scholarly journals Caregiver rating bias in mild cognitive impairment and mild Alzheimer's disease: impact of caregiver burden and depression on dyadic rating discrepancy across domains

2013 ◽  
Vol 25 (8) ◽  
pp. 1345-1355 ◽  
Author(s):  
Livia Pfeifer ◽  
Reinhard Drobetz ◽  
Sonja Fankhauser ◽  
Moyra E. Mortby ◽  
Andreas Maercker ◽  
...  

ABSTRACTBackground: Caregivers of individuals with dementia are biased in their rating of mental health measures of the care receiver. This study examines caregiver burden and depression as predictors of this bias for mild cognitive impairment and mild Alzheimer's disease in different domains.Methods: The sample consisted of 202 persons: 60 with mild cognitive impairment, 41 with mild Alzheimer's disease, and 101 caregivers. Discrepancy scores were calculated by subtracting the mean caregiver score from the respective mean patient score on the following assessment instruments: the Geriatric Depression Scale, Apathy Evaluation Scale, Bayer-Activities of Daily Living Scale, and Quality of Life-AD scale. Caregiver burden and depression were assessed by the Zarit Burden Interview and the Center for Epidemiologic Studies Depression Scale.Results: Intraclass correlation coefficients were low for apathy (0.38), daily functioning (0.38), and quality of life (0.30) and moderate for depression (0.49). These domains showed negative rating discrepancies, which indicates caregiver rating bias for all four domains. Regression analyses revealed that caregiver burden significantly contributed to explaining these discrepancies in the domains apathy, daily functioning, and quality of life.Conclusion: Caregiver rating bias can be attributed to caregiver burden. When caregiver burden is present, data based on caregiver ratings should therefore be interpreted with caution.

2011 ◽  
Vol 65 (5) ◽  
pp. 533-533 ◽  
Author(s):  
Hiroshi Tatsumi ◽  
Masahiko Yamamoto ◽  
Shutaro Nakaaki ◽  
Kazuo Hadano ◽  
Jin Narumoto

GeroPsych ◽  
2011 ◽  
Vol 24 (1) ◽  
pp. 45-51 ◽  
Author(s):  
M. Berwig ◽  
H. Leicht ◽  
K. Hartwig ◽  
H. J. Gertz

Background: Cognitively impaired or demented patients may have difficulty performing the complex and multidimensional appraisal required by self-ratings (SR) of quality of life (QoL). Even healthy subjects often refer to their current mood state for QoL self-assessment. Therefore, it is hypothesized that patients rely on current mood state as a reference point for QoL SR, and that the degree of reliance increases with the level of cognitive impairment. Methods: Two consecutive samples of 14 patients with mild cognitive impairment (MCI) and 16 patients with Alzheimer’s disease (AD) were examined using the self-rated Dementia-Quality of Life (DEMQoL), a multidimensional mood state questionnaire (MDBF-A, Mehrdimensionaler Befindlichkeitsfragebogen), and the Mini-Mental State Examination (MMSE; MCI: mean = 25.1, SD = 2.1; AD: mean = 20.3, SD = 2.7). Results: As expected, correlations between current mood state and QoL SR (DEMQoL) were highly significant in AD patients but not in MCI patients. The degree of association for all significant correlations was also significantly higher in AD than in MCI patients. Conclusions: The results indicate that SR of QoL are more affectively distorted in AD than MCI. Mood state questionnaires may be an alternative to QoL questionnaires for AD patients, in particular if mood state ratings can be averaged across several points of assessment thus enhancing their validity.


2021 ◽  
Vol 12 ◽  
pp. 172
Author(s):  
Estela Barbosa Ribeiro ◽  
Luiza D’Ottaviano Cobos ◽  
Nicollas Nunes Rabelo ◽  
Gustavo Frigeri ◽  
Francisco Assis Carvalho Vale

Background: Alzheimer’s disease (AD) is known to cause an enormous impairment to the quality of life and impact in the health system; meanwhile, studies show that in the coming years, the number of affected individuals will continue to grow. It is also believed that amnestic mild cognitive impairment (MCI) could represent an early symptomatic form of AD, which precedes dementia. Methods: The present study aimed to evaluate the intracranial pressure (ICP) through a noninvasive method in patients with AD and MCI, seeking for differences when compared to healthy elderlies. This is a cross-sectional, correlational, and observational study of a quantitative character, carried out in a Brazilian city, with patients from the ANEC of the UFSCar. Results: It was found a statistically significant difference between the ICP morphology when analyzing the results in patients with AD and MCI, compared to healthy volunteers. It is known that dementias means a progressive disorder that leads to the loss of independency and function of the patient, although, it is believed that it can be found early ICP alterations in these patients. Nevertheless, considering this is an unprecedent study, it was not possible to compare results with previous studies and literatures. However, the study has a limitation related to the sample size; an expansion of it could possibility lead to different findings. Conclusion: The findings through the ICP measurement could indicate an early diagnosis, which would lead to an early treatment and an improvement in the quality of life of patients with AD. Thus, further investigation and widening studies are encouraged.


CNS Spectrums ◽  
2004 ◽  
Vol 9 (S5) ◽  
pp. 20-23 ◽  
Author(s):  
Gary W. Small

AbstractThe prevalence of Alzheimer's disease (AD) and dementia continues to rise. However, a significant number of patients are undiagnosed or untreated. Given the complexities of detecting cognitive impairment and the early signs of AD, this review discusses how advances in brain imaging can help assist in improving overall management. Imaging techniques and surrogate markers may provide unique opportunities to diagnose accurately AD in presymptomatic stages with practical consequences for patients, caregivers, and physicians. The possible outcomes for using imaging and surrogate markers as adjuncts to clinical examination and as screening tools for AD, as well as tangible and intangible advantages to early diagnosis and treatment, will be discussed. The specific value of using advanced serial imaging in patients with a genetic disposition to AD will be evaluated. If neurons can be protected from neurodegenerative damage in early stages, this may preserve patient cognition, function, and quality of life, and may confer considerable societal healthcare benefits.


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