A visual art intervention program for older people with stroke in residential care settings: A feasibility study.

INTRODUCTION: Stroke poses challenges to the physiological, psychosocial and spiritual well-being of affected individuals. As the impacts of stroke might not be reversible, a shift in focus to providing care is desirable. Visual art interventions using visual and symbolic art can help participants to express their feelings, give them a sense of choice and the feeling that they are retaining a sense of control, promote insights, restructure their sense of cognition and instil hope. There have been few studies on visual art interventions involving older people with stroke and none in residential care homes (RCHs). Theoretical support and rigorous research designs on the subject are lacking. Thus, this study seeks to address this research gap by examining the feasibility of a visual art intervention for older people in RCHs and exploring the impacts on their holistic well-being. METHODS: This was a single-blinded, two-arm, randomised controlled feasibility study grounded on Watson's Caring Theory. The Holistic Well-Being Scale and Caring Factor Survey were used in the study, with three assessment time-points: before the intervention (T1), at the mid-point of the intervention (T2) and immediately after the intervention (T3). RESULTS: Sixty-one older people with stroke were recruited from 14 RCHs and randomised into the intervention and control groups. The recruitment rate was 44.53%, and the retention rate for the intervention group was 93.55%. Implementing the programme was affordable (at approximately US$126/head), the duration was acceptable (721 min) and the feedback from participants and staff of the RCHs was positive. CONCLUSIONS: The visual art intervention programme proved to be clinically feasible. This study adds new insights to the development of visual art interventions and to the caring sciences. The efficacy of the programme on holistic well-being has yet to be confirmed.

E-bibliotherapy for improving the psychological well-being of informal caregivers of people with dementia: a randomized controlled trial protocol.

BACKGROUND: Providing informal care for individuals with dementia is frequently a challenging and demanding experience that can have detrimental effects on the psychological well-being of caregivers. Regrettably, community-based caregiver services often prove inadequate, highlighting the necessity for innovative approaches to support caregivers. AIM: To test the efficacy of e-bibliotherapy in improving the psychological well-being of informal caregivers of people with dementia. METHOD: The study is divided into two phases. In phase 1, the research team will co-design the e-bibliotherapy app with caregivers. In phase 2, a randomized controlled trial will be conducted among 192 informal caregivers of people with dementia in Hong Kong. Caregivers will be randomly assigned to either the e-bibliotherapy group or the control group using simple randomization. Outcome measures will encompass caregivers' psychological well-being, caregiving appraisal, mental health, saliva cortisol levels as an indicator of stress, and health-related quality of life for caregivers. Data will be collected at baseline, immediately post intervention, and 3 months and 6 months post intervention. General linear mixed model will be employed to analyze intervention effects. Qualitative interviews will be undertaken to explore caregiver experiences within this study and evaluate intervention acceptability using conventional content analysis methods. DISCUSSION: This study represents a pioneering effort in utilizing e-bibliotherapy to enhance the psychological well-being of informal caregivers of individuals with dementia, addressing the existing gap in caregiver services and facilitating knowledge dissemination within the community. TRIAL REGISTRATION: The trial has been registered on ClinicalTrial.gov (Ref: NCT05927805).

The Effects of Immersive Virtual Reality Applications on Enhancing the Learning Outcomes of Undergraduate Health Care Students: Systematic Review With Meta-synthesis.

BACKGROUND: Immersive virtual reality (IVR) applications are gaining popularity in health care education. They provide an uninterrupted, scaled environment capable of simulating the full magnitude of sensory stimuli present in busy health care settings and increase students' competence and confidence by providing them with accessible and repeatable learning opportunities in a fail-safe environment. OBJECTIVE: This systematic review aimed to evaluate the effects of IVR teaching on the learning outcomes and experiences of undergraduate health care students compared with other teaching methods. METHODS: MEDLINE, Embase, PubMed, and Scopus were searched (last search on May 2022) for randomized controlled trials (RCTs) or quasi-experimental studies published in English between January 2000 and March 2022. The inclusion criteria were studies involving undergraduate students majoring in health care, IVR teaching, and evaluations of students' learning outcomes and experiences. The methodological validity of the studies was examined using the Joanna Briggs Institute standard critical appraisal instruments for RCTs or quasi-experimental studies. The findings were synthesized without a meta-analysis using vote counting as the synthesis metric. A binomial test with P<.05 was used to test for statistical significance using SPSS (version 28; IBM Corp). The overall quality of evidence was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation tool. RESULTS: A total of 17 articles from 16 studies totaling 1787 participants conducted between 2007 and 2021 were included. The undergraduate students in the studies majored in medicine, nursing, rehabilitation, pharmacy, biomedicine, radiography, audiology, or stomatology. The IVR teaching domains included procedural training (13/16, 81%), anatomical knowledge (2/16, 12%), and orientation to the operating room setting (1/16, 6%). The quality of the 75% (12/16) of RCT studies was poor, with unclear descriptions of randomization, allocation concealment, and outcome assessor blinding procedures. The overall risk of bias was relatively low in the 25% (4/16) of quasi-experimental studies. A vote count showed that 60% (9/15; 95% CI 16.3%-67.7%; P=.61) of the studies identified similar learning outcomes between IVR teaching and other teaching approaches regardless of teaching domains. The vote count showed that 62% (8/13) of the studies favored using IVR as a teaching medium. The results of the binomial test (95% CI 34.9%-90%; P=.59) did not show a statistically significant difference. Low-level evidence was identified based on the Grading of Recommendations Assessment, Development, and Evaluation tool. CONCLUSIONS: This review found that undergraduate students had positive learning outcomes and experiences after engaging with IVR teaching, although the effects may be similar to those of other forms of virtual reality or conventional teaching methods. Given the identification of risk of bias and low level of the overall evidence, more studies with a larger sample size and robust study design are required to evaluate the effects of IVR teaching. TRIAL REGISTRATION: International prospective register of systematic reviews (PROSPERO) CRD42022313706; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=313706.

Sensory-based interventions for the immediate de-escalation of agitation in people with dementia: A systematic review.

Objectives: Sensory-based interventions are commonly used to reduce the occurrence of agitation in people with dementia over extended periods. However, the evidence regarding their immediate de-escalation effects is unclear. The objectives of this systematic review are to (a) identify which sensory-based interventions have been used for de-escalating agitation and (b) examine the immediate effects of these interventions on de-escalating agitation in people with dementia.Methods: A systematic review was performed in accordance with PRISMA guidelines. Data sources were identified by searching Embase, Medline, PsycINFO, and CINAHL for publications up to 2 March 2022. The de-escalating agitation effect had to be measured during the intervention or within 15 min after commencing the treatment. Only randomized controlled trials or quasi-experimental studies published in English were included.Results: Nine studies met the inclusion criteria: two randomized controlled trials, one cross-over study, and six quasi-experimental studies. All were conducted in Western countries, involving a total of 246 participants. Music-related interventions were investigated in seven studies, and a positive effect on de-escalating agitation was found, with no side-effects. All of the studies had methodological limitations, including a single group design, blinding, an insufficient sample size, and imprecisely reported results.Conclusion: There is a profound dearth of rigorous studies examining the immediate agitation de-escalating effects of sensory-based interventions on people with dementia. However, the limited evidence on music-related interventions is encouraging. More rigorous research is recommended to confirm the effects.

Vision Transformers (ViT) for Blanket-Penetrating Sleep Posture Recognition Using a Triple Ultra-Wideband (UWB) Radar System.

Sleep posture has a crucial impact on the incidence and severity of obstructive sleep apnea (OSA). Therefore, the surveillance and recognition of sleep postures could facilitate the assessment of OSA. The existing contact-based systems might interfere with sleeping, while camera-based systems introduce privacy concerns. Radar-based systems might overcome these challenges, especially when individuals are covered with blankets. The aim of this research is to develop a nonobstructive multiple ultra-wideband radar sleep posture recognition system based on machine learning models. We evaluated three single-radar configurations (top, side, and head), three dual-radar configurations (top + side, top + head, and side + head), and one tri-radar configuration (top + side + head), in addition to machine learning models, including CNN-based networks (ResNet50, DenseNet121, and EfficientNetV2) and vision transformer-based networks (traditional vision transformer and Swin Transformer V2). Thirty participants (n = 30) were invited to perform four recumbent postures (supine, left side-lying, right side-lying, and prone). Data from eighteen participants were randomly chosen for model training, another six participants' data (n = 6) for model validation, and the remaining six participants' data (n = 6) for model testing. The Swin Transformer with side and head radar configuration achieved the highest prediction accuracy (0.808). Future research may consider the application of the synthetic aperture radar technique.

Mutant Huntingtin Is Cleared from the Brain via Active Mechanisms in Huntington Disease.

Huntington disease (HD) is a neurodegenerative disease caused by a CAG trinucleotide repeat expansion in the huntingtin (HTT) gene. Therapeutics that lower HTT have shown preclinical promise and are being evaluated in clinical trials. However, clinical assessment of brain HTT lowering presents challenges. We have reported that mutant HTT (mHTT) in the CSF of HD patients correlates with clinical measures, including disease burden as well as motor and cognitive performance. We have also shown that lowering HTT in the brains of HD mice results in correlative reduction of mHTT in the CSF, prompting the use of this measure as an exploratory marker of target engagement in clinical trials. In this study, we investigate the mechanisms of mHTT clearance from the brain in adult mice of both sexes to elucidate the significance of therapy-induced CSF mHTT changes. We demonstrate that, although neurodegeneration increases CSF mHTT concentrations, mHTT is also present in the CSF of mice in the absence of neurodegeneration. Importantly, we show that secretion of mHTT from cells in the CNS followed by glymphatic clearance from the extracellular space contributes to mHTT in the CSF. Furthermore, we observe secretion of wild type HTT from healthy control neurons, suggesting that HTT secretion is a normal process occurring in the absence of pathogenesis. Overall, our data support both passive release and active clearance of mHTT into CSF, suggesting that its treatment-induced changes may represent a combination of target engagement and preservation of neurons.SIGNIFICANCE STATEMENT: Changes in CSF mutant huntingtin (mHTT) are being used as an exploratory endpoint in HTT lowering clinical trials for the treatment of Huntington disease (HD). Recently, it was demonstrated that intrathecal administration of a HTT lowering agent leads to dose-dependent reduction of CSF mHTT in HD patients. However, little is known about how HTT, an intracellular protein, reaches the extracellular space and ultimately the CSF. Our findings that HTT enters CSF by both passive release and active secretion followed by glymphatic clearance may have significant implications for interpretation of treatment-induced changes of CSF mHTT in clinical trials for HD.

A 'good dyadic relationship' between older couples with one having mild cognitive impairment: a Q-methodology.

BACKGROUND: Cognitive impairment gradually brings changes to the relationship between older married couples. Therefore, this study aimed to understand the individual viewpoints of couple dyads on the important attributes of a 'good dyadic relationship' in the context of mild cognitive impairment (MCI), and to explore if the congruencies and discrepancies in their perceptions related to the quality and closeness of their relationship and well-being. METHODS: Q-methodology was used to reveal the perceptions of a 'good dyadic relationship' among couples with one having MCI. The participating couples were separated in two rooms and independently ranked 18 relationship attributes from least to most important on a 7-point Q-sort response grid. All participants also completed a post-sort interview and surveys to assess their psychological well-being and closeness. Q-sorts were analyzed using by-person factor analysis. RESULTS: Forty people with MCI and forty spousal partners completed the Q-sort. Three viewpoints, accounting for 48% of the total variance, were identified and were labeled 'Provider,' 'Problem-solver,' and 'Partner.' Different viewpoints of a 'good dyadic relationship' primarily varied by perceived importance of commitment, dedication, tolerance, and personal space. Despite these differences, there was wide consensus that respecting each other and cherishing the current moment are two universally salient attributes of a good relationship across all viewpoints. Couples with discrepant views scored significantly higher on perceptions of the quality of the relationship and closeness with the partner. CONCLUSIONS: This study advances the theoretical understanding of the dyadic relationship between couples with one having MCI, from both perspectives. MCI is a state in which couples can openly discuss their expectations. The findings provide practitioners with insights to work with couples experiencing MCI.

Sarcopenia and its association with objectively measured life-space mobility and moderate-to-vigorous physical activity in the oldest-old amid the COVID-19 pandemic when a physical distancing policy is in force.

INTRODUCTION: The oldest-old are highly vulnerable to sarcopenia. Physical distancing remains a common and effective infection-control policy to minimize the risk of COVID-19 transmission during the pandemic. Sarcopenia is known to be associated with impaired immunity. Moderate-to-vigorous physical activity (MVPA) and life-space mobility (LSM) are potential strategies for minimizing the risk of sarcopenia. However, a physical distancing policy might jeopardize the practice of MVPA and LSM. The purposes of this study were to identify the prevalence of sarcopenia and examine the association between MVPA and LSM with sarcopenia in the community-dwelling oldest-old during the COVID-19 pandemic. METHODS: This study employed a cross-sectional and observational design. The study was conducted in 10 community centres for older people in Hong Kong during the period of the COVID-19 pandemic (September to December 2020). Eligible participants were the oldest-old people aged ≥85 years, who were community-dwelling and had no overt symptoms of cognitive impairment or depression. Key variables included sarcopenia as measured by SARC-F, LSM as measured by a GPS built into smartphones, and MVPA as measured by a wrist-worn ActiGraph GT3X+. Variables were described by mean and frequency. A multiple linear regression was employed to test the hypotheses. The dependent variable was sarcopenia and the independent variables included LSM and MVPA. RESULTS: This study recruited 151 eligible participants. Their mean age was 89.8 years and the majority of them were female (n = 93/151, 61.6%). The prevalence of sarcopenia was 24.5% (n = 37/151) with a margin of error of 6.86%. MVPA was negatively associated with sarcopenia in older people (ß = - 0.002, SE = 0.001, p = 0.029). However, LSM was not associated with sarcopenia. CONCLUSION: The prevalence of sarcopenia in the community-dwelling oldest-old population is high. MVPA is negatively associated with sarcopenia. LSM is unrelated to sarcopenia. Sarcopenia should be recognized and the oldest-old with sarcopenia should be accorded priority treatment during the COVID-19 pandemic.

The effects of involvement in training and volunteering with families of people with dementia on the knowledge and attitudes of volunteers towards dementia.

BACKGROUND: Volunteers have been a valuable resource in supporting people with dementia and their caregivers in the community. However, factors such as misconceptions, negative attitudes towards dementia, and a lack of motivation might impact the quality of volunteer care. The present paper aims to examine the effect of training and service provision on the knowledge and attitudes of volunteers towards dementia and the association between knowledge and attitudes with the levels of motivation to volunteer. METHODS: The present study is part of an effectiveness-implementation cluster randomized clinical hybrid trial using a music-with-movement intervention to promote the well-being of people with dementia and their informal caregivers. Volunteers were recruited to receive training to support the delivery of the intervention. Training and enrichment workshops were offered to volunteers during the one-year project. Before and after their training and service, the recruited volunteers were asked to complete the following assessments: Dementia Attitudes Scale, and the Alzheimer's Disease Knowledge Scale. The levels of motivation to volunteer was measured with Volunteer Functions Inventory at baseline. Wilcoxon signed-rank test and multiple regression test were applied for statistical analyses. RESULTS: A total of 107 volunteers were recruited, and 81 of them completed a mean period of 47.32 weeks of training and service. Significant improvements in their total score on the Alzheimer's Disease Knowledge Scale (p = .009) and Dementia Attitudes Scale (p < .001) were found. Dementia attitude (ß = .57, p < .001) and knowledge (ß = -.18, p = .038) were found to have the most significant association with the levels of motivation to be a volunteer at baseline. CONCLUSIONS: The present study illustrated the importance of quality volunteer training and voluntary service in improving the dementia knowledge and attitudes of volunteers. It also shed light on the association between knowledge and attitudes with the levels of motivation to volunteer. Accordingly, future research and public health policymakers should address more efforts to amplify the advantage of volunteers as a vital asset in dementia care. TRIAL REGISTRATION: NCT03575026 (ClinicalTrials.gov), First registration on 02/07/2018.

Implications of COVID-19 on the Loneliness of Older Adults in Residential Care Homes.

With little understandings on the loneliness of older adults in residential care homes structured by social contact restrictions, the provision of person-centered care was jeopardized during the pandemic. This study employed hermeneutic phenomenology to explore the lived experiences of loneliness of this population during a 5-month period of the COVID-19 pandemic. We conducted unstructured face-to-face interviews with 15 older adults living in seven residential care homes. Thematic analysis was guided by Van Manen's approach. The essence of loneliness was uncovered as "A deprived sense of self-significance in a familiar world contributes to older adult's disconnection with prior commitments." A sub-theme "From collapse to dissolution of self-understanding" revealed how COVID-19 structured their loneliness. Another sub-theme, "Restoring meanings by establishing connections with entities" illustrated the ways to mitigate loneliness during the pandemic. Activities fostering alternative self-interpretation are important to protect older adults against loneliness.

The utilization of a nurse-led clinic by older people with cognitive complaints: Do they follow our advice?

AIM: Cognitive assessment services were found to be beneficial to older people with cognitive complaints but information is limited on adherence to the recommendations provided. This study aimed to identify predictors of clients' adherence to nursing recommendations after attending a community-based nurse-led cognitive assessment service in Hong Kong. METHODS: A cross-sectional design was adopted. We analysed a dataset routinely collected from clients attending the services between January 2012 and January 2018. Multiple regression analyses were conducted to identify predictors (demographics, functional health status and cognitive performance) of the clients' adherence. Their satisfaction with the services was also examined. RESULTS: Two hundred and twenty-three clients attended the clinic. Of the 133 who completed the telephone follow-up at the 6 months postconsultation, 44.1% did not adhere to the recommendations. Clients with a higher Clinical Dementia Rating (OR = 4.17), lower Clock Drawing Test score (OR = 1.13) and lower education level (OR = 0.91) were found to be less likely to adhere to the nursing recommendations. Ninety-six percent (190/198) were satisfied with the overall services. CONCLUSION: Cognitive assessment services in nurse-led clinics could provide a self-referred service for older people with cognitive complaints. However, low adherence to nursing recommendations was found among clients with poorer cognitive functions and lower education levels.

Perceptions of recurrence risk and behavioural changes among first-ever and recurrent stroke survivors: A qualitative analysis.

BACKGROUND: Among stroke survivors, the risk of stroke recurrence is high, and stroke survivors' perception of the risk of recurrence is crucial to promote healthy behaviours. OBJECTIVES: This study aimed to explore the perceptions of stroke survivors about their risk of recurrence and healthy behavioural modifications. DESIGN: A qualitative interview study was carried out. RESULTS: We interviewed 19 stroke survivors from 3 hospitals. Thematic analysis showed that the perceptions of recurrence risk and healthy behavioural changes differed between first-ever and recurrent stroke survivors. Three themes were generated from the data of first-ever stroke survivors: indifference to and unawareness of the risk of stroke recurrence, the need for professional information support and different awareness of the importance of different healthy behaviours. For first-relapse stroke patients: worry but feel powerlessness towards recurrent event, accurate information is still warranted, regret of unhealthy behaviour patterns. For the survivors suffered two or more times recurrences: perceived severity of recurrences, increased psychological care need, incorrect perceptions of healthy behaviour. DISCUSSION AND CONCLUSION: Stroke survivors with or without recurrence hold different perceptions towards the risk of recurrence and behavioural changes. The need for information related to warning signs, recurrence risk and risk factors remained consistently unmet. The benefits of healthy behaviours could be a double-edged sword for the prevention of stroke recurrence if the survivors fail to understand these accurately. It is strongly recommended that a specific recurrence risk communication tool and related health education plan be explored on the basis of the number of times patients have experienced stroke recurrence to inform secondary prevention of stroke in the future. PATIENT/PUBLIC CONTRIBUTION: The patients were involved in the formulation of interview questions and conduct of this study. No public was involved in this study.

Bibliotherapy for improving caregiving appraisal of informal caregivers of people with dementia: A pilot randomized controlled trial.

Caregiving appraisal is a key driver to moderating caregiving outcomes. The caregiving appraisal of informal caregivers of people with dementia requires increased attention. This study aimed to explore the feasibility and acceptability of an evidence-based bibliotherapy protocol, and test the efficacy on improving caregiving appraisal. A two-arm pilot randomized controlled trial was adopted. Sixty informal caregivers were randomized to either the intervention group, receiving eight weekly professional-guided bibliotherapy sessions in addition to usual care; or the usual care group. The professional-guided bibliotherapy sessions were weekly sessions in which caregivers self-read the designated chapter and then received telephone coaching. Caregiving appraisal, coping, psychological well-being, positive aspects of caregiving, knowledge of dementia, and attitude toward dementia were assessed both at baseline and immediately after the intervention. Assessors were blinded to group allocation. Individual interviews among 10 participants from the intervention group were conducted to explorecaregivers' acceptance of the intervention. Descriptive statistics, χ 2 test, Mann-Whitney U test, independent t test, generalized estimating equation, and content analysis were used for data analysis. This study pioneered the use of bibliotherapy among informal caregivers of people with dementia. The participant recruitment rate was 69.8%. The attrition rate of the intervention group was 20%. Bibliotherapy had a significant time-by-group interaction effect on caregiving appraisal (p < 0.001), coping (p = 0.003), positive aspects of caregiving (p = 0.001), knowledge of dementia (p = 0.017), and attitude toward dementia (p < 0.001). The effect on psychological well-being, however, was only significant on the personal growth subscale (p = 0.025). The acceptability was also confirmed. No adverse event was documented.

Factors associated with frailty transition at different follow-up intervals: A scoping review.

Frailty is a dynamic process. Identifying the factors associated with frailty transition may increase the opportunities for success in interventions for frailty. This scoping review, following Arksey and O'Malley's methodological framework, aimed to identify the factors associated with frailty transition and the rate of frailty transition among community-dwelling older people. A literature search was conducted. Among the included studies, 5, 13, and 3 involved follow-up intervals of 2-3 years (short term), 4-6 years (intermediate term), and >6 years (long term), respectively. Reportedly, life course characteristics, diseases, and psychological factors were related to frailty transitions at all follow-up intervals. Physical factors were related to frailty transition at both short and intermediate follow-up intervals, while social factors were related to frailty transition at intermediate follow-up intervals. The rate of improvement in frailty seemed to decrease, and that of worsening seemed to increase when the follow-up intervals lengthened.

Strategies to engage people with dementia and their informal caregivers in dyadic intervention: A scoping review.

Dyadic interventions simultaneously engage both people with dementia (PWD) and their informal caregivers (ICGs). This scoping review study identified the strategies for engaging dyads, described the perceptions of the dyads on these strategies, and reported the attrition rates of the dyadic interventions reported in the literature. Articles published up to July 2020, reporting a PWD-ICG-dyads intervention were searched in PubMed (Medline), PsycInfo, CINAHL, and the SSCI. Backwards citation chasing was conducted. A total of 37 studies were included. Seven engagement strategies were identified, which involved: ensuring a good-quality interventionist; offering take-home supporting materials; establishing peer support among the participants; tailoring the intervention content; conducting the intervention in a convenient location; conducting the intervention in a comfortable physical environment, and using a short and succinct programme. The dyads' subjective experiences of these strategies were reported. The attrition rates of the included studies were ranged 0% - 59.1%.

Relationships Between the Usage of Televisions, Computers, and Mobile Phones and the Quality of Sleep in a Chinese Population: Community-Based Cross-Sectional Study.

BACKGROUND: No study has comprehensively investigated the association between the usage of typical screen-based electronic media devices and sleep quality in a Chinese population with individuals in a wide range of ages. OBJECTIVE: This study aimed to understand the characteristics of television (TV) viewing, computer usage, and mobile phone usage in a representative Chinese population in Macau and to examine their roles in predicting the variations in sleep quality. METHODS: This cross-sectional study was an analysis of 1500 Macau residents aged 15 to 90 years based on a community-based health needs assessment study entitled, "Healthy Living, Longer Lives." Data collection was conducted in 7 districts of Macau from 2017 to 2018 through face-to-face interviews. The durations of daily TV viewing, computer usage, and mobile phone usage were recorded in a self-administered questionnaire. The Chinese version of the Pittsburgh Sleep Quality Index (PSQI) was used to assess the sleep quality. RESULTS: The prevalence of TV, computer, and mobile phone usage was 78.4% (1176/1500), 51.6% (769/1490), and 85.5% (1276/1492), respectively. The average daily hours of usage were 1.75 (1.62), 1.53 (2.26), and 2.85 (2.47) hours, respectively. Females spent more time watching TV (P=.03) and using mobile phones (P=.02) and less time on the computer (P=.04) as compared to males. Older adults were more likely to watch TV while young people spent more time using the computer and mobile phones (P for all trends<.001). The mean PSQI global score was 4.79 (2.80) among the participants. Females exhibited significantly higher PSQI scores than males (5.04 vs 4.49, respectively; P<.001). No linear association was observed between the PSQI score and the amount of time spent on the 3 electronic devices (P=.58 for PSQI-TV, P=.05 for PSQI-computer, and P=.52 for PSQI-mobile phone). Curve estimation showed significant quadratic curvilinear associations in PSQI-TV (P=.003) and PSQI-computer (P<.001) among all the participants and in PSQI-mobile phone among youths (age, 15-24 years; P=.04). After adjustment of the gender, age, body mass index, demographics, and lifestyle factors, more than 3 hours of TV viewing and 4 hours of computer usage or mobile phone usage was associated with 85% (95% CI 1.04-1.87; P=.008), 72% (95% CI 1.01-2.92; P=.045), and 53% (95% CI 1.06-2.22; P=.03) greater odds of having poor sleep quality (PSQI score>5), respectively. CONCLUSIONS: The mobile phone was the most popular screen-based electronic device used in the Macau population, especially among young people. "J" shape associations were observed between sleep quality and the duration of TV viewing, computer usage, and mobile phone usage, indicating that the extreme use of screen-based electronic devices predicted poorer sleep status, whereas moderate use would be acceptable.

Factors Associated With Improving or Worsening the State of Frailty: A Secondary Data Analysis of a 5-Year Longitudinal Study.

PURPOSE: This study aims to examine the frailty transition patterns of older adults recruited from both community and residential care settings within a 5-year period, and to identify the physical and psychosocial factors associated with the transitions. DESIGN: This study is a secondary data analysis of a longitudinal study for tracking the change of health status of older adults 60 years of age or older. Participants who had undergone at least two assessments during 2013-2017 were selected for analysis. Guided by the Gobben's Frailty Model, biopsychosocial predictors were comprehensively identified from the literature, and their relationship to frailty state transition was explored. METHODS: We compared the baseline characteristics of participants at the frail, pre-frail, and robust states (categorized using the Fried Frailty Index). A generalized estimating equation was used to identify factors associated with an improvement or a deterioration in frailty. The probability of transitions between frailty states was calculated. FINDINGS: Among the 306 participants, 19% (n = 59) improved and 30% (n = 92) declined in frailty within the project period. Sleep difficulties (odds ratio [OR] = 1.76; 95% confidence interval [CI]: 1.07-2.90; p = .027), better cognitive status (OR = 0.80-0.84; 95% CI: 0.66-0.98 and 0.73-2.73; p = .031 and .018), good nutritional status (OR = 0.74; 95% CI: 0.59-0.91; p = .005), slow mobility (OR = 1.03-1.13; 95% CI: 1.00-1.05 and 1.03-1.25; p = .047 and .014), hearing impairment (OR = 2.83; 95% CI: 1.00-8.01; p = .05), better quality of health-physical domain (OR = 0.95; 95% CI: 0.92-0.99; p = .006), and better functional ability (OR = 0.85-0.97; 95% CI: 0.79-0.92 and 0.96-0.99; p < .001 and p = .003) were significant associated factors in the worsening group. More physical activity (OR = 1.01; 95% CI: 1.00-1.01 and 1.01-1.02; p = .026 and p < .001), hearing impairment (OR = 0.26; 95% CI: 0.08-0.86; p = .028), and slow mobility (OR = 0.93; 95% CI: 0.87-1.00; p = .037) were significant associated factors in the improvement group. CONCLUSIONS: Frailty is a crucial global public health issue. This study provides evidence for nurses to holistically consider the associated factors and to design effective interventions to combat frailty in our ageing society. CLINICAL RELEVANCE: Frailty is a transient state that can be reversed. Professional nurses working in both community and residential care settings should be able to identify older adults at risk and improve their health conditions appropriately.

A multicomponent integrative intervention to slow down the progression of mild cognitive impairment: A protocol for a randomized controlled trial.

Mild cognitive impairment affects 36% of people aged 65 years and over in China, and around 50% transition from mild cognitive impairment to dementia within 3 years. Early intervention can slow down disease progression and thus delay dementia onset. The purpose of this article is to outline the protocol of an ongoing randomized controlled trial in mainland China that will evaluate the effects and feasibility of a 6-month multicomponent integrative intervention on the speed of progression of mild cognitive impairment to dementia. Ninety-six community-dwelling older adults, aged 65 years and older, will be recruited (recruitment will be completed in May 2020), using strict inclusion/exclusion criteria, from two community health service centers in Guangzhou, Guangdong province. Participants will be allocated to receive either the multicomponent integrative intervention or usual care. The core components of the intervention are cognitive training, dietary instruction, physical activity, and management of vascular risk factors. Data are collected at the beginning of the study, then at 1, 3, and 6 months. The primary outcome is cognitive function. The main secondary outcomes are exercise capacity, comprehensive physical capacity, depression, and quality of life. An intention-to-treat analysis will be conducted. The study will be completed in 2021. The multicomponent integrative intervention detailed in this protocol could be incorporated into dementia prevention programs in community health service centers, or other similar settings, to delay the onset of dementia.

Factors associated with caregiving appraisal of informal caregivers: A systematic review.

AIMS AND OBJECTIVES: To identify factors associated with the caregiving appraisal of informal caregivers. BACKGROUND: Caregiving appraisal, the cognitive evaluation of the caregiving situation, is an essential factor in determining positive or negative caregiving outcomes. Identifying factors associated with appraisal is fundamental for designing effective health promotion strategies. DESIGN: A systematic review. METHODS: PubMed, EMBASE, CINAHL, PsycINFO, Social Sciences Citation Index, Scopus, CNKI and Wanfang Database were searched for papers published from 1984 to December 2018. Keywords related to informal caregivers' caregiving appraisal were used. Cross-sectional and cohort studies were included. The Quality Assessment and Validity Tool for Correlational Studies, and the CASP Cohort Study Checklist were used for quality assessment. Descriptive and narrative synthesis were used to analyse data. Social ecological model was used for classifying the associated factors into different levels. The PRISMA checklist was followed. RESULTS: Forty studies were included. The quality of the studies was moderate to high. Data were organised into three levels (individual, interpersonal and community level) and categorised into modifiable factors (e.g. patient behavioural problems, caregiver self-efficacy and social support) and nonmodifiable factors (e.g. caregiving duration, gender and education). The majority of studies have investigated the factors at the individual level. CONCLUSION: There are inconsistencies in the understanding of caregiving appraisal, and consensus is needed for conceptual clarity. Caregiving appraisal is associated with three levels of factors. These modifiable factors provide evidence for designing evidence-based interventions, and the nonmodifiable factors help identify confounding factors in assessment and appraisal. RELEVANCE TO CLINICAL PRACTICE: Nurses are the best-placed healthcare professionals to support informal caregivers. The three levels of associated factors and the interactive approaches provide direction for informing clinical nursing practice. They also provide evidence for healthcare researchers and policymakers to develop interventions and theoretical perspectives and to better allocate healthcare resources.

A novel humanized mouse model of Huntington disease for preclinical development of therapeutics targeting mutant huntingtin alleles.

Huntington disease (HD) is a neurodegenerative disease caused by a mutation in the huntingtin (HTT) gene. HTT is a large protein, interacts with many partners and is involved in many cellular pathways, which are perturbed in HD. Therapies targeting HTT directly are likely to provide the most global benefit. Thus there is a need for preclinical models of HD recapitulating human HTT genetics. We previously generated a humanized mouse model of HD, Hu97/18, by intercrossing BACHD and YAC18 mice with knockout of the endogenous mouse HD homolog (Hdh). Hu97/18 mice recapitulate the genetics of HD, having two full-length, genomic human HTT transgenes heterozygous for the HD mutation and polymorphisms associated with HD in populations of Caucasian descent. We have now generated a companion model, Hu128/21, by intercrossing YAC128 and BAC21 mice on the Hdh-/- background. Hu128/21 mice have two full-length, genomic human HTT transgenes heterozygous for the HD mutation and polymorphisms associated with HD in populations of East Asian descent and in a minority of patients from other ethnic groups. Hu128/21 mice display a wide variety of HD-like phenotypes that are similar to YAC128 mice. Additionally, both transgenes in Hu128/21 mice match the human HTT exon 1 reference sequence. Conversely, the BACHD transgene carries a floxed, synthetic exon 1 sequence. Hu128/21 mice will be useful for investigations of human HTT that cannot be addressed in Hu97/18 mice, for developing therapies targeted to exon 1, and for preclinical screening of personalized HTT lowering therapies in HD patients of East Asian descent.