Objective
To examine variability across multiple prospective cohort studies in level and rate of cognitive decline by race/ethnicity and years of education.
Method
To compare data across studies, we harmonized estimates of common latent factors representing overall or general cognitive performance, memory, and executive function derived from the: 1) Washington Heights, Hamilton Heights, Inwood Columbia Aging Project (N=4,115), 2) Spanish and English Neuropsychological Assessment Scales (N=525), 3) Duke Memory, Health, and Aging study (N=578), and 4) Neurocognitive Outcomes of Depression in the Elderly (N=585). We modeled cognitive change over age for cognitive outcomes by race, education, and study. We adjusted models for sex, dementia status, and study-specific characteristics.
Results
For baseline levels of overall cognitive performance, memory, and executive function, differences in race and education tended to be larger than between-study differences and consistent across studies. This pattern did not hold for rate of cognitive decline: effects of education and race/ethnicity on cognitive change were not consistently observed across studies, and when present were small, with racial/ethnic minorities and those with lower education declining at faster rates.
Discussion
In this diverse set of datasets, non-Hispanic whites and those with higher education had substantially higher baseline cognitive test scores. However, differences in the rate of cognitive decline by race/ethnicity and education did not follow this pattern. This study suggests that baseline test scores and longitudinal change have different determinants, and future studies to examine similarities and differences of causes of cognitive decline in racially/ethnically and educationally diverse older groups is needed.
Purpose
There is extensive empirical literature that has sought to establish the prevalence of, and risk factors for, loneliness and social isolation in later life. Traditional empirical gerontological approaches have characterised loneliness as a linear experience that is both pathological and easily relieved with external intervention. The purpose of this paper is to explore the potential of qualitative interview data to reveal the possible complexities in understanding loneliness, including conceptual considerations for the dynamic and multi-dimensional aspects of loneliness.
Design/methodology/approach
The authors draw on two different studies where the purpose was to qualitatively examine the meaning of loneliness in the lives of older people and how they understood loneliness in the context of their daily life (n=37).
Findings
Interviews with “lonely” older people revealed that loneliness is a complex and dynamic experience. The authors also identified a range of internal and external factors that contribute to vulnerability for loneliness as well as resources to alleviate it.
Originality/value
The dynamic and multi-dimensional characteristics of loneliness in older people may help explain why community-based interventions to diminish it may be so challenging.
In large population settings, simple clinical assessments could be used in the first instance to identify older adults who would benefit from further testing with routine (non-fasting) blood markers to identify those at most likely to be at elevated diabetes risk.
Background: The Department of Health launched a cardiovascular disease risk assessment initiative with particular reference to reducing health inequalities in ethnic minorities. Collaboration between HEART UK, Royal Free Hampstead NHS Trust and Hindu Temples resulted in vascular screening in North London. Methods: Subjects of South Asian origin were screened. A full lipid profile and glucose were measured using a point of care testing (POCT) Cholestech LDX analyser (LDX). Venous samples were analysed in our hospital laboratory.
Results:The results (215 men; 191 women) were divided into tertiles and Bland-Altman plots were used to assess agreement. At high-density lipoprotein cholesterol (HDL-C) concentrations ,1.0 mmol/L the LDX underestimated values by 20.2 mmol/L (P,0.0001). At HDL-C concentrations .1.3 mmol/L this bias disappeared. For total cholesterol the concentration-dependent negative bias was evident at concentrations of ,4.1 mmol/L (P , 0.0001). This bias was less evident at higher concentrations. A similar pattern was seen for low-density lipoprotein cholesterol. There were also small variations in glucose and triglyceride values. However, there was excellent agreement in calculated cardiovascular disease risk using kappa analysis for JBS2, QRISK2, ETHRISK and Framingham (k ¼ 0.86, 0.92, 0.94 and 0.88, respectively). This was a high-risk population since 9.7 -19.4% had a !20% 10-y probability of a vascular event depending on the risk engine and assay method used. The corresponding values for intermediate risk (11 -19%) were 18.6-25.7%. Conclusions: There was a minimum mismatch irrespective of the type of risk calculator used. POCT measurements are adequate for the
BackgroundUse of a validated risk-assessment tool to identify individuals at high risk of developing type 2 diabetes is currently recommended. It is under-reported, however, whether a different risk tool alters the predicted risk of an individual.
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