The caregiving burden scale among Chinese caregivers of Alzheimer patients

Repercussions of Caregiving on Caregivers of Stroke Survivors: A Cross-Sectional Study

BACKGROUND

Stroke is one of the most common causes of disability. Stroke survivors may have a wide variety of sensorimotor, cognitive, perceptual, and behavioral dysfunctions. The majority of long-term care for stroke survivors in residential settings is provided by informal caregivers, such as family members. This study was conducted to assess the burden of caregiving on caregivers of stroke survivors.

MATERIALS AND METHODS

This cross-sectional study was conducted by the Department of Physical Medicine and Rehabilitation in a tertiary care institute in Western India. Patients were evaluated for inclusion and exclusion criteria. Caregiver strain among caregivers was assessed using the Modified Caregiver Strain Index Questionnaire (MCSI). The Katz index was used to assess activities of daily living.

RESULTS

The inclusion and exclusion criteria were fulfilled by 125 primary caregivers of stroke patients. Among stroke survivors, the majority were male (57.6%), and caregivers were wives of stroke survivors (28.8%). There was a significant statistical difference in the median of the modified caregiver strain index when the stroke survivor was male (p=0.034), fully dependent (p<0.001), and had a hemorrhagic stroke (p<0.001). There was no significant statistical difference in the median of the MCSI based on the sex of caregivers (p=0.928). There was a positive correlation between the age of the patient and MCSI (r=0.373, p<0.001). No correlation was found between the MCSI and age of caregivers (r=-0.108, p=0.230) and duration of stroke (r=-0.089, p=0.321).

CONCLUSION

The findings in our study provide evidence that caregivers of stroke survivors experience significant levels of strain. It is desirable to recognize caregiver strain during the rehabilitation of stroke survivors and manage it appropriately.

Understanding neuropsychiatric symptoms in Alzheimer's disease: challenges and advances in diagnosis and treatment

Neuropsychiatric symptoms (NPS) in Alzheimer's disease (AD) affect up to 97% of AD patients, with an estimated 80% of current AD patients experiencing these symptoms. Common AD-associated NPS include depression, anxiety, agitation, aggression, and apathy. The severity of NPS in AD is typically linked to the disease's progression and the extent of cognitive decline. Additionally, these symptoms are responsible for a significant increase in morbidity, mortality, caregiver burden, earlier nursing home placement, and greater healthcare expenditure. Despite their high prevalence and significant impact, there is a notable lack of clinical research on NPS in AD. In this article, we explore and analyze the prevalence, symptom manifestations, challenges in diagnosis, and treatment options of NPS associated with AD. Our literature review reveals that distinguishing and accurately diagnosing the NPS associated with AD remains a challenging task in clinical settings. It is often difficult to discern whether NPS are secondary to pathophysiological changes from AD or are comorbid psychiatric conditions. Furthermore, the availability of effective pharmaceutical interventions, as well as non-pharmacotherapies for NPS in AD, remains limited. By highlighting the advance and challenges in diagnosis and treatment of AD-associated NPS, we aspire to offer new insights into the complexity of identifying and treating these symptoms within the context of AD, and contribute to a deeper understanding of the multifaceted nature of NPS in AD.

Effects of manual massage given by family caregivers for patients with dementia: A preliminary investigation

OBJECTIVES

To explore the effects of a 10-week manual massage intervention given by caregivers of patients with dementia on the behavioral and psychological symptoms of dementia (BPSD) and caregiver burden.

METHODS

Twelve pairs of participants-patients with dementia and their family caregivers-were recruited. Before the intervention, caregivers received a four-hour full body manual massage training course. Thereafter, the caregivers gave a 30-min massage to the patients once a week for a 10-week period. The Cornell Scale for Depression in Dementia, Cohen-Mansfield Agitation Inventory, and Zarit Burden Scale were administered pre- and post-intervention.

RESULTS

Total scores on all questionnaires significantly decreased after the intervention (p < .05). Moreover, two subscale scores of the Cornell Scale for Depression in Dementia-behavioral disturbance and physical signs-reduced significantly (p < .05).

CONCLUSIONS

This study provides preliminary evidence on the benefits of manual massage given by caregivers for the management of BPSD and caregiver burden.

Caregiver Burden and Dementia: A Systematic Review of Self-Report Instruments

Background: As the demand for dementia care grows rapidly worldwide, heavy “caregiver burden” has been associated with stress and depression. Even so, standard metrics for interdisciplinary research of caregiver burden are limited. Objective: The objective of the present review is to recommend valid, reliable, and comprehensive self-report instruments of caregiver burden. Methods: A systematic review was performed using four databases, searched in April 2021. Articles that established or evaluated self-report instruments for dementia caregiver burden were included, while studies that involved non-dementia caregivers or did not clearly define caregiver burden were excluded. Established guidelines for reliability and agreement studies were used to assess quality and risk of bias. Assessments of self-report instruments were made based on reliability, validity, feasibility, and quality of psychometric evaluations, and comparative evaluations were presented in visual form using radar graphs. Results: Search terms yielded 1,720 articles, and 40 were included in the systematic review after excluding those of low quality. Based on the results of these studies, we recommend the Zarit Burden Interview, Screen for Caregiver Burden, Caregiver Burden Interview, and Burden Scale for Family Caregivers, due to their validity, reliability, and inclusion of multiple subjective and objective dimensions of burden. Conclusion: Targeting specific sources of caregiver burden can help prevent negative outcomes for both dementia patients and caregivers. Future studies should apply self-report instruments to measure and address caregiver burden longitudinally.

Depression among caregivers of patients with dementia: Associative factors and management approaches

As elderly people increasingly come to represent a higher proportion of the world’s population, various forms of dementia are becoming a significant chronic disease burden. The World Health Organization emphasizes dementia care as a public health priority and calls for more support for family caregivers who commonly play a significant, central role in dementia care. Taking care of someone with dementia is a long-term responsibility that can be stressful and may lead to depression among family caregivers. Depression and related behavioral and cognitive changes among caregivers could in turn affect the status and prognosis of the dementia patient. This review article explores depression in dementia caregivers and summarizes proposed mechanisms, associated factors, management and research findings, and proposes future research directions.

Structural Equation Modeling (SEM): Childhood Aggression and Irritable ADHD Associated with Parental Psychiatric Symptoms

Background: Children with attention deficit hyperactivity disorder (ADHD) co-occurring with Oppositional Defiant Disorder (ODD) further present aggressive behavior and may have a depressive parent. A child with co-occurring ADHD and ODD has differentially higher levels of behavioral and emotional difficulties. Little is known about how the irritable subtype of ADHD in children mediates the development of parental symptomatology. This study aims to elucidate the direct or indirect influence of childhood disruptive ADHD with aggressive behavior on their parental symptom using Structural Equation Modeling (SEM). Methods: A total of 231 ADHD children and their parents completed the Swanson, Nolan, and Pelham Version IV questionnaire for symptoms of ADHD, Oppositional Defiant Disorder (ODD) scale for irritable symptoms, Child Behavior Check List (CBCL) for aggression, and Symptom Checklist (SCL) for parental symptom. Results: The three-factor confirmatory factor analysis (CFA) model found symptoms of inattention, hyperactivity/impulsivity, irritable ODD, and aggression were inter-related. Mediational analyses demonstrated ODD mediates symptoms directly predicting the risk of increasing ADHD severity. Disruptive child symptoms (ADHD + ODD + aggression) may increase the risk of depression-related symptoms in the parent. When the child’s aggression increases by one standard deviation (SD), parental psychiatric symptoms increase by 0.235 SD (p < 0.001). Conclusions: By this SEM pathway analysis, there is the correlation between the disruptive, more aggressive subtype of ADHD in children/adolescents and the existence of psychopathological symptomatology of their parents. ADHD + ODD + aggression in children should be classified as an irritable subtype of ADHD, warranting early diagnosis and intensive treatment.

Using the Apriori Algorithm to Explore Caregivers' Depression by the Combination of the Patients with Dementia and Their Caregivers

Purpose

The purpose of this study was to identify the caring scenarios that result in severe depression in caregivers caring for dementia patients.

Patients and Methods

A cross-sectional study with 1111 dementia patients and their caregivers in Taiwan from October 2015 to January 2020 was conducted. Gender, age, type of dementia, clinical dementia rating, walking ability, mood symptoms, behavioral symptoms, and psychological symptoms were the variables from the dementia patients. Age, relation to the patient, employment, type of primary care, frequency of care, mood symptoms, and the score from the Center for Epidemiologic Studies Depression Scale were the variables from the caregivers. A comprehensive viewpoint of both dementia patients and their caregivers was evaluated by the Apriori algorithm to find the attributes resulting in different caregiving depressions.

Results

Forty-seven rules were found with 18 rules of mild depressive symptomatology, 17 rules of moderate depressive symptomatology, and 12 rules of severe depressive symptomatology. A total of 7 general rules were summarized to be the severe depressive symptomatology. The results showed that an unemployed or retired caregiver with the mood symptoms such as helplessness, anger, emotional liability, or anxiety who took care of AD patients or AD patients with a moderate severity would have severe depression. Increased care frequencies (≥6 days per week) and multiple mood problems from caregivers result in severe depression. The composition of adult children, patients' aggression, and caregivers' helplessness as well as the combinations of male patients aged 75-84 years with the caregiver's mood of helplessness or nervousness and hopelessness were highly associated with severe depression.

Conclusion

For those caring for AD patients, severe depression was associated with the combination of different parameters to constitute each of these seven scenarios. Unlike previous studies which often evaluated one or two variables related to caregiver's depression, this study provided a more comprehensive viewpoint that enabled the collaborative team to efficiently identify and manage different scenarios by summarizing the rules of caregivers with severe depression from a systematic viewpoint.

A Nurse-Led Education Program for Pneumoconiosis Caregivers at the Community Level

Pneumoconiosis is an irreversible chronic disease. With functional limitations and an inability to work, pneumoconiosis patients require support from family caregivers. However, the needs of pneumoconiosis caregivers have been neglected. This study aimed to evaluate the effectiveness of a nurse-led education program, which involved four weekly 90-min workshops led by an experienced nurse and guided by Orem’s self-care deficit theory. A single-group, repeated-measure study design was adopted. Caregivers’ mental health (Hospital Anxiety and Depression Scale, HADS, four single items for stress, worriedness, tiredness, and insufficient support), caregiving burdens (caregiving burden scale, CBS), and unmet direct support and enabling needs (Carer Support Needs Assessment Tool, CSNAT) were measured at the baseline (T0), immediately after (T1), and one month after intervention (T2); 49, 41, and 28 female participants completed the T0, T1, and T2 measurements. Mean age was 65.9 years old (SD 10.08) with a range between 37 and 85 years old. The program improved the caregivers’ mental wellbeing, and reduced their caregiving burdens and their unmet support and enabling needs, both immediately (T1) and one-month after the intervention (T2). In particular, the intervention improved the caregivers’ mental wellbeing significantly, specifically depression symptoms, stress, and tiredness immediately after the intervention; and reduced most of their unmet support needs and unmet enabling needs one-month after the intervention. This was the first nurse-led program for pneumoconiosis caregivers and should serve as a foundation for further studies to test the program with robust designs.

Determinants of caregiver burden of patients with haemorrhagic stroke in China

AIM

The aim of this study was to assess the caregiver burden over time of patients with haemorrhagic stroke and the determinants of this.

BACKGROUND

Identification of the predictors for caregiver burden can be used to improve the outcomes of stroke survivors and caregivers. Few studies focus on the caregiver burden of patients with haemorrhagic stroke and how this changes over time.

DESIGN

This was a prospective longitudinal study.

METHODS

A convenience sample of 202 stroke survivor/caregiver pairs were recruited in the neurosurgery unit from March 2015 to March 2016. The participants were assessed at three different times by face to face or telephone interview. Caregiver burden was assessed using the Bakas Caregiver Outcomes Scale. Sociodemographic data and other characteristics of the pairs were also collected. Multiple linear regression was performed to identify the determinants.

RESULTS

Caregiver burden decreased from T1 to T3 significantly. The physical function, depression of stroke survivors, and self-rated burden of caregivers were the most important determinants for overall caregiver burden. The factors identified explained 41.6% to 67.4% of overall burden.

CONCLUSION

Caregiver burden decreased over time, affected by factors from patients and caregivers. More professional caregivers are needed to support informal carers.

A Meta-analytic Study of Predictors for Informal Caregiver Burden in Patients With Stroke

BACKGROUND

Several studies have reported on predictors for caregiver burden in patients with stroke, but the magnitude of the impact of these variables remains unclear. The aim of the study was to determine the magnitude of relationship between each predictor and caregiver burden.

METHODS

Articles related to this filed were search in PUBMED, MEDLINE and Cochrane Library electronic database from the upset to May 2018. Of the 812 articles identified, 22 were included in the final analysis (3025 patients and 2887 caregivers). Weighted correlation coefficient (r-index) was computed as effect size for each predictor.

RESULTS

Of predictor variables of patients, the activity of daily living and anxiety had moderate to large effect sizes; gender, neurological function and depression had the small to moderate effect sizes. Of caregivers' predictors, depression, anxiety, and sense of coherence had large effect sizes; gender, daughter in law, physical health and employment status had small to moderate effect sizes.

CONCLUSIONS

The most powerful predictors of caregiver burden using meta-analysis were identified to direct future research and evidence-based practice.

Measures used to assess burden among caregivers of stroke patients: a review

Objective: To describe measures used to evaluate the burden of caregiving experienced by caregivers of stroke patients and their clinimetric properties.

Design: A review of the literature was conducted to examine burden scales with regard to concept, feasibility, internal consistency, validity, reliability and responsiveness.

Results: The literature search resulted in 45 measures of caregiver outcomes, including 16 different measures of caregiver burden. About half of the scales were used only once and were not further described. Nearly all instruments measure the various dimensions of burden (competency, negative feelings, social relations, participation problems, physical and mental health and economic aspects), but not in the same proportions. Most measures showed good internal consistency, and validity was demonstrated for all measures except one. However, not much is known about the reliability and responsiveness of these measures.

Conclusions: No measure has proven superiority above others. Future research should focus on comparisons between existing instruments and on their reliability and responsiveness.

Association between caregiver depression and individual behavioral and psychological symptoms of dementia in Taiwanese patients

INTRODUCTION

The aim of this study was to investigate caregiver depression associated with neuropsychiatric symptoms in Taiwanese people.

METHODS

A cross-sectional design was used in this study. Two hundred seventy-six pairs of patients with dementia and their caregivers who visited the memory clinic of a general hospital from July 2001 to October 2008 were recruited. Caregiver depression was evaluated with the Center for Epidemiologic Studies Depression Scale (CES-D); the behavioral and psychological symptoms of dementia were evaluated using the Neuropsychiatric Inventory. Demographic data of the patients and caregivers, including cognitive functions and clinical dementia ratings, were collected. In addition to descriptive statistics, we examined the relationship between each parameter and caregiver depression using Pearson correlation, independent t-test, or analysis of variance.

RESULTS

The results showed a statistically significant positive correlation between the total Neuropsychiatric Inventory score and CES-D score (r = 0.345, P < 0.001) in the bivariate analyses. For individual behavioral and psychological symptoms of dementia, agitation/aggression, anxiety, nighttime behavior disturbances, irritability/lability, and hallucinations were the five leading symptoms significantly associated with caregiver depression (CES-D).

DISCUSSION

Carefully managing these symptoms is likely to reduce depression in dementia caregivers.

The mediating effect of caregiver burden on the caregivers' quality of life

[Purpose] Quality of life (QoL) can be closely related to caregiver burden, which may be a potential mediating effect on the relationships among stroke patient caregivers. This study investigated the predictors of caregiver’s QoL based on patient and caregiver characteristics, with caregiver burden as a mediator. [Methods] This study was conducted using surveys, a literature review, and interviews. Survey data were collected from 238 subjects, who were diagnosed with stroke, and their family caregivers from October 2013 to April 2014. [Results] Caregiver health status, income, spouses caring for patients, and duration of hospitalization were identified as significant predictors of caregivers’ QoL with a mediating effect of caregiver burden. The time spent on caregiving per day and patient education level were the only direct predictors of caregivers’ QoL. [Conclusion] The responsibility of caring for patients with stroke, in particular for a spouse, must be administered by means of a holistic family-centered rehabilitation program. In addition, financial support and availability of various health and social service programs must be comprehensively provided in order to maintain caregivers’ well-being.

Self-efficacy partially mediates between social support and health-related quality of life in family caregivers for dementia patients in Shanghai

BACKGROUND

There is a paucity of research assessing health-related quality of life (HRQoL) and self-efficacy in caregivers of relatives with dementia in mainland China.

AIMS

To compare the level of HRQoL between caregivers and the general population in mainland China and to assess the role of caregiver self-efficacy in the relationship between caregiver social support and HRQoL.

METHODS

A cross-sectional study was conducted in Shanghai, China. The caregivers were recruited from the outpatient department of a teaching hospital. A total of 195 participants were interviewed, using a survey package including the Chinese version of the 36-Item Short-Form Health Survey (SF-36), demographic data, the variables associated with the impairments of care recipients, perceived social support and caregiver self-efficacy. The caregivers' SF-36 scores were compared with those of the general population in China.

RESULTS

The results indicated that the HRQoL of the caregivers was poorer compared with that of the general population when matched for age and gender. Multiple regression analyses revealed that caregiver self-efficacy is a partial mediator between social support and HRQoL, and a partial mediator between behavioral and psychological symptoms of dementia (BPSD) and caregiver mental health.

CONCLUSION

Assisting with managing BPSD and enhancing caregiver self-efficacy can be considered integral parts of interventions to improve caregiver HRQoL.

Expressed emotion and depression in caregivers of older adults with dementia: results from Taiwan

OBJECTIVES

The purpose of this study was to examine the relationship between (1) expressed emotion (EE) and characteristics of Taiwanese dementia patients and their family caregivers and (2) EE and depressed mood, burden, and perception of health in Taiwanese caregivers of elderly persons with dementia.

METHODS

Sixty-five primary caregivers of elderly persons with mild to severe dementia were recruited from institutions in Taiwan and they completed four standardized questionnaires: Level of Expressed Emotion (LEE) scale, Center for Epidemiologic Studies Depression (CES-D) scale, Zarit Burden Inventory (ZBI), and General Health Perceptions subscale of the Medical Outcomes Study Short Form 36 Health Survey (MOS SF-36).

RESULTS

EE was positively associated with caregiver depression (r = .543; p < .001) and burden (r = .532; p < .001), and negatively associated with caregivers' perceived health (r = -.316; p = .010). The higher the caregivers' depression and burden, the greater was their EE and the lower the caregivers' perceived health, the higher was their EE. EE was negatively associated with caregiver education (r = -.279; p = .024) and income (r = -.261; p = .036). The lower the caregivers' education and income, the higher was their EE.

CONCLUSION

The significant relationship between EE and caregivers' mood and perceived burden suggests that caregivers with elevated mood or burden may put persons with dementia at greater risk for toxic, negative interactions from them. Although this study's design precludes attributing directionality, more depressed caregivers are at a greater risk of higher EE which may affect care of their elderly demented family members. Additional research is warranted with a larger sample size and/or a longitudinal design.

Self-efficacy moderation and mediation roles on BPSD and social support influences on subjective caregiver burden in Chinese spouse caregivers of dementia patients

ABSTRACT Background: This study aims to explore moderation and mediation roles of caregiver self-efficacy between subjective caregiver burden and (a) behavioral and psychological symptoms (BPSD) of dementia; and (b) social support. Methods: A cross-sectional study with 137 spouse caregivers of dementia patients was conducted in Shanghai. We collected demographic information for the caregiver-patient dyads, as well as information associated with dementia-related impairments, caregiver social support, caregiver self-efficacy, and SF-36. Results: Multiple regression analysis showed that caregiver self-efficacy was a moderator both between BPSD and subjective caregiver burden, and social support and subjective caregiver burden. Results also showed a partial mediation effect of caregiver self-efficacy on the impact of BPSD on subjective caregiver burden, and a mediation effect of social support on subjective caregiver burden. Caregiver self-efficacy and subjective burden significantly influenced BPSD and social support. Conclusion: Caregiver self-efficacy played an important role in the paths by which the two factors influenced subjective burden. Enhancing caregiver self-efficacy for symptom management (particularly BPSD) can be an essential strategy for determining interventions to support dementia caregivers in China, and possibly in other countries.

Validation of the Chinese version of the Modified Caregivers Strain Index among Hong Kong caregivers: an initiative of medical social workers

Family caregivers may often experience caregiving stress and burden. To systematically assess this issue, medical social workers may need to use a brief and valid measurement in their practice. In the Hong Kong Chinese context, one additional challenge is to examine whether a measurement developed in the West is valid for Hong Kong Chinese caregivers. Thus, medical social workers in Hong Kong initiated this research study to validate the Chinese version of the Modified Caregiver Strain Index (C-M-CSI). A total of 223 Chinese caregivers of patients with various chronic illnesses were recruited for this validation study. C-M-CSI demonstrated good reliability (Cronbach's alpha coefficient = .91), concurrent validity with the Chinese version of the Caregiver Burden Inventory, and discriminant validity with the Chinese version of the Meaning in Life Questionnaire. Factor analysis yielded a single factor as the original M-CSI, which explained 49 percent of variance. Construct validity was shown by differentiating spousal and nonspousal caregivers, as well as caregivers of patients with and without behavioral problems. C-M-CSI is recommended as a brief and valid measurement that can be used by medical social workers in assessing the caregiving strain of Chinese caregivers of patients in Hong Kong.

Predictors of the depressive symptomatology of the family caregivers of Chinese stroke patients in Hong Kong

The aim of this cross-sectional study was to determine the socio-demographic and clinical factors associated with depressive symptoms in the family caregivers of Hong Kong Chinese stroke patients. One hundred and twenty-three patients at a stroke clinic and their family caregivers formed the study sample. The depressive symptoms of both the patients and their family caregivers were rated with the Chinese version of the 15-item Geriatric Depression Scale (GDS). Participants' socio-demographic data and clinical characteristics served as the independent variables in relation to the caregivers' GDS scores. Patients' and caregivers' somatic and psychological conditions were measured with 10 scales. In univariate analysis, caregivers' GDS scores were significantly correlated with certain of their characteristics [Modified Life Event Scale (MLES), Cumulative Illness Rating Scale (CIRS) and Lubben Social Network Scale (LSNS) scores, sex and being a housewife] and those of the patients (GDS score and being a housewife). Multiple regression analysis showed caregivers' MLES and CIRS scores and patients' GDS scores to be independent correlates of caregivers' GDS scores. Adverse events encountered by caregivers in the past 6 months, their current health problems and patients' depressive symptoms were found to be the principal factors associated with caregivers' depressive symptoms.

Burden of Chinese stroke family caregivers: the Hong Kong experience

OBJECTIVE

To ascertain the clinical and sociodemographic factors associated with family caregivers' burden in Chinese patients with stroke in Hong Kong.

DESIGN

Cross-sectional design.

SETTING

Stroke Clinic.

PARTICIPANTS

Patients (N=123) from a stroke clinic and their family caregivers.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Predictive factors of family caregivers' burden in Chinese stroke patients in Hong Kong. Caregivers' burden was assessed with the Caregiving Burden Scale (CBS). Patients' and caregivers' sociodemographic data and clinical characteristics were recorded. Physical and psychological conditions were measured and rated with the following instruments: Cumulative Illness Rating Scale, Geriatric Depression Scale (GDS), Barthel Index, Instrumental Activities of Daily Living, Mini-Mental State Examination, Lubben Social Network Scale, Modified Life Event Scale (MLES), Hospital Anxiety and Depression Scale (HADS), and a single question about fatigue.

RESULTS

In the univariate analysis, the CBS score had significant correlations with certain characteristics of caregivers (sex, GDS, HADS, depressive symptoms, fatigue, and MLES) and those of patients' (sex, age, education, GDS). Regression analysis revealed that caregivers' GDS and patients' education were the independent correlates of the CBS.

CONCLUSIONS

The severity of depressive symptoms in Chinese stroke caregivers and patients' education are independent factors associated with the caregivers' burden. Further studies evaluating interventions on caregivers' burden should include the assessment and management of mood disorders.

Caregiver burden associated with behavioral and psychological symptoms of dementia (BPSD) in Taiwanese elderly

The purpose of this study was to investigate caregiver burden associated with BPSD in Taiwanese people. The study had a cross-sectional design. Eighty-eight patients with dementia and 88 caregivers who visited the memory clinic of a medical center from January 2007 to December 2007 were recruited. The BPSD were assessed using the neuropsychiatric inventory (NPI); caregiver burden was evaluated using the NPI caregiver distress scale (NPI-D). Demographic data on the patients and caregivers along with patients' cognitive functions and clinical dementia ratings were collected. In addition to descriptive statistics, we analyzed the relationship between each parameter and caregiver burden using binary correlation. The results showed a statistically significant positive correlation between the total NPI-D score and the total NPI score (r=0.898, p<0.001). For individual BPSD, delusions had the highest mean NPI-D score, followed by agitation/aggression, anxiety, irritability/lability, and dysphoria/depression. The symptom frequency of anxiety, delusions, and agitation/aggression showed a statistically significant positive correlation with caregiver's NPI-D score. These findings suggest that improvement of treatments for delusions, agitation/aggression, anxiety, irritability/lability, and dysphoria/depression among dementia patients may reduce caregiver burden.

Spouses, adult children, and children-in-law as caregivers of older adults: a meta-analytic comparison

The present meta-analysis integrates the results from 168 empirical studies on differences between caregiving spouses, adult children, and children-in-law. Spouses differ from children and children-in-law significantly with regard to sociodemographic variables; also, they provide more support but report fewer care recipient behavior problems. Spouse caregivers report more depression symptoms, greater financial and physical burden, and lower levels of psychological well-being. Higher levels of psychological distress among spouses are explained mostly--but not completely--by higher levels of care provision. Few differences emerge between children and children-in-law, but children-in-law perceive the relationship with the care recipient as less positive and they report fewer uplifts of caregiving.

Caregiving burden and quality of life of pneumoconiosis caregivers in Hong Kong

OBJECTIVE

Silicosis is the most common type of pneumoconiosis in Hong Kong. This study explored the clinical correlates of the caregiving burden and quality of life (QOL) among pneumoconiosis caregivers in Hong Kong.

METHODS

The study sample included 112 patients with pneumoconiosis and their caregivers. Caregiving burden was measured using the Caregiving Burden Scale (CBS), and caregivers' QOL was assessed using the physical and mental components (PCS and MCS, respectively) of the Medical Outcomes Short Form-36. Pearson's correlation coefficient and Spearman's ρ were calculated to examine the relationship between CBS, PCS, and MCS scores and caregivers' and patients' sociodemographic variables. Stepwise regression analyses were performed to determine the independent correlates of CBS, PCS, and MCS scores.

RESULTS

Caregiving burden was correlated with certain patient characteristics (duration of disease, severity of dyspnea, exercise tolerance, depressive symptoms, daily functioning, and community living skills) and with caregivers' variables (depressive symptoms and availability of family support). Regression analysis showed that patients' daily functioning (β = -.345), caregivers' depressive symptoms (β = .509), and the availability of family support (β = .240) were independent correlates of caregiving burden, explaining 45% of the variance. The independent correlates of PCS included patients' severity of coexisting diseases (β = -.179) and caregivers' depressive symptoms (β = -.521). Both patients' (β = -.155) and caregivers' (β = -.633) depressive symptoms and patients' severity of dyspnea (β = -.183) were independent correlates of the MCS.

CONCLUSION

Caring for pneumoconiosis patients entails a significant caregiving burden for caregivers, and adversely affects their QOL. Caregivers' depressive symptoms are related to both their caregiving burden and QOL.

Research on caregiving in Chinese families living with mental illness: a critical review

Much of the existing research on caregiving in families of individuals with mental illness has been conducted in Western societies. Therefore, the purpose of this review was to critically examine research on caregiving in families of individuals with mental illness living in Taiwan, Hong Kong, and Mainland China. A search using computerized databases, public search engines, and references from retrieved articles revealed 37 studies published from 1990 to 2009. Four studies were theory driven at an individual level, and one study was guided by a family-level framework. Thirty-two articles were quantitative studies, and 5 were qualitative studies. All but 5 of 37 studies were cross-sectional. Findings suggest that misconceptions about mental illness, behavior disturbances, inadequate social support, and the limited value placed on caregiving contribute to maladaptation. Future research should include longitudinal studies guided by culturally appropriate family frameworks and studies using mixed methods.

Unrecognised psychological problems impair quality of life and increase consultation rates in Chinese elderly patients

OBJECTIVE

Studies have shown that psychological problems in elderly patients are often unrecognised in primary care. The aim of this study was to investigate the quality of life and consultation rates of Chinese elderly patients with unrecognised psychological problems in primary care. The prevalence and risk factors of unrecognised psychological problems were also determined.

METHODS

A cross-sectional study on consecutive patients aged > or =60 with no known psychological diseases were screened by the Hospital Anxiety and Depression Scale (HADS) when they consulted at two primary care clinics in Hong Kong. Data on socio-demographic characteristics, chronic morbidity, consultation rates, and health-related quality of life (HROQL) were collected. Multivariable regressions were used to determine the effect of a positive HADS score on HRQOL scores and consultation rates, and the risk factors of unrecognised psychological problems.

RESULTS

One thousand eight hundred and fifty-four subjects (mean age 72.6 years and 52% male) were screened and the estimated prevalence of unrecognised psychological diseases was 23% (95% CI = 13.1-33.8%). A positive screening result was associated with poorer SF-36 HROQL scores and higher episodic consultation rates. An increased risk of unrecognised psychological problems was associated with the presence of more than two chronic diseases. Other risk factors included female gender, no formal education and having chronic pulmonary disease or heart disease. Living with a spouse increased the risk in elderly women.

CONCLUSIONS

Unrecognised psychological problems are common in Chinese elderly patients in primary care. They are clinically important because they impair quality of life and increase the utilization of consultations.

The association between children's ADHD subtype and parenting stress and parental symptoms

Objective. To investigate the association between two attention deficit/hyperactivity disorder (ADHD) subtypes-combined and inattentive subtypes-and parental stress in a Taiwanese population. Method. One hundred and nine children with ADHD were interviewed using the MINI Kid questionnaire. The children were divided into combined and inattentive subtypes. The level of parenting stress was measured with the self-report Parenting Stress Index and Parental Symptom Scale (Symptom Check List, SCL-90). The data were used to identify child and parental risk factors. Results. Combined subtype was highly associated with parental stress. Parents of children in this group were significantly younger, had a poorer understanding of ADHD, and had significantly higher levels of marital discord, parenting stress, parental symptoms, and life stress (all P<0.05). Multivariate analysis revealed that age of mother, child with comorbidity diagnosis, and parents with poor understanding of ADHD were significantly associated with the combined subtype relative to inattentive subtype (all P<0.05). Conclusion. The combined subtype of ADHD is associated with more parental psychopathology and stress than the inattentive subtype and the presence of combined subtype may indicate that such a child is at greater risk than the inattentive subtype for comorbid conditions such as oppositional defiant disorder and conduct disorder.

The reliability, validity and feasibility of tools used to screen for caregiver burden: a systematic review

OBJECTIVE

The overall objective of this review is to quantitatively measure the psychometric properties and the feasibility of caregiver burden screening tools. The more specific objectives were to determine the reliability, validity as well as feasibility of tools that are used to screen for caregiver burden and strain.

INCLUSION CRITERIA

This review considered international quantitative research papers that addressed the psychometric properties and feasibility of caregiver burden screening tools.

SEARCH STRATEGY

The search strategy aimed to find both published and unpublished studies from 1980-2007 published only in the English language. An initial limited search of MEDLINE and CINAHL was undertaken followed by analysis of the text words contained in the title and abstract and the index terms used to describe the article. A second search identified keywords and index terms across major databases. Third, the reference list of identified reports and articles was searched for additional studies.

METHODOLOGICAL QUALITY

Each paper was assessed by two independent reviewers for methodological quality prior to inclusion in the review using an appropriate critical appraisal instrument from the Joanna Briggs Institutes' System for the Unified Management, Assessment and Review (SUMARI) package.

LIMITATIONS

Because burden is a multidimensional construct defined internationally with a multitude of other terms, only those studies whose title, abstract or keywords contained the search terminology developed for this review were identified for retrieval.

RESULTS

The construct of caregiver burden is not standardized, and many terms are used to describe burden. A caregiver is also identified as a carer. Instruments exist in multiple languages and have been tested in multiple populations. A total of 112 papers, experimental and non-experimental in nature, were included in the review. The majority of papers were non-experimental studies that tested or used a caregiver burden screening tool. Because of the nature of these papers, a meta-analysis of the results was not possible. Instead a table is used to depict the 74 caregiver burden screening tools that meet the psychometric and feasibility standards of this review. The Zarit Burden Interview (ZBI), in particular the 22-item version, has been examined the most throughout the literature. In addition to its sound psychometric properties, the ZBI has been widely used across languages and cultures.

IMPLICATIONS FOR PRACTICE AND RESEARCH

The significant amount of research that has already been done on psychometric testing of caregiver burden tools has provided a solid foundation for additional research. Although some tools have been well tested, many tools have published limited psychometric properties and feasibility data. The clinician needs to be aware of this and may need to team up with a researcher to obtain additional research data on their specific population before using a minimally tested caregiver burden screening tool. Because caregiver burden is multidimensional and many different terms are used to describe burden, both the clinician and researcher need to be precise in their selection of the appropriate tool for their work.

Caregiving Burden, Community Services, and Quality of Life of Primary Caregivers of Frail Elderly Persons

Caregiving burden was found to be affected by a multiplicity of factors and to affect the quality of life of family caregivers. The present study is aimed at examining the extent to which various supportive services help to alleviate caregivers' burden and the extent to which caregivers' burden affects various domains of the quality of life of primary caregivers and also to investigate the factors that best explain quality of life. The sample includes 114 primary caregivers who provided care to physically disabled elderly family members. Data were collected through face-to-face interviews. The findings show that various domains of the quality of life of primary caregivers were affected by the level of the caregivers' burden and the types of services provided to the elderly person, by caregivers' characteristics, as well as their health and economic status.

Leptin receptor expression in fetal lung increases in late gestation in the baboon: a model for human pregnancy

Leptin produced by both adipose tissue and the placental trophoblast, has been proposed to regulate numerous aspects of human conceptus development. Although recent animal studies have suggested an additional role for the polypeptide in fetal lung maturation, no evidence has been reported in primates. Therefore, we employed the baboon (Papio sp.), a well-characterized primate model for human pregnancy, to determine the presence and ontogeny of leptin receptor in fetal lung with advancing gestation. Lungs were collected from fetal baboons, early in gestation (days 58-62, n = 4), at mid gestation (days 98-102, n = 4), and late in gestation (days 158-165, n = 4) (term 184 days). mRNA transcripts for leptin (LEP) and both long and short intracellular domain isoforms of the leptin receptor (LEP-R(L) and LEP-R(S)) were assessed by RT-PCR. leptin receptor protein was evaluated by immunoblotting and cell types expressing leptin receptor were identified in late pregnancy by immunohistochemistry. Fetal serum leptin concentrations, determined by RIA, remained relatively unchanged at 5.7 +/- 1.1 ng/ml (mean +/- s.e.m.) in mid pregnancy and 8.4 +/- 3.0 ng/ml in late pregnancy (P > 0.05). Although leptin were detectable in fetal lung, no changes in transcript abundance were apparent with advancing gestation. However, transcripts for both LEP-R(L) and LEP-R(S) receptor isoforms increased several-fold (P < 0.05) in fetal lung between mid and late gestation, while leptin receptor protein was detectable only in late pregnancy. leptin receptor was localized in distal pulmonary epithelial cells, including type II pneumocytes. In conclusion, leptin is present in the fetal baboon and its receptor is enhanced during late gestation in cells responsible for the synthesis of pulmonary surfactant. Collectively, these and past findings may suggest a modulatory role for the polypeptide in pulmonary development and/or may identify leptin receptor as a physiological marker of primate fetal lung maturity.

Health consequences of Alzheimer's caregiving transitions: effects of placement and bereavement

OBJECTIVE

To determine the extent to which the chronic stress of Alzheimer's disease caregiving may be alleviated by placement or death of the Alzheimer's disease patient, we prospectively compared groups of caregivers (CG) who continued to care for their Alzheimer's disease spouse at home, CG who placed their spouses, and CG whose spouses died with similarly aged noncaregiving comparison subjects (control subjects).

METHODS

A sample of 119 CG who had been studied for at least 18 months at 6-month intervals was included in the present analyses (ie, had at least three assessments). Data were gathered on CG mood, blood pressure, and medical symptoms among 38 CG whose spouses were at home at all three visits (home-home-home [HHH]); 28 CG who placed their spouse at follow-up (home-placed-placed [HPP]); 27 CG whose spouses were placed and subsequently died at follow-up (home-placed-deceased [HPD]); and 26 CG whose spouses died at home (home-deceased-deceased [HDD]). Data were compared with 48 noncaregiving control subjects (NC group).

RESULTS

CG in the HPP, HPD, and HDD groups showed improvement in depressive and physical symptoms compared with HHH and NCs. CG had significantly higher systolic blood pressure at rest than did NCs. Both placement and death of the Alzheimer's disease spouse were associated with higher systolic blood pressure in response to postural challenge in CG experiencing these transitions.

CONCLUSIONS

Despite improvement seen in mood and medical symptoms among CG who place their spouses or experience the spouse's death, there may be longer term physiological alterations, possibly in sympathoadrenalmedullary arousal, that cause the cardiovascular system to continue to respond to acute stressors such as postural challenge more actively for a period of 6 to 12 months after such transitions.

Effect of neuropsychiatric symptoms of Alzheimer's disease on Chinese and American caregivers

BACKGROUND

In Chinese culture, extended family support, acceptance of age-related cognitive changes and filial tradition of caring for elders may decrease caregiver burden and distress in the context of dementia.

OBJECTIVE

To study cross-regional and cross-cultural differences in symptom-related caregiver distress due to the behavioral problems of Chinese and American patients with Alzheimer's disease.

METHOD

Caregivers of patients with Alzheimer's disease at Taipei Veterans General Hospital, Taiwan (n = 89), Chinese University of Hong Kong (n = 31) and the UCLA Alzheimer's Disease Research Center, Los Angeles, California (n = 169) reported the neuropsychiatric symptoms of patients and their corresponding distress on the Neuropsychiatric Inventory.

RESULT

Presence or absence of distress due to the neuropsychiatric symptoms of the patients with Alzheimer's disease was assessed. The three centers differed significantly in the proportions of caregivers with distress caused by depression (p < 0.05) and apathy (p < 0.001). UCLA had higher proportions of caregivers with depression-related distress than Taipei. UCLA caregivers were also more stressed by apathy than caregivers in Taipei and Hong Kong. Logistic regression further supported the findings that depression-related and apathy-related caregiver distress differed between Chinese and American caregivers (p < 0.05).

CONCLUSIONS

The results were surprising, in that American and Chinese (Taipei and Hong Kong) caregivers exhibited similar distress or lack of distress in response to delusions, hallucinations, agitation, anxiety, euphoria, disinhibition, irritability, aberrant motor behavior, sleep and appetite symptoms of Alzheimer's disease patients. Chinese caregivers were less affected by depression and apathy in patients with Alzheimer's disease than Caucasian caregivers.