a plasma P-tau217 assay. DESIGN: All participants underwent baseline amyloid PET scan, plasma P-tau217; longitudinal cognitive testing with the Primary Alzheimer Cognitive Composite (PACC) every 6 months; and annual functional assessments with the clinical dementia rating (CDR), cognitive functional index (CFI), and activities of daily living (ADL) scales. Baseline tau PET scans were obtained in a subset of participants. Participants with elevated amyloid (Aß+) on screening PET who met inclusion/exclusion criteria were randomized to receive placebo or solanezumab in a double-blind phase of the A4 Study over 240+ weeks. Participants who did not have elevated amyloid (Aß-) but were otherwise eligible for the A4 Study were referred to the companion observational LEARN Study with the same outcome assessments over 240+ weeks. SETTING: The A4 and LEARN Studies were conducted at 67 clinical trial sites in the United States, Canada, Japan and Australia. PARTICIPANTS: Older participants (ages 65-85) who were cognitively unimpaired at baseline (CDR-GS=0, MMSE 25-30 with educational adjustment, and Logical Memory scores within the normal range LMIIa 6-18) were eligible to continue in screening. Aß+ participants were randomized to either placebo (n=583) or solanezumab (n=564) in the A4 Study. A subset of Aß+ underwent tau PET imaging in A4 (n=350). Aß- were enrolled into the LEARN Study (n=553). MEASUREMENTS: Baseline 18-F Florbetapir amyloid PET, 18-F Flortaucipir tau PET in a subset and plasma P-tau217 with an electrochemiluminescence (ECL) immunoassay were evaluated as predictors of cognitive (PACC), and functional (CDR, CFI and ADL) change. Models were evaluated to explore the impact of baseline tertiles of amyloid PET and tertiles of plasma P-tau217 on cognitive and functional outcomes in the A4 Study compared to LEARN. Multivariable models were used to evaluate the unique and common variance explained in longitudinal outcomes based on baseline predictors, including effects for age, gender, education, race/ethnic group, APOEε4 carrier status, baseline PACC performance and treatment assignment in A4 participants (solanezumab vs placebo). RESULTS: Higher baseline amyloid PET CL and P-tau217 levels were associated with faster rates of PACC decline, and increased likelihood of progression to functional impairment (CDR 0.5 or higher on two consecutive measurements), both across LEARN Aß- and A4 Aß+ (solanezumab and placebo arms). In analyses considering all baseline predictor variables, P-tau217 was the strongest predictor of PACC decline. Among participants in the highest tertiles of amyloid PET or P-tau217, >50% progressed to CDR 0.5 or greater. In the tau PET substudy, neocortical tau was the strongest predictor of PACC decline, but plasma P-tau217 contributed additional independent predictive variance in commonality variance models. CONCLUSIONS: In a large cohort of cognitively unimpaired individuals enrolled in a Phase 3 clinical trial and companion observational study, these findings confirm that higher baseline levels of amyloid and tau markers are associated with increased rates of cognitive decline and progression to functional impairment. Interestingly, plasma P-tau217 was the best predictor of decline in the overall sample, superior to baseline amyloid PET. Neocortical tau was the strongest predictor of cognitive decline in the subgroup with tau PET, suggesting that tau deposition is most closely linked to clinical decline. These findings indicate that biomarkers of AD pathology are useful to predict decline in an older asymptomatic population and may prove valuable in the selection of individuals for disease-modifying treatments.

Longitudinal Evolution of Financial Capacity and Cerebral Tau and Amyloid Burden in Older Adults with Normal Cognition or Mild Cognitive Impairment.

BACKGROUND: Declining ability to independently perform instrumental activities of daily living (IADL) is a hallmark of early-stage Alzheimer's disease (AD). Financial capacity, an aspect of IADL, includes financial skills such as balancing a checkbook and making change and is potentially sensitive to early decline in cognitive abilities, raising the question of how financial capacity is affected by buildup of cerebral tau and amyloid-hallmarks of AD pathology. OBJECTIVES: This study aimed to examine the relationship between cerebral tau, amyloid, and their interaction with change in financial capacity over time. DESIGN: Participants were selected from the Alzheimer's Disease Neuroimaging Initiative (ADNI) to have at least one yearly follow-up Financial Capacity Instrument-Short Form (FCI-SF) exam and a flortaucipir (tau) PET scan within 6 months of baseline (and in a subset, a florbetapir (amyloid) PET scan within a year of baseline). SETTING: Multi-center international cohort study. PARTICIPANTS: Sample size was 507-322 cognitively normal (CN) and 185 with amnestic mild cognitive impairment (MCI). Sixty-two percent (N=316) had amyloid data. MEASUREMENTS: Linear mixed-effects models predicted FCI-SF total score from baseline tau, age, gender, premorbid intelligence, executive function, memory, and the interaction of each with time. Regions of interest included inferior temporal, entorhinal cortex, precuneus, posterior cingulate, supramarginal, and dorsolateral prefrontal (DLPF). Additional models examined amyloid and its interaction with tau. Results were adjusted for multiple comparisons. RESULTS: Among the whole sample and in CN participants alone, higher baseline tau in all regions, most prominently in the inferior temporal, entorhinal cortex, and supramarginal regions, was significantly associated with worse performance on the FCI-SF over time. Among MCI participants alone, this relationship was significant in the entorhinal cortex (unstandardized b = 0.27, t = 3.71, adjusted p = 0.001), inferior temporal (b = 0.27, t = 3.96, p < 0.001), precuneus (b = 0.27, t = 3.04, p = 0.01), and supramarginal (b = 0.27, t = 2.74, p = 0.02) regions. Amyloid alone was significantly associated with worse FCI-SF performance in only the whole sample (b = 0.15, t = 2.37, p = 0.04), and a three-way interaction between tau, amyloid, and time was only present for entorhinal cortex tau in CN individuals (b = -1.61, t = -2.61, p = 0.03). CONCLUSIONS: Early tau accumulation is linked to worsening financial capacity over time in CN older adults and MCI. Declining financial capacity may signal pathological buildup and serve as an early warning sign for AD, and future research should continue to investigate the longitudinal relationship between tau, financial capacity, and other IADL.

Association between Comorbidity Indices and Functional Autonomy in Individuals with Cognitive Impairment: A Systematic Review.

This systematic review aimed to examine whether higher comorbidity burden, as assessed by comorbidity indices, was associated with a functional autonomy decline in individuals with cognitive impairment. The search was conducted in the following databases: PubMed/MEDLINE, ScienceDirect, Cochrane, and Embase. Both cross-sectional and longitudinal studies that examined the relationship between comorbidity indices and scales measuring activities of daily living (ADL) in individuals with cognitive impairment were included. The quality assessment tool for observational cohort and cross-sectional studies of the National Institutes of Health (NIH) was used. Overall, 12 studies were included, among which three were longitudinal. Significant association was frequently reported by cross-sectional designs (n=7 studies) and only one study reported a significant longitudinal association. This longitudinal study repeatedly assessed both comorbidity burden and functional autonomy, and considered comorbidity burden as a time-varying covariate. Considering comorbidity burden as a time varying covariate may deal with the dynamic nature of comorbidity burden over time, and conducting repeated assessments during the follow-up using both comorbidity index and ADL scales may increase their sensitivity to reliably measure comorbidity burden and functional autonomy decline over time. In conclusion, a higher comorbidity index was associated with a lower level of functional autonomy in people with cognitive impairment. This relationship seems to be dynamic over time and using comorbidity indices and ADL scales only once may not deal with the fluctuation of both comorbidity burden and functional autonomy decline. To cope with complexity of this relationship this review highlights some methodological approaches to be considered.

The influence of nationwide COVID-19 lockdown on the functional impairment and long-term survival of dependent people for carrying out basic activities of daily living in a neighborhood of the city of Madrid, Spain: Orcasitas Cohort Longitudinal Study.

Background: Prolonged confinement can lead to personal deterioration at various levels. We studied this phenomenon during the nationwide COVID-19 lockdown in a functionally dependent population of the Orcasitas neighborhood of Madrid, Spain, by measuring their ability to perform basic activities of daily living and their mortality rate. Methods: A total of 127 patients were included in the Orcasitas cohort. Of this cohort, 78.7% were female, 21.3% were male, and their mean age was 86 years. All participants had a Barthel index of ≤ 60. Changes from pre- to post-confinement and 3 years afterward were analyzed, and the effect of these changes on survival was assessed (2020-2023). Results: The post-confinement functional assessment showed significant improvement in independence over pre-confinement for both the Barthel score (t = -5.823; p < 0.001) and the classification level (z = -2.988; p < 0.003). This improvement progressively disappeared in the following 3 years, and 40.9% of the patients in this cohort died during this period. These outcomes were associated with the Barthel index (z = -3.646; p < 0.001) and the level of dependence (hazard ratio 2.227; CI 1.514-3.276). Higher mortality was observed among men (HR 1.745; CI 1.045-2.915) and those with severe dependence (HR 2.169; CI 1.469-3.201). Setting the cutoff point of the Barthel index at 40 provided the best detection of the risk of death associated with dependence. Conclusions: Home confinement and the risk of death due to the COVID-19 pandemic awakened a form of resilience in the face of adversity among the population of functionally dependent adults. The Barthel index is a good predictor of medium- and long-term mortality and is a useful method for detecting populations at risk in health planning. A cutoff score of 40 is useful for this purpose. To a certain extent, the non-institutionalized dependent population is an invisible population. Future studies should analyze the causes of the high mortality observed.

What factors preventing the older adults in China from living longer: a machine learning study.

BACKGROUND: The fact that most older people do not live long means that they do not have more time to pursue self-actualization and contribute value to society. Although there are many studies on the longevity of the elderly, the limitations of traditional statistics lack the good ability to study together the important influencing factors and build a simple and effective prediction model. METHODS: Based on the the data of Chinese Longitudinal Healthy Longevity Survey (CLHLS), 2008-2018 cohort and 2014-2018 cohort were selected and 16 features were filtered and integrated. Five machine learning algorithms, Elastic-Net Regression (ENR), Decision Tree (DT), Random Forest (RF), K-Nearest Neighbor (KNN), and eXtreme Gradient Boosting (XGBoost), were used to develop models and assessed by internal validation with CLHLS 2008-2018 cohort and temporal validation with CLHLS 2014-2018 cohort. Besides, the best performing model was explained and according to the variable importance results, simpler models would be developed. RESULTS: The results showed that the model developed by XGBoost algorithm had the best performance with AUC of 0.788 in internal validation and 0.806 in temporal validation. Instrumental activity of daily living (IADL), leisure activity, marital status, sex, activity of daily living (ADL), cognitive function, overall plant-based diet index (PDI) and psychological resilience, 8 features were more important in the model. Finally, with these 8 features simpler models were developed, it was found that the model performance did not decrease in both internal and temporal validation. CONCLUSIONS: The study indicated that the importance of these 8 factors for predicting the death of elderly people in China and built a simple machine learning model with good predictive performance. It can inspire future key research directions to promote longevity of the elderly, as well as in practical life to make the elderly healthy longevity, or timely end-of-life care for the elderly, and can use predictive model to aid decision-making.

Examination of reliability and validity of the Self-Assessment Burden Scale-Motor for community-dwelling older adults in Japan: a validation study.

Background: The aging society in Japan is progressing rapidly compared with that in the United States and European countries. Aging limits activities of daily living (ADL) in older adults, declining their lives and functions at home. Therefore, improving their ADL to effectively support their functioning at home for as long as possible is vital. Consequently, supporters need to have a common understanding, be promptly aware of the decline in ADL, and quickly introduce rehabilitation. The Functional Independence Measure (FIM) and Barthel Index (BI) are the main scales used to quantitatively assess ADL. However, previous studies have reported that FIM requires specialized knowledge for evaluation, and BI does not appropriately capture changes in ADL. The Self-Assessment Burden Scale-Motor (SAB-M) was developed as a scale for family caregivers to appropriately assess changes in ADL in older adults. Previous studies using the SAB-M have confirmed its reliability and validity in hospitalized patients as assessed by their family caregivers. Therefore, this study aimed to investigate the reliability and validity of the SAB-M among community-dwelling older adults as assessed by their family caregivers. Methods: This study included community-dwelling older adults who received home-visit rehabilitation at the first author's facility between October 2020 and December 2020 in Japan. Following previous studies, the SAB-M was used by family caregivers to assess 20 older adults twice for intra-rater reliability. Furthermore, 168 older adults were evaluated by family caregivers for internal consistency using the SAB-M. For criterion validity, the SAB-M was used for the assessment by family caregivers, and therapists used the FIM-Motor (FIM-M). This study used the weighted kappa, Cronbach's alpha, and Spearman's rank correlation coefficients for the statistical analysis of intra-rater reliability, internal consistency, and criterion validity, respectively. Results: The weighted kappa coefficient for the total score was 0.98 (p < 0.01) and individual item, it was 0.93 for feeding (p < 0.01), 0.91 for bathing (p < 0.01), 0.98 for dressing (p < 0.01), 0.94 for transfer (p < 0.01), 0.94 for walking/wheelchair (p < 0.01), 0.95 for stairs (p < 0.01), and 0.96 for bladder management (p < 0.01). The Cronbach's alpha was 0.93 for the seven items. The Spearman's rank correlation coefficient between the SAB-M and FIM-M scores was 0.91 (p < 0.01). Conclusion: The SAB-M has sufficient reliability and validity among community-dwelling older adults. Family caregivers can routinely assess changes in the ADL of community-dwelling older adults using the SAB-M, enabling them to promptly consider introducing rehabilitation when older adults' ADL declines. Therefore, implementing SAB-M helps older adults live and function at home for as long as possible.

Interactions between patterns of multimorbidity and functional status among hospitalized older patients: a novel approach using cluster analysis and association rule mining.

BACKGROUND: Multimorbidity (MM) is generally defined as the presence of 2 or more chronic diseases in the same patient and seems to be frequently associated with frailty and poor quality of life. However, the complex interplay between MM and functional status in hospitalized older patients has not been fully elucidated so far. Here, we implemented a 2-step approach, combining cluster analysis and association rule mining to explore how patterns of MM and disease associations change as a function of disability. METHODS: This retrospective cohort study included 3366 hospitalized older patients discharged from acute care units of Ancona and Cosenza sites of Italian National Institute on Aging (INRCA-IRCCS) between 2011 and 2017. Cluster analysis and association rule mining (ARM) were used to explore patterns of MM and disease associations in the whole population and after stratifying by dependency in activities of daily living (ADL) at discharge. Sensitivity analyses in men and women were conducted to test for robustness of study findings. RESULTS: Out of 3366 included patients, 78% were multimorbid. According to functional status, 22.2% of patients had no disability in ADL (functionally independent group), 22.7% had 1 ADL dependency (mildly dependent group), and 57.4% 2 or more ADL impaired (moderately-severely dependent group). Two main MM clusters were identified in the whole general population and in single ADL groups. ARM revealed interesting within-cluster disease associations, characterized by high lift and confidence. Specifically, in the functionally independent group, the most significant ones involved atrial fibrillation (AF)-anemia and chronic kidney disease (CKD) (lift = 2.32), followed by coronary artery disease (CAD)-AF and heart failure (HF) (lift = 2.29); in patients with moderate-severe ADL disability, the most significant ARM involved CAD-HF and AF (lift = 1.97), thyroid dysfunction and AF (lift = 1.75), cerebrovascular disease (CVD)-CAD and AF (lift = 1.55), and hypertension-anemia and CKD (lift = 1.43). CONCLUSIONS: Hospitalized older patients have high rates of MM and functional impairment. Combining cluster analysis to ARM may assist physicians in discovering unexpected disease associations in patients with different ADL status. This could be relevant in the view of individuating personalized diagnostic and therapeutic approaches, according to the modern principles of precision medicine.

Social relationships and their association with the functional capacity of older Chilean adults: longitudinal evidence.

BACKGROUND: Functional capacity is recognized as a central factor for health in old age and not all studies that seek to clarify the role of social relationships in functional capacity are conclusive. The subject has only been studied in a limited way in Latin America, a region that is aging prematurely, with evidence primarily from developed countries, which have experienced a more gradual aging of their population. This longitudinal study aimed to determine how aspects of social relationships impact the functionality of older Chileans. METHODOLOGY: We conducted a cohort study of 2,265 people aged 60 years or older who lived in the community and resided in Greater Santiago, Chile. Five aspects of social relationships were considered at baseline (participation in groups, clubs, or organizations; number of people in the household; participation in recreational activities; perception of material support, help or advice, and marital status), from which a cluster analysis by conglomerate was performed and used as the exposure of interest. Functional limitation (FL) was the dependent variable, classified as a limitation in at least 1 basic activity of daily living or 1 instrumental activity or 2 advanced activities. The control variables considered were: sex, age, educational level, multimorbidity, depression and years of follow-up. Survival analyses using a Cox proportional hazard regression and multilevel logistic regressions (person level and follow-up wave level) were performed. RESULTS: The identified clusters were four: "without social participation and does not live alone"; "without a partner and without social participation"; "no perception of support and no social participation"; "with participation, partner and perception of support". Social relationship clusters predicted FL incidence and FL reporting during follow-up. Being in the clusters "without social participation and does not live alone" and "without partner and without social participation" were risk factors for incident FL and report of FL during follow-up, compared to being in the reference cluster "with participation, partner and perception of support. CONCLUSIONS: In summary, our study showed that participating in social organizations, not living alone and having a partner are protective factors for presenting and developing functional limitation in old age for community-living Chileans in an urban area.

Loneliness and its correlation with self-care and activities of daily living among older adults: a partial least squares model.

BACKGROUND: The growing elderly population worldwide is accompanied by an increased disrupting daily activities and self-care. Neglecting the multifaceted needs of the elderly can lead to detrimental effects such as loneliness or social isolation, threatening healthy aging. Self-care is a key strategy to enhance daily functioning and mitigate feelings of loneliness among the elderly. This study was conducted with the aim of investigating the feelings of loneliness and its relationship with self-care and Activities of Daily Living (ADL) among the older adults of Tabriz city. METHODS: In this observational cross-sectional study, we engaged 315 older adults using a simple random sampling. Participants were selected randomly from Iran's Integrated Health System (IIHS) framework. Three questionnaires including de Jong Gierveld Loneliness Scale, Persian version of self-care scale, and ADL-Katz were used for data collection. The Partial Least Squares and Spearman's correlation were used to investigate the relationships between demographic characteristics, loneliness, self-care, and ADL. RESULTS: The sample comprised 315 respondents 51.1% were female, 49.5% had a middle school literacy and 86% were married. A significant negative relationship was observed between loneliness and self-care (P < 0.001 and r =-0.311). Demographic characteristics, including age and marital status, were found to negatively moderate the relationship between self-care (path coefficient - 0.07, P = 0.044) and positively moderate the relationship with loneliness (path coefficient 0.29, p < 0.001). ADL was positively associated with self-care (path coefficient 0.41, p = 0.046) and also a direct and significant relationship was observed between ADL and daily self-care (P < 0.001 and r = 0.335). CONCLUSION: This study underscores the complex interplay between loneliness, self-care, and ADL. It highlights the need for interventions that address emotional health and daily living skills as part of comprehensive self-care strategies. Further research is needed to explore these relationships in more detail and to develop targeted interventions for different demographic groups.

Daily activities of older adults before and during the COVID pandemic.

OBJECTIVES: This study examines how older adults' (65 years old plus) daily activities shifted in the years around the coronavirus disease (COVID) pandemic. METHODS: Using data from American Time Use Survey, this study compares activities across the pre-pandemic (2019 to March 2020), early-pandemic (May to December 2020), and pandemic-normal (2021) periods. RESULTS: In the first year of the pandemic, there was less time spent on average on leisure outside the home, traveling, and with nonhousehold members, and more time alone and at home, compared with before the pandemic. Moving beyond averages, sequence and cluster analyses find 5 similar typologies of days across the three periods, characterized by days predominated by (a) housework, (b) leisure at home, (c) TV, (d) a combination of leisure at home and outside with TV, and (e) paid work. Duration of time across various daily activities differed, however, even for the same clusters. For example, in days predominated by indoor leisure, adults spent 405 min in this activity before the pandemic, 432 min during the early-pandemic period, and 549 min during the pandemic-normal period. We also observed changes in the proportion of older adults in each cluster. Across the pre-pandemic and early-pandemic periods, the proportion of days predominated by leisure at home increased (9.9%-17.9%) whereas the proportion belonging to days predominated by housework decreased (45.7%-17.6%). DISCUSSION: COVID-19 shifted the daily life of older adults, and our findings are consistent with selection, optimization, and compensation theory, documenting that older adult adapted across the first 2 years of the pandemic.