Detecting Predeath Grief in Family Caregivers of Persons With Dementia: Validity and Utility of the Marwit-Meuser Caregiver Grief Inventory in a Multiethnic Asian Population

Caregiving Experiences as Mediators Between Caregiving Stressors and Anticipatory Grief in Severe Dementia: Findings From Longitudinal Path Analysis

OBJECTIVES

Family caregivers of older adults with severe dementia often experience anticipatory grief. We aimed to investigate the temporal association of caregiving stressors (older adults' behavioral symptoms, and caregiver-older adult co-residence and emotional closeness) and caregivers' anticipatory grief, and its mediation by positive and negative caregiving experiences.

DESIGN

Prospective cohort.

SETTING

Singapore.

PARTICIPANTS

About 169 family caregivers of older adults with severe dementia were surveyed every 4 months for 4 years (up to 13 surveys).

MEASUREMENTS

We measured anticipatory grief using the Marwit Meuser Caregiver Grief Inventory-Short Form, negative caregiving experiences using the Caregiver Reaction Assessment scale, positive caregiving experiences using Gain in Alzheimer Care Instrument and behavioral symptoms using the Cohen-Mansfield Agitation Inventory. We implemented a cross-lagged panel model to test mediation, a form of longitudinal path analysis.

RESULTS

About 35% of the caregivers reported high anticipatory grief at least once during the study period. Older adults' behavioral symptoms had a significant direct effect (Standardized coefficient [95% confidence interval]: 0.12 [0.04, 0.21]) on caregivers' anticipatory grief. Negative experiences mediated the significant indirect effect of older adults' behavioral symptoms (0.16 [0.06, 0.25]) and coresidence (0.16 [0.07, 0.25]) on caregivers' anticipatory grief. Positive caregiving experiences did not mediate any path.

CONCLUSIONS

Findings indicate a temporal association between caregiving stressors and anticipatory grief, mediated by negative caregiving experiences. Routine screening for anticipatory grief, and interventions to address caregiver stressors and negative caregiving experiences may alleviate caregivers' grief.

Anticipatory grief prevalence among caregivers of persons with a life-threatening illness: A meta-analysis

OBJECTIVES

Caring for a family member with a life-threatening illness may lead to increased levels of psychological morbidity. Given the lack of recognition of caregivers' grief, this study aimed to determine the prevalence of anticipatory grief disorders in caregivers of persons with a life-threatening illness for better intervention and management.

METHODS

CINAHL, Cochrane, Embase, Medline, PubMed, Scopus, PsycINFO and Web of Science were searched up to 21 March 2021 without language and time restrictions. The quality of the included studies was assessed with Hoy's criteria. A random-effects model was applied to calculate pooled prevalence rates, and multi-regression was performed to examine heterogeneity among studies.

RESULTS

A total of 3278 citations were retrieved, and 18 studies met the eligibility criteria involving 5470 caregivers. The pooled prevalence of anticipatory grief was 24.78% (95% CI 19.04% to 30.99%). The prevalence rates were significantly higher in female caregivers (16.64%; 95% CI 12.24% to 21.53%) compared with male caregivers (6.11%; 95% CI 4.55% to 7.87%). The married group also had a higher risk (14.66%; 95% CI 10.66% to 19.16%) than single group (5.47%; 95% CI 4.31% to 6.76%).

CONCLUSIONS

The overall pooled prevalence is substantially higher compared with after-loss grief in the general population and supported the presumptions that preloss grief has a greater magnitude compared with after-loss grief. Bereavement support, educational programmes and relevant resources should be delivered even before the actual loss to address the burden of caregivers.

Psychometric properties of a Spanish version of the MM-CGI-SF in caregivers of people with dementia

BACKGROUND

Caregivers of people with dementia may experience characteristic grief linked to present and anticipated losses before the physical death of the care recipient occurs, which is related to physical and mental health problems. The Marwit-Meuser Caregiver Inventory-Short Form (MM-CGI-SF) is an instrument that assesses this type of grief. Since there are no studies on an adaptation of the MM-CGI-SF to the Spanish population, the aim of the study was to evaluate its psychometric properties in a sample of caregivers of dementia patients.

METHODS

A cross-sectional study was carried out. The tool was translated and adapted into Spanish, which was administered to 250 caregivers of people with dementia in the province of Huelva, together with other related instruments. Descriptive statistics and internal consistency reliability were calculated using Cronbach's alpha, for the total questionnaire and for each subscale. A confirmatory factor analysis (CFA) was performed and the Spanish version of the MM-CGI-SF was correlated with the rest of the variables by calculating Spearman's correlation coefficient.

RESULTS

80.4% of the participants were female and had high levels of caregiver grief (x ¯  = 64.62, SD = 14.86). Cronbach's alpha for the general questionnaire was 0.927 and between 0.822-0.854 for its subscales. The fit values of the CFA were: x2  = 202.033, degrees of freedom = 121, x2 /df = 1.670, TLI = 0.954, CFI = 0.963, SRMR = 0.047, RMSEA = 0.052; and all the correlations were statistically significant.

CONCLUSIONS

The Spanish version of the MM-CGI-SF shows adequate psychometric properties. Thanks to this instrument, health professionals may measure caregiver grief, get closer to the reality of dementia care, and evaluate the effectiveness of interventions to manage this grief.

Grief in family carers of people living with dementia: A systematic review

OBJECTIVES

Grief research in family carers of people with dementia has increased. We aimed to report the prevalence of pre-death and post-death grief and to synthesize associated factors and the relationship between pre-death factors and post-death grief and services used to manage grief.

DESIGN

(Prospero protocol: CRD42020165071) We systematically reviewed literature from PsycINFO, MEDLINE, CINAHL, and ASSIA until April 2020. Effectiveness of intervention data and studies not written in English were excluded; qualitative studies were additionally excluded during study selection. Study quality was assessed using the Mixed Methods Appraisal Tool. Evidence was narratively summarized.

PARTICIPANTS

Family non-paid carers of somebody with any dementia type.

MEASUREMENTS

Validated measures of pre-death and/or post-death grief.

RESULTS

We included quantitative data from 55 studies (44 rated as high quality). Most included solely spouse or adult child carers. Forty-one studies reported pre-death grief, 12 post-death grief, and 6 service use; eight were longitudinal. 17% met the Prolonged Grief Disorder criteria pre-death (n = 1) and 6-26% (n = 4) of participants met the Complicated Grief criteria post-death. Being a spouse, less educated, caring for somebody with advanced dementia, and greater burden and depression were associated with higher pre-death grief. Lower education level and depression were predictive of higher post-death grief. Pre-death factors found to influence post-death grief were grief and depression. Limited service use evidence was reported.

CONCLUSION

Awareness of characteristics which increase the likelihood of higher grief can help identify those in need of support. Future research should focus on what supports or services are beneficial to grief experiences.

[Anticipatory grief in family caregivers of persons with dementia. Psychosocial correlates and impact on caregiver's health: A literature review]

INTRODUCTION

Taking care of a relative with dementia may be linked to negative consequences for the caregiver. One of the processes that can be experienced is anticipatory grief, that is defined as the feelings of pain and loss that appear in the caregiver before the death of the person cared for.

OBJECTIVES

The review aimed to conceptualize anticipatory grief in this population, to study the related psychosocial variables, and to know the repercussions for the health of the caregiver.

METHOD

A systematic search was made under the directives of PRISMA statement in the ProQuest, PubMed, Web of Science (WOS), and Scopus databases, including studies published in the last 10 years (2013-2023).

RESULTS

A total of 160 articles were obtained, 15 being finally selected. It is observed that anticipatory grief is defined as an ambiguous process since it appeared before the death of the sick family member. Being a female caregiver, spouse of a family member with dementia, having a closer relationship with him and/or having an important responsibility in care, are associated with a greater chance of experiencing anticipatory grief. In relation to the person cared for, if he or she is in a severe phase of the disease, is younger, and/or presents problematic behaviours, there is also greater anticipatory grief in the family caregiver. Anticipatory grief has a significant impact on caregivers' physical, psychological, and social health, being associated with greater burden, depressive symptomatology, and social isolation.

CONCLUSIONS

Anticipatory grief turns out to be a relevant concept in the context of dementia, being necessary to include it in intervention programs for this population.

Factors affecting nurses' willingness and competency to provide anticipatory grief counseling for family caregivers of patients with terminal cancer

AIM AND OBJECTIVES

To explore factors associated with nurses' willingness and competency to provide anticipatory grief counselling for the family caregivers of patients with terminal cancer.

BACKGROUND

Family caregivers often experience anticipatory grief due to the imminence of a loved one's death. However, few studies have identified factors associated with nurses' willingness or competency to provide anticipatory grief counselling for the family caregivers of patients with terminal cancer.

METHODS

This descriptive correlational study recruited a convenience sample of nurses from cancer-related wards at a regional teaching hospital in Taiwan. The Anticipatory Grief Counseling Willingness Scale and Anticipatory Grief Counseling Competency Scale were employed. This cross-sectional study followed the STROBE checklist.

RESULTS

The nurses' average scores for willingness and competency to provide anticipatory grief counselling for the family caregivers of patients with terminal cancer were 44.28 ± 8.36 and 171.84 ± 30.83, respectively. Multivariate linear regression revealed that interest in participating in anticipatory grief counselling for the family caregivers of patients with terminal cancer was significantly associated with the nurses' willingness to provide such counselling. Similarly, their willingness to provide such counselling was significantly associated with their counselling competency.

CONCLUSIONS

Nurses' willingness and competency to provide anticipatory grief counselling for the family caregivers of patients with terminal cancer can be enhanced through in-service education programmes, including bedside teaching and scenario simulation.

RELEVANCE TO CLINICAL PRACTICE

To improve nurses' competency in anticipatory grief counselling for the family caregivers of patients with terminal cancer, factors related to nurses' willingness to provide such grief counselling must be addressed. Diverse strategies of in-service education can be adopted to promote nurses' competency in anticipatory grief counselling.

Assessment of anticipatory grief in informal caregivers of dependants with dementia: a systematic review

OBJECTIVES

Informal caregivers of dependants with dementia commence their bereavement experience long before the physical death of their dependant, a process referred to as "anticipatory grief". This represents an ambiguous state that has been acknowledged as a measurable variable among informal caregivers. The use of assessment tools for the identification of anticipatory grief is important for timely intervention to promote well-being and positive bereavement experiences. The aim of this systematic review is to identify and examine existing tools for assessing anticipatory grief among caregivers of dependants with dementia.

METHODS

MEDLINE, EMBASE, PsychINFO, CINAHL and Web of Science were searched to July 2021. Studies focusing on the development/evaluation of instruments for measuring anticipatory grief in dementia caregivers were eligible. The quality of each measurement was graded as positive, fair, poor or no information based on defined criteria.

RESULTS

100 studies were identified. 33 papers were selected for full-text assessment and 12 papers met the eligibility criteria. Seven assessment tools were identified for measurement of pre-death grief caregivers - the Anticipatory Grief Scale (AGS), Marwit-Meuser Caregiver Grief Inventory (MM-CGI), MM-CGI-short-form (MM-CGI-SF), MM-CGI-brief (MM-CGI-BF), Prolonged Grief Scale (PG-12), Caregiver Grief Scale (CGS) and Caregiver Grief Questionnaire (CGQ). Based on content/construct validity, internal consistency and test-retest reliability the MM-CGI/MM-CGI-SF scored highest for quality followed by the CGS.

CONCLUSION

Anticipatory grief in dementia has multiple facets that can be measured using self-scoring questionnaires. Our findings provide support for different measures of anticipatory grief. Further research is needed for the evaluation of the responsiveness and interpretability of these instruments.

Explaining caregiver burden in a large sample of UK dementia caregivers: The role of contextual factors, behavioural problems, psychological resilience, and anticipatory grief

OBJECTIVES

Dementia caregiver burden is a significant public health concern, affecting both the wellbeing of caregivers and their care-recipients. This study investigated a range of variables associated with caregiver burden in a large sample of UK dementia caregivers. Clinical characteristics and novel psychological constructs were used - including anticipatory grief and psychological resilience. Anticipatory grief refers to the process of experiencing loss prior to the death of a significant person.

METHOD

Caregivers of persons with dementia (N = 530) completed a survey obtaining the Zarit-Burden Interview (ZBI-SF) and other psychological and demographic/caregiving-related factors.

RESULTS

Findings illustrate that 71% of the sample experienced high levels of caregiver burden and around 95% met the criteria for clinically significant levels of burden. A regression model explained 49% of the variance in subjective caregiver burden; contextual factors (care-recipients living situation, frequency of caregiving), behavioural challenges in the care-recipient (memory-related problem behaviours), caregiver psychological resilience and caregiver anticipatory grief (heartfelt long & sadness, worry & felt isolation) were all significant variables. Caregiver anticipatory grief, followed by psychological resilience, had the strongest association with burden.

CONCLUSION

Caregiver anticipatory grief and psychological resilience, have a significant interaction with the clinical presentation of the dementia sufferer in explaining subjective caregiver burden. More grief and resilience-focused interventions targeting both the practical and emotional challenges are imperative to reduce burden and thus to ensure caregiver wellbeing.

Exploratory factor analysis of the caregiver grief inventory in a large UK sample of dementia carers

OBJECTIVES

Anticipatory grief (AG) is the process of experiencing loss prior to the death of a significant person. Coping with this multifaceted experience in the context of dementia caregiving is a relatively novel, yet significant area in caregiving literature. The Marwit-Meuser Caregiver Grief Inventory (MM-CGI) and its abbreviated MM-CGI-Short-Form (MM-CGI-SF) is the most widely used scale measuring AG. However, limited research has employed robust analytical strategies to assess its dimensional structure. This study employed contemporary factor analytical techniques to assess the dimensional structure of the MM-CGI/SF.

METHOD

Caregivers of persons with dementia (n = 508) completed a survey containing MM-CGI/SF and other associated psychological measures. Exploratory factor analysis was employed to compare eight alternative factor analytical models to determine the optimal model. Internal-consistency reliability was assessed by Cronbach's α and construct validity was assessed by Spearman's correlation-coefficient.

RESULTS

The best fitting model was the MM-CGI-SF three factor model (Personal Sacrifice and Burden, Heartfelt Sadness and Longing and Worry and Felt Isolation). The MM-CGI-SF three factor model demonstrated internal consistency reliability and factor correlations with associated psychological measures indicated construct validity.

CONCLUSION

The MM-CGI-SF three factor model demonstrated adequate fit and utility, however, the Worry and Felt Isolation subscale needs further replication and revision to assess its dimensionality. The MM-CGI-SF is the more useful tool due to its brevity and better model fit.

Measuring Anticipated Loss of Aging Parents: Development of the Parent Anticipatory Loss Scale

BACKGROUND AND PURPOSE

Research indicates non-caregiving adult children with aging parents experience anticipatory loss for parents that consists of feelings of gratitude, sadness, and worry. The purpose of this research was to develop the Parent Anticipatory Loss Scale.

METHODS

Interview data from non-caregiving adult children and extant literature formed the basis for creating items measuring three components of Parent Anticipatory Loss. Expert content validity was established prior to administering the survey to a convenience sample of non-caregiving (N = 315), mostly Caucasian (n = 182, 57.6%) men (n = 202, 63.9%). The crowdsourcing platform, Mechanical Turk, provided an innovative method for sample recruitment.

RESULTS

Questions were eliminated as indicated during analysis, yielding a 19-item scale (α = 0.93) with three subscales (α = 0.897 for Gratitude, α = 0.841 for Sadness, and α = 0.833 for Worry). Exploratory factor analysis (Varimax rotation) showed gratitude accounted for 46% of the variance, with sadness and worry accounting for 9.5% and 5.3%.

CONCLUSIONS

The Parent Anticipatory Loss scale demonstrates good initial reliability and validity and can be used to measure anticipatory loss for aging parents. Further testing with cross cultural samples is warranted.

The Longitudinal Effects of Caregiver Grief in Dementia and the Modifying Effects of Social Services: A Prospective Cohort Study

BACKGROUND

Caregivers of persons with dementia (PWD) can experience loss and grief long before the death of the PWD, with such caregiver grief postulated to affect the well-being of the PWD-caregiver dyads. However, the longitudinal effects of caregiver grief and the moderating effects of social services are not yet clear.

OBJECTIVES

We investigated the longitudinal effects of caregiver grief on caregiver depression, caregivers' quality of life (QoL), and caregivers' perceived positive aspects of caregiving (PAC); and examined potential effect modification of social service utilization (dementia care services, caregiver programs, and paid caregivers).

DESIGN AND SETTING

A prospective cohort study with three time points of assessments (at 0, 6, and 12 months).

PARTICIPANTS

Family caregivers of community-dwelling PWD (n = 178).

MEASUREMENTS

At time point 1 (baseline), participants completed questionnaires that captured caregiver grief, burden, and social service utilization. Outcomes that were captured over time were: depression (time points 1-3), QoL (time point 2), and PAC (time point 3). Caregiver grief as well as interaction terms with social service utilization were included in Tobit regression to examine the association with outcomes.

RESULTS

After accounting for the effect of caregiver burden, caregiver grief remained associated with depressive symptoms (P < .001) and poorer QoL (P < .001). However, compared with burden, grief contributed to larger magnitudes of the adverse effects. Grief, not burden, was associated with less PAC (P = .006 and P = .746, respectively). In contrast, burden, not grief, was associated with poorer physical health (P = .010 and P = .110, respectively). Dementia care services attenuated the effect of burden but not grief; caregiver programs did not affect burden but appeared to aggravate the effect of grief; and paid caregivers attenuated the effect of burden, and partially attenuated the effect of grief.

CONCLUSION

Caregiver grief has an impact on dementia caregivers, likely through a distinct mechanism from that of caregiver burden. However, prevailing social services may not be sufficient to address grief, highlighting the need to further train care workers in this respect. J Am Geriatr Soc 68:2348-2353, 2020.

The three dimensions of caregiver grief in dementia caregiving: Validity and utility of the subscales of the Marwit-Meuser Caregiver Grief Inventory

BACKGROUND

The experience of grief in family caregivers as they provide care for persons with dementia is often overlooked. The Marwit-Meuser Caregiver Grief Inventory (MM-CGI) is one among the few scales that capture such experiences. In a recent study, MM-CGI was found to contain three subscales identifying dimensions of loss in caregivers-Personal-Sacrifice Burden (PSB), Heartfelt Sadness, Longing, and Worry (HSLW), and Felt Isolation (FI). We aimed to evaluate the validity and utility of these dimensions in a multiethnic Asian population.

METHODS

Family caregivers (n = 394) completed MM-CGI and scales assessing caregiver burden, depression, and gains. Internal consistency reliability was examined using Cronbach α; test-retest reliability using intraclass correlation coefficient; and construct validity using Pearson correlation coefficient. The utility of the MM-CGI dimensions was evaluated by comparing caregivers with high subscale scores across dementia stages and caregiving relationship.

RESULTS

The three dimensions of MM-CGI exhibited adequate internal consistency, test-retest reliability, construct validity, and known-group validity. PSB correlated most strongly with caregiver burden (r = 0.78); HSLW with caregiver depression (r = 0.75); and FI with caregiver burden and caregiver depression (r = 0.60, respectively). Caregivers with high total grief scores tended to experience most difficulty with HSLW (90.8%), followed by PSB (75.4%) and FI (46.2%). The three dimensions also increased across the dementia stages, with FI higher in mild dementia, PSB higher in moderate dementia, and HSLW higher in severe dementia. Spousal caregivers experienced most difficulty in HSLW, whereas children caregivers experienced similar levels of difficulty across the dimensions.

CONCLUSIONS

The three dimensions of MM-CGI captured distinct aspects of caregiver grief in a multiethnic Asian population and would enable more individualized assessments and interventions for caregiver grief.

A Brief, 6-Item Scale for Caregiver Grief in Dementia Caregiving

PURPOSE

Caregivers of persons with dementia (PWD) can experience loss and grief long before the death of the person. Although such experience of caregiver grief is measurable, available scales (such as the Marwit-Meuser Caregiver Grief Inventory, MM-CGI) are lengthy and have overlaps with other caregiving constructs. We developed a briefer scale that captures the essence of caregiver grief-with comparable psychometric properties and total score to MM-CGI, as well as less overlap with other caregiving constructs.

DESIGN AND METHODS

Family caregivers of community-dwelling PWD (N = 394) completed questionnaires containing MM-CGI and other caregiving scales. Initially, we split the study samples into two -the derivation sample (n = 179) was used to develop a brief scale that best predicts MM-CGI (using the best-subset approach with tenfold cross-validation), whereas the validation sample (n = 215) verified its actual performance in predicting MM-CGI. Thereafter, we evaluated the derived scale in its reliability and validity, and mapped its scores to MM-CGI using the equipercentile equating method.

RESULTS

We derived a 6-item scale, which explained 84.1% of the variability in MM-CGI and had area under the receiver operating characteristic curve of .96 in discriminating high caregiver grief (95% CI: .94-.99). It had single dimension in confirmatory factor analysis (comparative fit index = .98; Tucker-Lewis index = .97) and maintained good psychometric properties similar to those of MM-CGI, while showing lower correlation with caregiver burden and depression. It also had scores that could be mapped to MM-CGI with reasonable precision.

IMPLICATIONS

We developed the first brief scale with less than 10 items that can conveniently and accurately measure caregiver grief, which opens the way for grief-related interventions in clinical care. Notably, this 6-item scale was developed using rigorous methods and demonstrated consistent evidence of capturing the essence of caregiver grief.

Caregiving burden and mental health problems among family caregivers of people with dementia in rural Uganda

BACKGROUND

Alzheimer's disease and related dementias are associated with increasing health burden in low- and middle-income countries. Less well-recognized is the potential health burden experienced by other affected individuals, such as family caregivers. In this study, we sought to profile the burden of care and its association with symptoms of depression and anxiety among informal caregivers of people living with dementia in rural southwestern Uganda.

METHOD

We conducted a cross-sectional study of 232 family caregivers of people with dementia. The key measured variables of interest were caregiving burden (Zarit Burden Index) and symptoms of depression and anxiety (Depression Anxiety Stress Scales). We fitted multivariable regression models specifying depression and anxiety symptoms as the primary outcomes of interest and caregiving burden as the primary explanatory variable of interest.

RESULTS

Family caregivers of people with dementia experience significant caregiving burden, with each item on the Zarit Burden Index endorsed by more than 70% of study participants. Nearly half [108 (47%)] of caregivers had Zarit Burden Interview scores >60, suggestive of severe caregiving burden. In multivariable regression models, we estimated a statistically significant positive association between caregiving burden and symptoms of both depression [b = 0.42; 95% confidence interval (CI) 0.34-0.49] and anxiety (b = 0.37; 95% CI 0.30-0.45).

CONCLUSION

Family caregivers of people with dementia in rural Uganda experience a high caregiving burden, which is associated with symptoms of depression and anxiety. Interventions aimed at reducing caregiving burden may have important collateral mental health benefits.

Validity and Utility of the Center for Epidemiological Studies Depression Scale for Detecting Depression in Family Caregivers of Persons with Dementia

BACKGROUND/AIMS

The psychometric properties of Center for Epidemiological Studies Depression Scale (CES-D) have never been substantively investigated in caregivers of persons with dementia (PwD). We evaluated the validity and reliability of CES-D for detecting caregiver depression in dementia, and assessed whether CES-D could provide added utility beyond Zarit Burden Interview (ZBI).

METHOD

Family caregivers of community-dwelling PwD (n = 394) completed self-administered questionnaires containing CES-D. Factorial validity was evaluated with confirmatory factor analysis; convergent and discriminant validity with Pearson's correlation coefficient; known-group validity by comparing across key variables; and internal consistency reliability with Cronbach's α. Cohen's κ was used to compare the agreement between those with depression (CES-D ≥16) and those with high caregiver burden (ZBI >60).

RESULTS

CES-D demonstrated convergent, discriminant and known-group validity, consistent with a priori hypotheses. The original four-factor model of CES-D produced the best model-fit indices. Internal consistency reliability was good for the CES-D total scale (α = 0.92), but lower for the Positive affect and Interpersonal problems subscales (α = 0.70-0.74). Forty-five percent of the caregivers had depression as identified by CES-D (95% CI 40-50%), but most of them were not identified by high ZBI scores (κ = 0.16).

CONCLUSIONS

CES-D is a valid and reliable scale for detecting caregiver depression in dementia. It has added utility, beyond that of a caregiver burden scale, in identifying a subgroup of caregivers with depression but not burden. However, two subscales (Positive affect and Interpersonal problems) may require caution in interpretation among non-Caucasian caregivers.

Grief, Mindfulness and Neural Predictors of Improvement in Family Dementia Caregivers

Background: Family dementia caregivers often suffer from an immense toll of grief while caring for their loved ones. We sought to identify the clinical relationship between grief, depression and mindfulness and identify neural predictors of symptomatology and improvement. Methods: Twenty three family dementia caregivers were assessed at baseline for grief, mindfulness and depression, of which 17 underwent functional magnetic resonance imaging (fMRI). During fMRI, caregivers were shown faces of either their dementia-stricken relative or that of a stranger, paired with grief-related or neutral words. In nine subjects, post fMRI scans were also obtained after 4 weeks of either guided imagery or relaxation. Robust regression was used to predict changes in symptoms with longitudinal brain activation (BA) changes as the dependent variable. Results: Grief and depression symptoms were correlated (r = 0.50, p = 0.01), and both were negatively correlated with mindfulness (r = -0.70, p = 0.0002; r = -0.52, p = 0.01). Relative to viewing strangers, caregivers showed pictures of their loved ones (picture factor) exhibited increased activation in the dorsal anterior cingulate gyrus and precuneus. Improvement in grief but not mindfulness or depression was predicted by increased relative BA in the precuneus and anterior cingulate (different subregions from baseline). Viewing grief-related vs. neutral words elicited activity in the medial prefrontal cortex and precuneus. Conclusions: Caregiver grief, depression and mindfulness are interrelated but have at least partially nonoverlapping neural mechanisms. Picture and word stimuli related to caregiver grief evoked brain activity in regions previously identified with bereavement grief. These activation foci might be useful as biomarkers of treatment response.

Development and validation of a simple screening tool for caregiver grief in dementia caregiving

Background

Loss and grief are experienced by caregivers of persons with dementia (PWD), relating to the ambiguous loss of PWD even when they are still alive and the anticipation of future loss related to their physical death. Such experience of caregiver grief is not easily recognized in clinical practice, despite its association with adverse effects such as caregiver burden, caregiver depression and caregivers’ desire to place the PWD in nursing homes. We constructed a simple screening tool – based on factors associated with caregiver grief – to identify caregivers with high grief.

Methods

Spouses or children of community-dwelling PWD (n = 403) completed self-administered questionnaires containing a well-established grief scale and information related to the caregiver and PWD. We split the study sample into two – the derivation sample (n = 300) was used to identify factors associated with grief (using logistic regression) and derive a simple tool based on the number of identified factors; the validation sample (n = 103) evaluated the performance of the tool using the receiver-operating-characteristic-curve-analysis (ROC).

Results

Four key factors were identified by the multivariable regression – more severe dementia (odds ratio, OR 6.9), behavioral problems in PWD (OR 5.0), spousal caregivers (OR 6.0) and daily caregiving (OR 3.0). The screening tool (based on the number of key factors) had an area under ROC of 0.77. At the optimal cut-off of ≥2 key factors, the tool had a sensitivity of 0.91 and a specificity of 0.42.

Conclusions

The identified factors are consistent with current understanding on caregiver grief. They can be easily integrated into the workflow of routine services to screen for caregivers who are more likely to benefit from further grief-related assessment.

Electronic supplementary material

The online version of this article (10.1186/s12877-019-1070-x) contains supplementary material, which is available to authorized users.

Contrasting the risk factors of grief and burden in caregivers of persons with dementia: Multivariate analysis

BACKGROUND

Caregivers of persons with dementia (PWD) can experience loss and grief long before the death of the person. While such phenomenon of pre-death grief (PDG) has been increasingly described, we are uncertain how it can be distinct from the well-studied construct of caregiver burden.

OBJECTIVE

To determine whether there are differences in the risk factors of PDG and caregiver burden to aid in our understanding of the relationship between the two constructs.

METHODS

Spouses or children of community-dwelling PWD were consecutively sampled from two tertiary hospitals. They completed questionnaires containing a PDG scale, a caregiver burden scale, and information related to the caregiver and PWD. Risk factors of PDG and caregiver burden were identified using multivariate regression, within which PDG and caregiver burden scores were jointly included as two separate dependent variables.

RESULTS

We recruited 394 caregivers with a mean age of 53.0 years (SD 10.7), majority were Chinese (86.6%), children caregivers (86.3%), and primary caregivers (70.8%). In the regression analyses, we identified three risk factors which were shared by both PDG and caregiver burden (later stage of dementia, behavioral problems in PWD, and primary caregiving role) and three other risk factors which were unique to PDG alone (younger age of PWD, lower educational attainment of caregivers, and spousal caregiver).

CONCLUSIONS

The different risk factor profiles evidence a distinction between PDG and caregiver burden. They may possibly be distilled into a framework to direct our approach to PDG interventions, which may include using caregiver burden as an opportunity to initiate conversations on grief, exploring the various aspects of losses and encouraging adaptive coping.

Comparing the Effects of Grief and Burden on Caregiver Depression in Dementia Caregiving: A Longitudinal Path Analysis over 2.5 Years

OBJECTIVES

Caregivers of persons with dementia can experience loss and grief long before the death of the person. Although the phenomenon of caregiver grief has been increasingly described, it is uncertain if caregiver grief has independent effects-separate from the well-studied construct of caregiver burden-on adverse outcomes such as caregiver depression. We sought to compare the effects of baseline grief and burden on caregiver depression at baseline and 2.5 years later.

DESIGN AND SETTING

A cohort study with 2.5 years of follow-up.

PARTICIPANTS

Family caregivers of community-dwelling persons with dementia (n = 183).

MEASURES

Participants completed questionnaires with scales that assessed caregiver grief, burden, and depression. Baseline grief and burden scores were included in a path analysis to predict depression at baseline and at 2.5 years.

RESULTS

At baseline, grief and burden had synergistic relationships with each other (P = .012), where the high levels of grief amplified the effect of burden on caregiver depression. Both grief and burden had longitudinal effects on caregiver depression at 2.5 years (P <.001 and P = .047, respectively), albeit with some differences in mechanism; both had effects which were indirectly mediated through baseline depression (P < .001 and P = .002, respectively), but only grief had a direct path toward depression at 2.5 years (P = .030), which was distinct from baseline depression.

CONCLUSIONS AND IMPLICATIONS

The findings highlight the need to identify and address caregiver grief in dementia services. They present a window of opportunity to improve caregiving outcomes, especially during the "latent phase" when caregivers encounter loss and grief but have yet to fully experience the debilitating effects of depression.

Reappraising the Efficacy and Acceptability of Multicomponent Interventions for Caregiver Depression in Dementia: The Utility of Network Meta-Analysis

Background

Previous meta-analyses have demonstrated the efficacy of interventions for caregiver depression in dementia. However, they generally lumped the interventions together without accounting for the multicomponent nature of most interventions. It is unknown which combination of components contributed to the efficacy and should be implemented in clinical practice.

Objectives

To reappraise the interventions for caregiver depression from a recent systematic review, and evaluate whether a network meta-analytic approach offers additional insight into the efficacy and acceptability of multicomponent interventions.

Research Design and Methods

This study built upon a recent systematic review which identified 33 RCTs on caregiver depression from multiple databases (Medline, EMBASE, CENTRAL, PsycINFO, PSYNDEX). The 33 RCTs had different combinations of components serving at least one of the three key functions: addressing the care needs of persons with dementia (“CN”), addressing caregiving competency (“CC”), and providing emotional support for loss and grief (“ES”). A Bayesian network meta-analysis was conducted to compare the efficacy and all-cause attrition across different combinations of interventions.

Results

CN–CC combination was significantly more efficacious than treatment-as-usual (standardized mean difference in depression scores, SMD = −0.25, 95% credible interval [CrI] = −0.41 to −0.08) and marginally better than CN (SMD = −0.43, 95% CrI = −0.85 to −0.00). While none of the interventions clearly had both high efficacy and acceptability, three combinations of interventions (CC, CN–CC, and CN–CC–ES) had a reasonable balance between efficacy and acceptability.

Discussion and Implications

Although interventions for caregiver depression in dementia are effective in general, the different components of interventions may not share the same efficacy and acceptability. In implementing interventions, policymakers may consider addressing CC first, introducing CN in a graded manner, and providing ES only when indicated. Future studies may also consider using network meta-analysis to gain additional insights on how to implement multicomponent interventions in geriatric care.

Detecting pre-death grief in family caregivers of persons with dementia: measurement equivalence of the Mandarin-Chinese version of Marwit-Meuser caregiver grief inventory

Background

Pre-death grief (PDG) is a key challenge faced by caregivers of persons with dementia (PWD). Marwit-Meuser Caregiver Grief Inventory (MM-CGI) and its abbreviated MM-CGI-Short-Form (MM-CGI-SF) are among the few empirically-developed scales that detect PDG. However, they have not had a Mandarin-Chinese version even though Chinese-speaking populations have among the largest number of PWD. We produced a Mandarin-Chinese version of MM-CGI and evaluated whether it had equivalent scores and similar psychometric properties to the English version.

Methods

We produced the Chinese MM-CGI through the methods of forward-backward translation and cognitive debriefing. Then, we recruited family caregivers of PWD (n = 394) to complete either the Chinese (n = 103) or English (n = 291) version. The two versions were compared in their score-difference (adjusting for potential confounders using multiple linear regression), internal-consistency reliability (using Cronbach’s α) and test-retest reliability (using intraclass correlation-coefficient), known-group validity (based on the relationship with the PWD and stage of dementia) and construct validity (using Spearman’s correlation-coefficient).

Results

The two versions showed similar mean scores, with the adjusted score-difference of 1.2 (90% CI -5.6 to 7.9) for MM-CGI and − 0.4 (90% CI -2.9 to 2.1) for MM-CGI-SF. The 90% CI for adjusted score-difference fell within predefined equivalence-margin (±8 for MM-CGI and ± 3 for MM-CGI-SF) and indicated equivalence of the scores. The two versions also demonstrated similar characteristics in reliability and validity.

Conclusions

The Chinese MM-CGI opens the way for PDG assessment and intervention among Chinese-speaking caregivers. Establishing its measurement equivalence with the English version paves the way for cross-cultural research on PDG in dementia caregiving.

Electronic supplementary material

The online version of this article (10.1186/s12877-018-0804-5) contains supplementary material, which is available to authorized users.