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1.
Psychol Aging ; 39(2): 188-198, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38330372

RESUMO

Prior research has shown that some personality traits are associated with cognitive outcomes and may confirm risk or protection against cognitive decline. The present study expands on previous work to examine the association between a more comprehensive set of psychological characteristics and cognitive performance in a diverse cohort of older adults. We also examine whether controlling for brain atrophy influences the association between psychological characteristics and cognitive function. A total of 157 older adults completed a battery of psychological questionnaires (Openness to Experience, Conscientiousness, Agreeableness, Neuroticism, Extraversion, positive affect, negative affect-sadness, negative affect-anger, sense of purpose, loneliness, grit, and self-efficacy). Cognitive outcomes were measured across multiple domains: episodic memory, semantic memory, executive function, and spatial ability. Baseline brain (MRI) variables included gray matter, hippocampus, and total white matter hyperintensity volume. Parallel process, multilevel models yielded intercept (individual cognitive domain scores) and linear slope (global cognitive change) random effects for the cognitive outcomes. Positive affect (ß = 0.013, SE = 0.005, p = .004) and Openness (ß = 0.018, SE = 0.007, p = .009) were associated with less cognitive change, independent of baseline brain variables and covariates. Greater sadness predicted more cognitive decline when controlling for covariates, but not brain atrophy. A variety of psychological characteristics were associated with the cross-sectional measures of cognition. This study highlights the important impact of positive and negative affect on reducing or enhancing the risk of longitudinal cognitive decline. Such findings are especially important, given the available efficacious interventions that can improve affect. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Disfunção Cognitiva , Memória Episódica , Humanos , Idoso , Estudos Transversais , Envelhecimento/psicologia , Personalidade , Cognição , Atrofia
2.
Dement Geriatr Cogn Disord ; 53(2): 83-90, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38422998

RESUMO

INTRODUCTION: We elicited Vietnamese Americans' perspectives on culturally appropriate recruitment into a new research registry: Collaborative Approach for Asian Americans, Native Hawaiians, and Pacific Islanders (AANHPIs) Research and Education (CARE). METHODS: Three focus groups were conducted with 21 Vietnamese Americans. Topics included knowledge about and experiences with research, outreach and recruitment methods for research participation and registry enrollment, and views about research incentives. Focus group transcripts were analyzed thematically. RESULTS: Mean age of participants was 41 years (range 18-73), 57% were male, 86% were non-US born, and 81% had never participated in a research study. Themes that emerged included (1) motivations to participate in research to gain knowledge: for oneself, for family's benefit, and for the Vietnamese American community as a whole; (2) necessity of trustworthy and credible individuals/spokespersons to promote the research initiative; (3) recruitment strategies that are age-specific and culturally appropriate, and (4) importance of monetary incentives. CONCLUSION: Findings from this study will be used to guide recruitment into and engagement with CARE among Vietnamese Americans but are also relevant for other registries aiming to diversify their participants.


Assuntos
Envelhecimento , Asiático , Grupos Focais , Sistema de Registros , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Envelhecimento/psicologia , Asiático/psicologia , Motivação , Seleção de Pacientes , Vietnã/etnologia , Estados Unidos
3.
Alzheimer Dis Assoc Disord ; 38(1): 91-94, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38194584

RESUMO

We aimed to prospectively assess the change in neuropsychiatric symptoms among people who develop cognitive impairment and have a history of post-traumatic stress disorder (PTSD). We analyzed longitudinal data from the National Alzheimer's Coordinating Center Unified Data Set (March 2015 to December 2021). Analyses included individuals who were cognitively normal and who had nonmissing assessment of PTSD at the initial visit and had at least 1 follow-up visit with cognitive impairment. We compared the difference in the mean neuropsychiatric symptom score at the first Unified Data Set visit versus the first visit with a Clinical Dementia Rating of 0.5 between those with and without a history of PTSD. The mean neuropsychiatric symptom score change did not differ between those with and without a history of PTSD (1.06 vs. 0.77, respectively; P =0.79). The null results found in this study warrant future research. Several methodological limitations might explain these results.


Assuntos
Disfunção Cognitiva , Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Disfunção Cognitiva/psicologia
4.
Alzheimers Dement ; 20(4): 3000-3020, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38265164

RESUMO

INTRODUCTION: We set out to map evidence of disparities in Alzheimer's disease and Alzheimer's disease related dementias healthcare, including issues of access, quality, and outcomes for racial/ethnic minoritized persons living with dementia (PLWD) and family caregivers. METHODS: We conducted a scoping review of the literature published from 2000 to 2022 in PubMed, PsycINFO, and CINAHL. The inclusion criteria were: (1) focused on PLWD and/or family caregivers, (2) examined disparities or differences in healthcare, (3) were conducted in the United States, (4) compared two or more racial/ethnic groups, and (5) reported quantitative or qualitative findings. RESULTS: Key findings include accumulating evidence that minoritized populations are less likely to receive an accurate and timely diagnosis, be prescribed anti-dementia medications, and use hospice care, and more likely to have a higher risk of hospitalization and receive more aggressive life-sustaining treatment at the end-of-life. DISCUSSION: Future studies need to examine underlying processes and develop interventions to reduce disparities while also being more broadly inclusive of diverse populations.


Assuntos
Doença de Alzheimer , Disparidades em Assistência à Saúde , Humanos , Estados Unidos , Doença de Alzheimer/terapia , Grupos Raciais , Cuidadores
5.
Alzheimer Dis Assoc Disord ; 38(1): 51-58, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38277636

RESUMO

OBJECTIVE: Little is known about caregiving across the spectrum of cognitive impairment [mild cognitive impairment (MCI) to dementia] and how early life and sociocultural factors affect caregiver health. In this study, we characterized differences between caregivers of those with MCI versus those with dementia. METHODS: A total of 158 caregivers were enrolled in this cross-sectional study, most of whom were dementia caregivers (65%). Caregivers completed questionnaires on depressive symptoms, self-rated health (SRH), perceived burden and stress, as well as psychosocial and demographic measures. RESULTS: Caregivers of those with MCI reported fewer depressive symptoms and lower stress and burden compared with dementia caregivers. In adjusted analyses caregivers with greater stress reported more depressive symptoms. For SRH, at lower stress levels, having a sibling die before age 18 (ie, early life adversity) was associated with poorer SRH; at higher stress levels, having early life adversity was associated with better SRH. At lower burden levels, more live births were associated with worse SRH; at higher burden levels, more live births were associated with better SRH. CONCLUSIONS: Early life factors are relevant for caregivers of those with cognitive impairment and targeted prevention and early intervention may be helpful in alleviating caregiver burden and stress.


Assuntos
Disfunção Cognitiva , Demência , Humanos , Adolescente , Cuidadores/psicologia , Estudos Transversais , Efeitos Psicossociais da Doença , Disfunção Cognitiva/psicologia , Demência/psicologia , Qualidade de Vida/psicologia
6.
Alzheimers Dement ; 20(2): 904-913, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37817548

RESUMO

INTRODUCTION: Community disadvantage is associated with late-life cognition. Few studies examine its contribution to racial disparities in cognition/cognitive change. METHODS: Inverse probability weighted models estimated expected mean differences in cognition/cognitive change attributed to residing in less advantaged communities, defined as cohort top quintile of Area Deprivation Indices (ADI): childhood 66-100; adulthood ADI 5-99). Interactions by race tested. RESULTS: More Black participants resided in less advantaged communities. Semantic memory would be lower if all participants had resided in less advantaged childhood (b = -0.16, 95% confidence interval [CI] = -0.30, -0.03) or adulthood (b = -0.14, 95% CI = -0.22, -0.04) communities. Race interactions indicated that, among Black participants, less advantaged childhood communities were associated with higher verbal episodic memory (interaction p-value = 0.007) and less advantaged adulthood communities were associated with lower semantic memory (interaction p-value = 0.002). DISCUSSION: Examining racial differences in levels of community advantage and late-life cognitive decline is a critical step toward unpacking community effects on cognitive disparities.


Assuntos
Disfunção Cognitiva , Memória Episódica , Adulto , Criança , Humanos , Cognição , Negro ou Afro-Americano , Características da Vizinhança , Privação Social , Determinantes Sociais da Saúde
7.
Artigo em Inglês | MEDLINE | ID: mdl-37174185

RESUMO

Studies examining associations between greenspace and Alzheimer's disease and related dementia (ADRD) outcomes are rapidly on the rise, yet no known literature reviews have summarized the racialized/ethnic group and geographic variation of those published studies. This is a significant gap given the known disparities in both greenspace access and ADRD risk between racialized/ethnic groups and between developed versus developing countries. In this rapid literature review, we (1) describe the diversity of published greenspace-brain health studies with respect to racialized/ethnic groups and geographic regions; (2) determine the extent to which published studies have investigated racialized/ethnic group differences in associations; and (3) review methodological issues surrounding studies of racialized/ethnic group disparities in greenspace and brain health associations. Of the 57 papers meeting our inclusion criteria as of 4 March 2022, 21% (n = 12) explicitly identified and included individuals who were Black, Hispanic/Latinx, and/or Asian. Twenty-one percent of studies (n = 12) were conducted in developing countries (e.g., China, Dominican Republic, Mexico), and 7% (n = 4) examined racialized/ethnic group differences in greenspace-brain health associations. None of the studies were framed by health disparities, social/structural determinants of health, or related frameworks, despite the known differences in both greenspace availability/quality and dementia risk by racialized/ethnic group and geography. Studies are needed in developing countries and that directly investigate racialized/ethnic group disparities in greenspace-brain health associations to target and promote health equity.


Assuntos
Etnicidade , Parques Recreativos , Humanos , Encéfalo , Promoção da Saúde , Hispânico ou Latino , População Negra , Povo Asiático
8.
Alzheimers Dement ; 19(11): 5198-5208, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37171018

RESUMO

INTRODUCTION: This discrete choice experiment (DCE) identified Asian American and Pacific Islander (AAPI) adults' preferences for recruitment strategies/messaging to enroll in the Collaborative Approach for AAPI Research and Education (CARE) registry for dementia-related research. METHODS: DCE recruitment strategy/messaging options were developed in English, Chinese, Korean, and Vietnamese. AAPI participants 50 years and older selected (1) who, (2) what, and (3) how they would prefer hearing about CARE. Analyses utilized conditional logistic regression. RESULTS: Participants self-identified as Asian Indian, Chinese, Filipino, Japanese, Korean, Samoan, or Vietnamese (N = 356). Overall, they preferred learning about CARE from the healthcare community (vs. community champions and faith-based organizations), joining CARE to advance research (vs. personal experiences), and hearing about CARE through social media/instant messaging (vs. flyer or workshop/seminar). Preferences varied by age, ethnic identity, and survey completion language. DISCUSSION: DCE findings may inform tailoring recruitment strategies/messaging to engage diverse AAPI in an aging-focused research registry.


Assuntos
Asiático , População das Ilhas do Pacífico , Seleção de Pacientes , Sistema de Registros , Adulto , Humanos , Inquéritos e Questionários , Envelhecimento
9.
Alzheimers Dement (N Y) ; 9(2): e12392, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37251911

RESUMO

There is a dearth of research on cognitive aging and dementia in Asian Americans, particularly Vietnamese Americans, who are the fourth largest Asian subgroup in the United States. The National Institutes of Health is mandated to make certain that racially and ethnically diverse populations are included in clinical research. Despite the widespread recognition to ensure that research findings can be generalizable to all groups, there are no estimates of the prevalence or incidence of mild cognitive impairment and Alzheimer's disease and related dementias (ADRD) in Vietnamese Americans, nor do we understand ADRD risk and protective factors in this group. In this article, we posit that studying Vietnamese Americans contributes to a better understanding of ADRD in general and offers unique opportunities for elucidating life course and sociocultural factors that contribute to cognitive aging disparities. That is, the unique context of Vietnamese Americans may provide understanding in terms of within-group heterogeneity and key factors in ADRD and cognitive aging. Here, we provide a brief history of Vietnamese American immigration and describe the large but often ignored heterogeneity of Asian Americans in the United States, elucidate how early life adversity and stress might influence late-life cognitive aging, and provide a basis for the role of sociocultural and health factors in the study of Vietnamese cognitive aging disparities. Research with older Vietnamese Americans provides a unique and timely opportunity to more fully delineate the factors that contribute to ADRD disparities for all populations.

10.
Health Place ; 81: 103008, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37003018

RESUMO

We developed the Life Course Sociodemographics and Neighborhood Questionnaire (LSNEQ) to query older adults about perceived neighborhood greenspaces across the life course (i.e., distance to park, number of neighborhood parks/playgrounds, and neighborhood greenness) and about characteristics hypothesized to confound or moderate/mediate greenspace-health associations. Six perceived life course indices are derived from the LSNEQ: neighborhood socioeconomic status, neighborhood walking/biking, urbanicity, neighborhood amenities, neighborhood park access, and neighborhood greenness. Older adults from St. Louis, Missouri, and Sacramento, California, completed the LSNEQ in 2020-2021. The indices demonstrated borderline acceptable to good internal consistency (alpha = 0.60-0.79) and good to excellent test-retest reliability (ICC = 0.71-0.96) and detected different patterns of park access and neighborhood greenness by racialized group and location. Individuals with index scores indicating more neighborhood walking/biking and greater presence of neighborhood amenities over their life course were more likely to report neighborhood-based walking in older age. Overall, the LSNEQ is a reliable instrument to assess perceptions of life course social determinants of health including neighborhood greenspaces.


Assuntos
Parques Recreativos , Determinantes Sociais da Saúde , Humanos , Idoso , Reprodutibilidade dos Testes , Acontecimentos que Mudam a Vida , Caminhada , Inquéritos e Questionários , Características de Residência
11.
J Int Neuropsychol Soc ; 29(8): 742-750, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36880230

RESUMO

OBJECTIVES: Early-life socioeconomic status (SES) and adversity are associated with late-life cognition and risk of dementia. We examined the association between early-life SES and adversity and late-life cross-sectional cognitive outcomes as well as global cognitive decline, hypothesizing that adulthood SES would mediate these associations. METHODS: Our sample (N = 837) was a racially and ethnically diverse cohort of non-Hispanic/Latino White (48%), Black (27%), and Hispanic/Latino (19%) participants from Northern California. Participant addresses were geocoded to the level of the census tract, and US Census Tract 2010 variables (e.g., percent with high school diploma) were extracted and combined to create a neighborhood SES composite. We used multilevel latent variable models to estimate early-life (e.g., parental education, whether participant ever went hungry) and adult (participant's education, main occupation) SES factors and their associations with cross-sectional and longitudinal cognitive outcomes of episodic memory, semantic memory, executive function, and spatial ability. RESULTS: Child and adult factors were strongly related to domain-specific cognitive intercepts (0.20-0.48 SD per SD of SES factor); in contrast, SES factors were not related to global cognitive change (0.001-0.01 SD per year per SD of SES factor). Adulthood SES mediated a large percentage (68-75%) of the total early-life effect on cognition. CONCLUSIONS: Early-life sociocontextual factors are more strongly associated with cross-sectional late-life cognitive performance compared to cognitive change; this effect is largely mediated through associations with adulthood SES.


Assuntos
Memória Episódica , Classe Social , Adulto , Criança , Humanos , Estudos Transversais , Fatores Socioeconômicos , Cognição
12.
Alzheimers Dement (Amst) ; 15(1): e12399, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36762299

RESUMO

Background: Modifiable risks for dementia are more prevalent in rural populations, yet there is a dearth of research examining life course rural residence on late-life cognitive decline. Methods: The association of rural residence and socioeconomic status (SES) in childhood and adulthood with late-life cognitive domains (verbal episodic memory, executive function, and semantic memory) and cognitive decline in the Kaiser Healthy Aging and Diverse Life Experiences cohort was estimated using marginal structural models with stabilized inverse probability weights. Results: After adjusting for time-varying SES, the estimated marginal effect of rural residence in childhood was harmful for both executive function (ß = -0.19, 95% confidence interval [CI] = -0.32, -0.06) and verbal episodic memory (ß = -0.22, 95% CI = -0.35, -0.08). Effects of adult rural residence were imprecisely estimated with beneficial point estimates for both executive function (ß = 0.19; 95% CI = -0.07, 0.44) and verbal episodic memory (ß = 0.24, 95% CI = -0.07, 0.55). Conclusions: Childhood rurality is associated with poorer late-life cognition independent of SES.

13.
Alzheimers Dement (Amst) ; 15(1): e12401, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36788980

RESUMO

Introduction: Few longitudinal studies have examined the joint impact of neighborhood segregation and neighborhood socioeconomic status (NSES) in cognitive decline over time. Methods: This study included non-Hispanic White (NHW, n = 209) and Black participants (n = 118) whose cognition was evaluated as part of an ongoing longitudinal study. Four distinct categories of segregation and NSES were evaluated for their association with cognitive outcomes (episodic memory, semantic memory, executive function, and spatial ability) using race-specific mixed-effects models. Results: Compared to Black participants living in higher segregation-lower NSES areas, Black participants living in lower segregation-lower NSES areas or higher segregation-higher NSES areas experienced slower decline in episodic memory over time. Compared to NHW participants living in higher segregation-lower NSES areas, NHWs living in lower segregation-higher NSES areas experienced faster decline in spatial ability. Discussion: Segregation and NSES are differentially associated with cognition depending on participant race. Further research is needed to replicate study results.

14.
JMIR Public Health Surveill ; 9: e35748, 2023 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-36395324

RESUMO

BACKGROUND: The global COVID-19 pandemic disproportionately affected Asian Americans and Pacific Islanders (AAPIs) and revealed significant health disparities with reports of increased discrimination and xenophobia. Among AAPIs, the pandemic exacerbated their social, linguistic, and geographic isolation. Social support may be especially important for AAPIs given the salience of collectivism as a cultural value. Another mechanism for support among AAPIs was technology use, as it is generally widespread among this population. However, older adults may not perceive the same benefits. OBJECTIVE: We examined social support and technology use and their relationships with mental and physical health outcomes through the COVID-19 pandemic among AAPIs. METHODS: Data were drawn from the COVID-19 Effects on the Mental and Physical Health of AAPI Survey Study (COMPASS) for the time period of October 2020 to February 2021. COMPASS was a cross-sectional, multilingual, national survey conducted online, by phone, and in person with AAPI adults who were ≥18 years of age, in collaboration with academic and community partners in the United States. Data were analyzed using multivariable linear regression using the outcome variables of mental and physical health with various predictors such as social support and technology use. We tested for interactions specific to age and ethnicity. RESULTS: Among 4631 AAPIs (mean age 45.9, SD 16.3 years; 2992/4631, 63.1% female), we found that (1) increased social support was associated with better physical health, (2) total social support was positively associated with better mental health, (3) higher technology use was associated with poorer mental health and inversely associated with poorer physical health, (4) the association of technology use with mental health was weaker among those with low social support (vs those with high social support), (5) adults younger than 60 years old (vs ≥60 years old) were more negatively affected with social support and mental health, and (6) Korean Americans appeared to be a high-risk group for poor physical health with increased technology use. CONCLUSIONS: Our paper identified mental and physical health needs along with supportive therapies observed among AAPIs during the pandemic. Future research on how social support can be leveraged, especially among AAPIs younger than 60 years old, and how various types of technology are being utilized are important to guide the recovery efforts to address both mental and physical disparities across communities as a result of the COVID-19 pandemic.


Assuntos
COVID-19 , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Asiático , Estudos Transversais , Pandemias , Apoio Social , Estados Unidos
15.
Am J Cardiol ; 189: 11-21, 2023 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-36481374

RESUMO

In 2022, the Vietnamese population in the United States (US) comprises 2.2 million individuals, and Vietnam ranks as the sixth most frequent country of origin among immigrants in the US. The American Heart Association and the National Institutes of Health have called for research to define the burden of cardiovascular risk factors, cardiovascular disease, and their determinants across Asian American subgroups, including Vietnamese Americans. Despite these calls, Vietnamese Americans remain remarkably overlooked in cardiovascular research in the US. Studies in Vietnam, small cross-sectional surveys in the US, and research using US mortality data point to a high prevalence of hypertension and tobacco use among men and a high incidence of gestational diabetes among women. Moreover, Vietnamese Americans have one of the highest rates of cerebrovascular mortality in the country. Adverse social determinants of health-including frequent language barriers, limited health literacy, and low average income-have been suggested as important factors that contribute to cardiovascular risk in this group. In this narrative review, we summarize the existing knowledge in this space, highlight the distinct characteristics of cardiac risk in both Vietnamese and Vietnamese American individuals, discuss upstream determinants, and identify key knowledge gaps. We then outline several proposed interventions and emphasize the need for further studies in this underrepresented population. Our aim is to increase awareness of the significant burden of risk factors and cardiovascular disease shouldered by this large-but thus far overlooked-population in the US, boost research in this space, and help inform tailored, effective preventive interventions.


Assuntos
Aterosclerose , Doenças Cardiovasculares , Masculino , Humanos , Estados Unidos/epidemiologia , Feminino , Doenças Cardiovasculares/epidemiologia , Fatores de Risco , Determinantes Sociais da Saúde , Estudos Transversais , Fatores de Risco de Doenças Cardíacas , Aterosclerose/epidemiologia
16.
Int Psychogeriatr ; 35(1): 17-28, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-33353575

RESUMO

OBJECTIVES: We examined the association of generational status and age at immigration with later life cognitive outcomes in a diverse sample of Latinos and Asian Americans. DESIGN: Baseline data were obtained from the Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) study, and a prospective cohort is initiated in 2017. SETTING: Older adults in Northern California. PARTICIPANTS: Our cohort consisted of Asians (n = 411) and Latinos (n = 340) who were on average 76 years old (SD = 6.8). MEASUREMENTS: We used multivariable linear regression models to estimate associations between generational status and age at immigration (collapsed into one five-level variable) with measures of verbal episodic memory, semantic memory, and executive function, adjusting for age, gender, race and ethnicity, and own- and parental education. RESULTS: Generational status and age at immigration were associated with cognitive outcomes in a graded manner. Compared to third-generation or higher immigrants, first-generation immigration in adulthood was associated with lower semantic memory (ß = -0.96; 95% CI: -1.12, -0.81) than immigration in adolescence (ß = -0.68; 95% CI: -0.96, -0.41) or childhood (ß = -0.28; 95% CI: -0.49, -0.06). Moreover, immigration in adulthood was associated with lower executive function (ß = -0.63; 95% CI: -0.78, -0.48) than immigration in adolescence (ß = -0.49; 95% CI: -0.75, -0.23). Similarly, compared to third-generation individuals, first-generation immigrants had lower executive functioning scores. CONCLUSIONS: Our study supports the notion that sociocontextual influences in early life impact later life cognitive scores. Longitudinal studies are needed to further clarify how immigration characteristics affect cognitive decline.


Assuntos
Envelhecimento Saudável , Memória Episódica , Humanos , Idoso , Criança , Emigração e Imigração , Acontecimentos que Mudam a Vida , Estudos Prospectivos , Cognição
17.
Alzheimers Dement ; 19(4): 1143-1151, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35869977

RESUMO

INTRODUCTION: We investigated associations between neighborhood racial/ethnic segregation and cognitive change. METHODS: We used data (n = 1712) from the Multi-Ethnic Study of Atherosclerosis. Racial/ethnic segregation was assessed using Getis-Ord (Gi*) z-scores based on American Community Survey Census tract data (higher Gi* = greater spatial clustering of participant's race/ethnicity). Global cognition and processing speed were assessed twice, 6 years apart. Adjusted multilevel linear regression tested associations between Gi* z-scores and cognition. Effect modification by race/ethnicity, income, education, neighborhood socioeconomic status, and neighborhood social support was tested. RESULTS: Participants were on average 67 years old; 43% were White, 11% Chinese, 29% African American/Black, 17% Hispanic; 40% had high neighborhood segregation (Gi* > 1.96). African American/Black participants with greater neighborhood segregation had greater processing speed decline in stratified analyses, but no interactions were significant. DISCUSSION: Segregation was associated with greater processing speed declines among African American/Black participants. Additional follow-ups and comprehensive cognitive batteries may further elucidate these findings. HIGHLIGHTS: A study of neighborhood racial/ethnic segregation and change in cognition. Study was based on a racially and geographically diverse, population-based cohort of older adults. Racial/ethnic segregation (clustering) was measured by the Getis-ord (Gi*) statistic. We saw faster processing speed decline among Black individuals in segregated neighborhoods.


Assuntos
Aterosclerose , Etnicidade , Segregação Residencial , Idoso , Humanos , Negro ou Afro-Americano , Hispânico ou Latino , Brancos , Asiático
18.
J Int Neuropsychol Soc ; 29(2): 126-135, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35243969

RESUMO

OBJECTIVE: This study evaluated: (1) apolipoprotein E (APOE) ϵ4 prevalence among Black, Latino, and White older adults, (2) associations of APOE ϵ4 status with baseline level and change over time of cognitive outcomes across groups, and (3) combined impact of APOE ϵ4 prevalence and magnitude of effect on cognitive decline within each racial/ethnic group. METHOD: Participants included 297 White, 138 Latino, and 149 Black individuals from the longitudinal UC Davis Diversity Cohort who had APOE genotyping and ≥2 cognitive assessments. Magnitude of associations of ϵ4 with cognitive baseline and change across racial/ethnic groups was tested with multilevel parallel process longitudinal analyses and multiple group models. RESULTS: ϵ4 prevalence in Black (46%) and White participants (46%) was almost double that of Latino participants (24%). ϵ4 was associated with poorer baseline episodic memory only in White participants (p = .001), but had a moderately strong association with episodic memory change across all racial/ethnic groups (Blacks= -.061 SD/year, Latinos = -.055,Whites= -.055). ϵ4 association with semantic memory change was strongest in White participants (-.071), intermediate in Latino participants (-.041), and weakest in Black participants (-.022). CONCLUSION: Calculated cognitive trajectories across racial/ethnic groups were influenced in an additive manner by ϵ4 prevalence and strength of association with cognitive decline within the group. Group differences in ϵ4 prevalences and associations of ϵ4 with cognition may suggest different pathways from APOE to cognitive decline, and, AD possibly having less salient impact on cognitive decline in non-White participants. Differential effects of APOE on episodic memory and non-memory cognition have important implications for understanding how APOE influences late life cognitive decline.


Assuntos
Disfunção Cognitiva , Etnicidade , Idoso , Humanos , Apolipoproteína E4 , Apolipoproteínas E , Cognição , Disfunção Cognitiva/epidemiologia , População Branca , Negro ou Afro-Americano , Hispânico ou Latino
19.
Artigo em Inglês | MEDLINE | ID: mdl-34412558

RESUMO

This study examined the effectiveness of a 10-week cognitive rehabilitation and lifestyle modifying intervention that integrated compensation strategies, engagement in brain activities, and improving everyday function. The trial was registered with ClinicalTrials.gov (NCT03549078). Older adults with subjective cognitive concerns and normal performance on a cognitive screener were randomized into the intervention (n = 28) or waitlist control (n = 29) groups. The total sample comprised 57 individuals (age, mean = 74.8, SD = 6.5), mostly female (80.4% of the total sample), and well educated (education years: mean = 15.9, SD = 2.1). Outcome measures were completed at baseline, and immediately and 3- and 6-months post-intervention. Intervention participants reported significant improvements in aspects of everyday functioning and select compensation strategies and brain health activities. Increased compensation strategy use was maintained at 6-month follow up. This intervention has benefits for improving everyday functioning and increasing engagement with compensation strategies and brain health activities.


Assuntos
Disfunção Cognitiva , Treino Cognitivo , Humanos , Feminino , Idoso , Masculino , Atividades Cotidianas , Estilo de Vida , Avaliação de Resultados em Cuidados de Saúde , Cognição , Disfunção Cognitiva/psicologia
20.
Alzheimers Dement ; 19(2): 433-443, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35420258

RESUMO

INTRODUCTION: Clinical research focused on aging, Alzheimer's disease and related dementias (ADRD), and caregiving often does not recruit Asian Americans and Pacific Islanders (AAPIs). METHODS: With funding from the National Institute on Aging, we designed and launched the Collaborative Approach for AAPIs Research and Education (CARE), a research recruitment registry to increase AAPIs' participation in ADRD, aging, and caregiving research. We present the design of this novel recruitment program. RESULTS: CARE uses community-based participatory research methods that are culturally and linguistically appropriate. Since CARE's launch, it has enrolled >7000 AAPIs in a 1-year period. The majority enrolled in CARE via community organizations and reported never having participated in any kind of research before. CARE also engages researchers by establishing a recruitment referral request protocol. DISCUSSION: CARE provides a promising venue to foster meaningful inclusion of AAPIs who are under-represented in aging and dementia-related research.


Assuntos
Doença de Alzheimer , Humanos , Cuidadores , Asiático , População das Ilhas do Pacífico , Sistema de Registros , Envelhecimento
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