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The impact of stressful life events as a risk factor of dementia diseases is inconclusive. We sought to determine whether stressful negative life events are associated with incidental dementia in a population-based study with long-term follow-up. We also tested the hypothesis that the occurrence of positive life events could mitigate or overcome the possible adverse effects of negative life events on dementia conversion.
Methods:
The study involved 2,462 dementia-free participants aged 55 years and older. Information on life events was ascertained at baseline from a comprehensive Life Event Inventory, which included 56 questions about specific life events. For each life event, the emotional impact (both positive and negative) and emotional adjustment were asked for.
Results:
During follow-up, 423 participants developed dementia; of these, 240 developed Alzheimer's disease (AD). Cox regression analysis showed no association between the total number of negative life events and the incidence of dementia when adjusted solely for age and gender (hazard ratio = 0.97, 95% CI = 0.92–1.02), or with multiple adjustments for a range of covariates (hazard ratio = 0.96, 95% CI = 0.91–1.01). Similarly, neither emotional impact nor emotional adjustment to these life events was associated with incident dementia. A separate analysis of AD did not alter the results.
Conclusions:
The result of this population-based study finds no association between negative or positive life events and dementia. Accordingly, our results reject the hypothesis that stressful life events trigger the onset of dementia diseases.
The consequences of co-occurring persistent loneliness and late life depression are yet unknown. The aim of this study was to get a deeper insight into the mental health consequences of loneliness in older persons with depressive symptoms and their perspectives of emotional distress by using a mixed-methods study design.
Methods:
Two hundred and forty nine community-dwelling older persons with depressive symptoms according to the Patient Health Questionnaire-9 (≥6) were included. A validated cut-off score on the Loneliness Scale was used to distinguish lonely elders from elders who were not lonely. Quantitative and qualitative data were used to examine differences in mental health and perspectives on emotional distress between lonely and not lonely older persons with depressive symptoms.
Results:
Loneliness was highly prevalent among older persons with depressive symptoms (87.8%). Lonely people suffered from worse mental ill-health (e.g., more severe depressive symptoms, more often a depressive disorder and a lower quality of life) compared to not lonely individuals. Depressive symptoms were regarded as a logical consequence of loneliness. Lonely people perceived little command over their situation: causes of loneliness were attributed externally to perceived deficits in their social networks and they mainly expressed the need to be listened to.
Conclusion:
Our findings underline the importance of paying considerable attention to (severe) loneliness in older adults with depressive symptoms given its high prevalence and serious mental health consequences. Future studies should look into whether addressing loneliness when discussing depressive symptoms in clinical practice may provide an opportunity to better adjust to older persons’ depression perceptions and might therefore improve care utilization.
The Hospital Anxiety and Depression Scale (HADS) has established use with older adult populations in New Zealand but few studies have evaluated its psychometric properties. Research with the psychometric properties of the HADS in elderly populations has primarily used correlational methods that do not allow for the effects of measurement error to be observed. The hypothesized tripartite model of anxiety and depression within the HADS was evaluated using confirmatory factor analysis (CFA) methods.
Methods:
Overall, 203 community-dwelling older adults who were recruited from older adult community groups completed the HADS. Competing two- and three-factor structures were trialled using CFA.
Results:
A three-factor model indicated a lack of differentiation between factors and poor clinical utility and was rejected in favor of a two-factor model. Significant correlations were observed between the anxiety and depression factors on the two-factor model, but it was considered to have validity for older adult samples. Good internal consistency was found for the HADS.
Conclusions:
A two-factor model of the HADS was favored due to the lack of differentiation between factors on the three-factor model, and the higher clinical utility of a two-factor solution. The validity of the HADS may be limited by over-diagnosing anxiety in non-clinical populations. It is recommended that the HADS be used to measure change over time through treatment and not be used as a diagnostic tool until future research establishes appropriate norms and cut-offs.
The aim of the study was to develop the Japanese versions of Executive Interview (J-EXIT25) and Executive Clock Drawing Task (J-CLOX) and to evaluate the aspects of executive function that these two tests will be examining.
Methods:
The concurrent validity and reliability of J-EXIT25 and J-CLOX were first examined in all participants (n = 201). Next, the relationship between the two tests was examined using receiver operating characteristic (ROC), correlation, and regression analyses in healthy participants (n = 45) and participants with mild cognitive impairment (n = 36) and dementia (n = 95).
Results:
Satisfactory concurrent validity and reliability of J-EXIT25 and J-CLOX were shown. ROC analysis indicated that J-EXIT25 and J-CLOX1 were superior to the Frontal Assessment Battery, but inferior to the Mini-Mental State Examination (MMSE), in discriminating between non-dementia and dementia. J-EXIT25, J-CLOX1, and J-CLOX2 scores were significantly correlated with age, scores on the MMSE, Instrumental Activities of Daily Living (IADL) and Physical Self-Maintenance Scale (PSMS), and care level. In stepwise regression analyses of IADL scores, MMSE and J-EXIT25 were significantly independent predictors in men, and MMSE, age, and J-CLOX1 were significantly independent predictors in women. J-EXIT25, MMSE, and J-CLOX1 were significantly independent predictors in stepwise regression analysis of PSMS scores, and J-EXIT25 was the only significantly independent predictor in stepwise regression analysis of care level.
Conclusions:
J-EXIT25 and J-CLOX are valid and reliable instruments for assessment of executive function in older people. The present results suggest that these tests have common and distinct psychometric properties in the assessment of executive function.
Health is an important aspect of individuals’ lives as they age. The aim of this study was to examine the relationship of sociodemographic factors, diagnosed chronic health conditions, and current depression with attitudes to aging in midlife.
Methods:
A cross-sectional baseline analysis was conducted on the first 300 participants from the Canterbury Health, Ageing and Life Course study in New Zealand, a stratified randomized community longitudinal study of adults recruited between 49 and 51 years. Attitudes were measured using the Attitudes to Aging Questionnaire (AAQ) and analyzed with a range of prevalent diagnosed chronic conditions, current depression, and sociodemographic variables.
Results:
Individuals perceived their physical aging more negatively after a diagnosis of hypertension, arthritis or asthma. Diagnosed lifetime depression and anxiety, and current depression, showed strong relationships with attitudes to aging across domains. After controlling for sociodemographic factors and current depression, individuals with diagnosed hypertension, arthritis, asthma, lifetime depression or anxiety continued to report significantly more negative attitudes to aging. Current depression showed the strongest associations with attitudes to aging and mediated relationships of health on attitudes to aging.
Conclusions:
Physical and mental health are related to attitudes to aging. Most chronic conditions examined are significantly associated with attitudes toward aging in the physical change domain. Diagnosed lifetime depression and anxiety, and current depression, are negatively related across attitudinal domains. Individuals can feel positive about aging while experiencing poorer health, but this is more difficult in the presence of low mood.
This study examined the relationship of cognitive function and benzodiazepine/nonbenzodiazepine hypnotics (BZD/nonBZD) and other risk factors in a national sample of Taiwan's elderly diabetic patients.
Methods:
Data were drawn from the “2005 Taiwan National Health Interview Survey (NHIS)”, a population-based study of a national sample of adults aged 65 years and older. A total of 653 participants were included in this study. The Mini-Mental State Examination (MMSE) was used to evaluate patient's cognitive function for which the cut-off score is education-adjusted.
Results:
There were 130 participants left in the diabetic group and 523 participants in the control group. The average age was 74.2 and 73.3 respectively. The rate of cognitive dysfunction in DM and non DM participants was 11.5% (15/130) and 8.4% (44/523). Compared with those without diabetes in multivariate logistic regression, the odds ratio of cognitive impairment was 1.87-fold higher for diabetic patients (95% CI 1.04–3.61) after adjusting for sociodemographic characteristics, comorbidities, and BZD/nonBZD. Other factors were not significant. We performed an additional logistic analysis for which the odds ratio of cognitive impairment in diabetic patients with BZD/nonBZD was significantly increased to 2.41 (95% CI 1.08–5.40) than for patients without diabetes and BZD/nonBZD.
Conclusion:
In our research, cognitive dysfunction was associated with diabetes. BZD/nonBZD may have conferred additional risk of cognitive impairment in our elderly diabetic patients. We should consider examining the mental function of DM patients regularly and try our best to avoid potentially inappropriate medications (PIMs).
Few empirical studies compare the ability of prominent measures of behavioral and psychological symptoms of dementia (BPSD) to explain key caregiver outcomes. We compared the respective abilities of the Neuropsychiatric Inventory (NPI) and the Revised Memory and Behavior Problems Checklist (RMBPC) to detect associations between BPSD and caregiver depressive symptoms. Our results may facilitate measurement decisions for researchers and clinicians.
Methods:
The NPI and the RMBPC, which measure BPSD frequency and corresponding caregiver appraisals, were administered to 164 caregivers of persons with dementia to compare the measures’ ability to explain caregiver depressive symptoms. Depressive symptoms were measured using the Geriatric Depression Scale (GDS), and caregiver burden was measured (using the Zarit Burden Interview) as a mediator between BPSD frequency/appraisal and caregiver depressive symptoms. Path analysis using Mplus facilitated the comparison between the RMBPC and the NPI.
Results:
Significant indirect associations were present when NPI frequency, NPI appraisal, RMBPC frequency, and RMBPC appraisal were modeled separately with burden and depressive symptoms, although indirect relationships are not associated with increases in R2. Only RMBPC appraisal produced both a significant direct association with depressive symptoms and a significant increase in R2 when modeled separately (β = 0.24, p < 0.01; ΔR2 = 0.04, p < 0.05). When all independent variables were modeled together, only RMBPC appraisal demonstrated significant direct (β = 0.23, p < 0.01) and indirect associations.
Conclusion:
The RMBPC might be more suitable than the NPI in studies measuring BPSD to explain key caregiver outcomes such as depressive symptoms.
Chronic Obstructive Pulmonary Disease (COPD) can be highly incapacitating, imposing a significant burden on family members, however, limited research has been conducted on psychological health of family carers. Thus, this study examined anxiety and depression symptoms in family carers of people with COPD and their predictors.
Methods:
A cross-sectional study was conducted with family carers and respective patients with COPD. The caregiving situation and the perceived burden, through the Carers’ Assessment of Difficulties Index, were collected from family carers. Patients’ COPD severity and activities limitation were assessed. The Hospital Anxiety and Depression Scale (HADS) was used to assess anxiety and depression symptoms in family carers and patients. Scores ≥8 were considered clinically significant.
Results:
A total of 203 family carers (58.2 ± 14.8 years old; 75.4% female) and respective patients with COPD (69.2 ± 11.5 years old; 36.5% female) were included. Clinically significant anxiety symptoms (HADS-anxiety ≥8) were present in 63.5% (n = 129) of family carers, depression symptoms (HADS-depression ≥8) were in 34% (n = 69) and both were in 27.1% (n = 55). Perceived burden [odds ratio (OR) 1.04, 95% confidence intervals (CI) = 1.01–1.06; 1.05, 95% CI = 1.03–1.07] and patients’ activities limitation (OR 1.32, 95% CI = 1.01–1.79; 1.41, 95% CI = 1.01–1.96) were significant predictors of anxiety and depression symptoms. Anxiety symptoms were also predicted by female gender (OR 0.33, 95% CI = 0.16–0.66) and depression symptoms by older age (OR 1.03, 95% CI = 1.01–1.06).
Conclusion:
Family carers of patients with COPD experience anxiety and depression symptoms. Perceived burden, female gender, older age, and patient's activities limitation were predictors of these distressing symptoms. These findings highlight the need to address family carers’ needs, namely by investigating the effectiveness of supportive interventions on family's psychological health.
Small-scale, home-like care environments are increasingly implemented in institutional nursing care as a model to promote resident-directed care, although evidence on its effects is sparse. This study focuses on the effects of small-scale living facilities on the behavior of residents with dementia and use of physical restraints and psychotropic drugs.
Methods:
A quasi-experimental study was conducted comparing residents in two types of long-term institutional nursing care (i.e. small-scale living facilities and traditional psychogeriatric wards) on three time points: at baseline and follow-ups after six and 12 months. Residents were matched at baseline on cognitive and functional status to increase comparability of groups at baseline. Nurses assessed neuropsychiatric and depressive symptoms, agitation, social engagement, and use of physical restraints using questionnaires. Psychotropic drug use was derived from residents’ medical records.
Results:
In total, 259 residents were included: 124 in small-scale living facilities and 135 controls. Significantly fewer physical restraints and psychotropic drugs were used in small-scale living facilities compared with traditional wards. Residents in small-scale living facilities were significantly more socially engaged, at baseline and after six months follow-up, and displayed more physically non-aggressive behavior after 12 months than residents in traditional wards. No other differences were found.
Conclusions:
This study suggests positive effects of small-scale living facilities on the use of physical restraints and psychotropic drugs. However, the results for behavior were mixed. More research is needed to gain an insight on the relationship between dementia care environment and other residents’ outcomes.
The knowledge base regarding the pathogenesis of postoperative delirium is limited. The primary aim of this study is to investigate whether increased levels of IL-2 and TNF-α are associated with delirium in patients who underwent coronary-artery bypass graft (CABG) surgery with cardiopulmonary bypass (CPB). The secondary aim is to establish whether any association between raised cytokine levels and delirium is related to surgical and anesthetic procedures or mediated by pre-existing conditions associated with raised cytokine levels, such as major depressive disorder (MDD), cognitive impairment, or aging.
Methods:
Patients were examined and screened for MDD and cognitive impairment one day preoperatively, using the Mini International Neuropsychiatric Interview and The Montreal Cognitive Assessment and Trail Making Test Part B. Blood samples were collected postoperatively for cytokine levels.
Results:
Postoperative delirium screening was found positive in 36% (41 of 113) of patients. A multivariate logistic regression revealed that an increased concentration of pro-inflammatory cytokines is associated with delirium, and related to advancing age, preoperative cognitive decline of participants, and duration of CPB. According to receiver operating characteristic analysis, the most optimal cut-off for IL-2 and TNF-α concentrations in predicting the development of delirium were 907.5 U/ml and 10.95 pg/ml, respectively.
Conclusions:
The present study suggests that raised postoperative cytokine concentrations are associated with delirium after CABG surgery. Postoperative monitoring of pro-inflammatory markers combined with regular surveillance may be helpful in the early detection of postoperative delirium in this patient group.
No validated patient-reported outcome measure (PROM) exists specifically to assess quality of life in mild cognitive impairment (MCI); we report a study conducted to develop such a measure.
Methods:
Semi-structured in-depth interviews were carried out with 23 people with MCI in order to determine items for a draft questionnaire. These interviews were audio-recorded, transcribed, and content analyzed. The draft questionnaire was refined following feedback from a focus group. 280 questionnaires were posted to subjects recruited from memory clinics and research databases, the response rate was 56% i.e. 146 questionnaires were included in the final analysis. The completed questionnaires were analyzed using factor analytic techniques to produce the final measure; construct validity was assessed by correlation with a generic patient-reported outcome measure, the SF-12v2.
Results:
Factor analysis produced a 13-item measure tapping two domains of patient-reported quality of life (“Emotional Effects” and “Practical Concerns”). Internal consistency reliability was high for both domains (α was 0.91 and 0.85 respectively). Both dimensions were highly and significantly correlated with the Mental Component Summary score of the SF-12v2 (“emotional effects” ρ = −0.43, p < 0.001 and “practical concerns” ρ = −0.56, p < 0.001).
Conclusions:
The Mild Cognitive Impairment Questionnaire (MCQ) is a 13-item measure developed specifically to measure patient-reported outcomes in people with MCI. It was created on the basis of patient report and has been shown to have good psychometric properties. It is likely to prove valuable in the evaluation of treatment regimes in this patient group.
Trait emotional intelligence (trait EI) is a personality dimension related to affect that has been shown to predict psychopathology. The objective of the present study was to examine the predictive validity of trait EI in explaining anxiety symptoms in family carers of people with dementia.
Methods:
A cross-sectional survey was conducted with a convenience sample of 203 dementia family caregivers. We used the Trait Emotional Intelligence Questionnaire – Short Form (TEIQue-SF) to measure trait EI in carers. The predictive validity of the scale in explaining anxiety was tested via regression analysis.
Results:
Bivariate correlational analysis indicated that lower levels of trait EI were related to higher perceived burden, higher anxiety and depression, and poorer self-rated health in carers. Multiple regression analyses indicated that trait EI was a significant predictor of anxiety symptoms after accounting for known factors influencing outcomes for caregivers. Trait EI also showed strong predictive validity in relation to psychosocial outcomes in carers.
Conclusions:
Trait EI plays an important role in predicting anxiety in dementia caregivers. Theoretical models and interventions aimed at carers of people with dementia should take into account aspects of personality.
Behavioral and psychological symptoms of dementia (BPSD) are often considered to be the greatest challenge in dementia care, leading to increased healthcare costs, caregiver burden, and placement into care facilities. With potential for pharmacological intervention to exacerbate behaviors or even lead to mortality, the development and rigorous testing of non-pharmacological interventions is vital. A pilot of the Tailored Activities Program (TAP) for reducing problem behaviors in people with dementia was conducted in the United States with promising results. This randomized trial will investigate the effectiveness of TAP for reducing the burden of BPSD on persons with dementia and family caregivers within an Australian population. This trial will also examine the cost-effectiveness and willingness to pay for TAP compared with a control group.
Methods:
This randomized trial aims to recruit 180 participant dyads of a person with dementia and their caregivers. Participants will have a diagnosis of dementia, exhibit behaviors as scored by the Neuropsychiatric Inventory, and the caregiver must have at least 7 h per week contact. Participants will be randomly allocated to intervention (TAP) or control (phone-based education sessions) groups, both provided by a trained occupational therapist. Primary outcome measure will be the revised Neuropsychiatric Inventory – Clinician rating scale (NPI-C) to measure BPSD exhibited by the person with dementia.
Conclusions:
This trial investigates the effectiveness and cost-effectiveness of TAP within an Australian population. Results will address a significant gap in the current Australian community-support base for people living with dementia and their caregivers.
The prescription of antidepressants in nursing homes has increased markedly since the introduction of SSRIs, while at the same time depressive symptoms often go unrecognized and untreated. The aim of this study was to examine whether depression among residents in nursing homes is treated adequately.
Methods:
A sample of 429 participants from 11 Swedish nursing homes was selected and was assessed with the Cornell Scale for Depression in Dementia (CSDD) and using medical records and drug prescription data. For 256 participants a follow-up assessment was performed after 12 months.
Results:
The prevalence of depression, according to medical records, was 9.1%, and the prevalence of CSDD score of ≥8 was 7.5%. Depression persisted in more than 50% of cases at the 12-month follow-up. Antidepressants were prescribed to 33% of the participants without a depression diagnosis or with a CSDD score of <8. 46.2% of all participants were prescribed antidepressants. 14% of the participants without a depression diagnosis or with a CSDD score of <8 had psychotropic polypharmacy. 15.2% of all participants had psychotropic polypharmacy, which persisted at the 12-month follow-up in three-quarters of cases.
Conclusion:
The prescription of antidepressants in frail elderly individuals is extensive and may be without clear indication. The clinical implication is that there is a need for systematic drug reviews at nursing homes, paying special attention to the subjects which are on antidepressants.
Korsakoff's syndrome (KS) is a neuropsychiatric disorder characterized by severe amnesia. Quality of life (QoL) is becoming an increasingly used outcome measure in clinical practice but little is known about QoL in KS and how it may change over time. The purpose of this study was therefore to assess the QoL in patients with KS at baseline and with a 20-month follow-up.
Methods:
The current study is a longitudinal study on the QoL in patients with KS living in two long-term care facilities for KS patients in the Netherlands. QoL was scored with the proxy-based QUALIDEM scale with a 20-month follow-up.
Results:
Of the 72 KS patients included at baseline, 57 KS patients had a follow-up QoL score (79.2%). On the subscales “Feeling at home,” “Positive affect,” and “Care relationship” of the QUALIDEM, there was a better QoL in the follow-up, although effects were relatively small. Other subscales indicated a stable QoL over time. There were inter-relations between changes in subscales.
Conclusions:
The main finding of this study is that patients with KS on average do show a relatively stable moderate to good QoL despite the severity of the syndrome. On specific subscales, there is a small increase in QoL over time. Results do suggest that prolonged stay in a long-term care facility for KS patients does have a neutral to a positive effect on QoL in KS.
Several studies have suggested that post-traumatic stress disorder (PTSD) is related to adverse health outcomes. There are limited data on PTSD and cancer, which has a long latency period. We investigated the association between World War II (WWII)-related PTSD and subsequent breast cancer (BC) risk among Jewish WWII survivors and examined whether this association was modified by exposure to hunger during WWII.
Methods:
We compared 65 BC patients diagnosed in 2005 through 2010 to 200 population-based controls who were members of various organizations for Jewish WWII survivors in Israel. All participants were born in Europe, lived at least six months under Nazi rule during WWII, and immigrated to Israel after the war. We estimated PTSD using the PTSD Inventory and applied logistic regression models to estimate the association between WWII-related PTSD and BC, adjusting for potential confounders.
Results:
We observed a linear association between WWII-related PTSD and BC risk. This association remained significant following adjustment for potential confounders, including obesity, alcohol consumption, smoking, age during WWII, hunger exposure during WWII, and total number of traumatic life events (OR = 2.89, 95% CI = 1.14–7.31). However, the level of hunger exposure during WWII modified this effect significantly.
Conclusions:
These findings suggest an independent association between WWII-related PTSD and subsequent BC risk in Jewish WWII survivors that is modified by hunger, a novel finding. Future research is needed to further explore these findings.
The prevalence of both type II diabetes mellitus (DM) and cognitive impairment is high and increasing in older adults. We examined the extent to which DM diagnosis was associated with poorer cognitive performance and dementia diagnosis in a population-based cohort of US older adults.
Methods:
We studied 7,606 participants in the National Health and Aging Trends Study, a nationally representative cohort of Medicare beneficiaries aged 65 years and older. DM and dementia diagnosis were based on self-report from participants or proxy respondents, and participants completed a word-list memory test, the Clock Drawing Test, and gave a subjective assessment of their own memory.
Results:
In unadjusted analyses, self-reported DM diagnosis was associated with poorer immediate and delayed word recall, worse performance on the Clock Drawing Test, and poorer self-rated memory. After adjusting for demographic characteristics, body mass index, depression and anxiety symptoms, and medical conditions, DM was associated with poorer immediate and delayed word recall and poorer self-rated memory, but not with the Clock Drawing Test performance or self-reported dementia diagnosis. After excluding participants with a history of stroke, DM diagnosis was associated with poorer immediate and delayed word recall and the Clock Drawing Test performance, and poorer self-rated memory, but not with self-reported dementia diagnosis.
Conclusions:
In this recent representative sample of older Medicare enrollees, self-reported DM was associated with poorer cognitive test performance. Findings provide further support for DM as a potential risk factor for poor cognitive outcomes. Studies are needed that investigate whether DM treatment prevents cognitive decline.