Background And Objectives: Proxy respondents are an important tool in survey research, especially among people with cognitive impairment. However, proxy respondents may be unable to accurately answer subjective survey instruments for cognitively impaired persons. This study investigates the mediating effect of proxy status on the relationship between cognitive impairment and subjectively rated health.
Research Design And Methods: Respondents from the 2018 wave of the Health and Retirement Study (N = 17,146) were included, and the Baron and Kenny method assessed the potential mediating role of having a proxy on subjectively rated health. Subjectively rated health and proxy status were dichotomously coded, and relationships between cognitive impairment, proxy status, and subjectively rated health were assessed using logistic regression.
Results: Findings indicate that cognitive impairment is inversely associated with subjectively rated health, and it is directly associated with having a proxy. They also indicate that having a proxy is inversely related to subjectively rated health. When including proxy status and cognitive impairment in the same model, cognitive impairment no longer predicted subjectively rated health. This indicates that proxy status perfectly mediated the relationship between cognitive impairment and subjectively rated health.
Discussion And Implications: Measuring the experiences of people with cognitive impairment is challenging in survey research due to the limiting features of cognitive impairment. Although having a proxy respondent helps address attrition-related measurement challenges in survey research, findings indicate that proxies report worse subjectively rated health for people with cognitive impairment compared to individuals with comparable levels of cognitive impairment without a proxy. Future research may benefit from exploring optimal proxy-respondent characteristics.
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http://dx.doi.org/10.1093/geront/gnad163 | DOI Listing |
BMC Psychiatry
January 2025
Division of Epidemiology and Social Sciences, Institute for Health and Equity, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
Background: During adolescence, a critical developmental phase, cognitive, psychological, and social states interact with the environment to influence behaviors like decision-making and social interactions. Depressive symptoms are more prevalent in adolescents than in other age groups which may affect socio-emotional and behavioral development including academic achievement. Here, we determined the association between depression symptom severity and behavioral impairment among adolescents enrolled in secondary schools of Eastern and Central Uganda.
View Article and Find Full Text PDFObjective: To explore the lived experiences and extent of cognitive symptoms in Long COVID (LC) in a UK-based sample.
Design: This study implemented a mixed-methods design. Eight focus groups were conducted to collect qualitative data, and the Framework Analysis was used to reveal the experiences and impact of cognitive symptoms.
J Prev Alzheimers Dis
February 2025
Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University, No.29, Xinquan Road, Gulou District, Fuzhou, Fujian Province, 350000, China; Institute of Clinical Neurology, Fujian Medical University, No.29 Xinquan Road, Gulou District, Fuzhou, Fujian Province, 350000, China. Electronic address:
Background: The effect of statins use on the incidence of Alzheimer's disease (AD) is still under debate, and it could be modified by a series of factors.
Objectives: We aimed to examine the association of statins use with the risk of cognitive impairment and AD, and assess the moderating roles of genetic susceptibility and other individual-related factors.
Design: A longitudinal study was conducted from the UK Biobank where individuals completed baseline surveys (2006-2010) and were followed (mean follow-up period: 9 years).
J Prev Alzheimers Dis
February 2025
Neurology, Fondazione IRCCS "San Gerardo dei Tintori", Monza, Italy; Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Monza, Italy; Laboratory of Neurobiology, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy. Electronic address:
Background: The new criteria for Alzheimer's disease pave the way for the introduction of core blood biomarkers of Alzheimer's disease (BBAD) into clinical practice. However, this depends on the demonstration of sufficient accuracy and robustness of BBADs in the intended population.
Objectives: To assess the diagnostic performance of core BBADs in our memory clinic, comparing them with cerebrospinal fluid (CSF) analysis.
J Prev Alzheimers Dis
February 2025
Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, PR China. Electronic address:
Background: Cognitive decline and the progression to Alzheimer's disease (AD) are traditionally associated with amyloid-beta (Aβ) and tau pathologies. This study aims to evaluate the relationships between microstructural white matter injury, cognitive decline and AD core biomarkers.
Methods: We conducted a longitudinal study of 566 participants using peak width of skeletonized mean diffusivity (PSMD) to quantify microstructural white matter injury.
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