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1.
Alzheimers Dement ; 20(4): 3088-3098, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38348782

RESUMO

INTRODUCTION: Older military veterans often present with unique and complex risk factors for Alzheimer's disease (AD) and related dementias. Increasing veteran participation in research studies offers one avenue to advance the field and improve health outcomes. METHODS: To this end, the National Institute on Aging (NIA) and Department of Veterans Affairs (VA) partnered to build infrastructure, improve collaboration, and intensify targeted recruitment of veterans. This initiative, INviting Veterans InTo Enrollment in Alzheimer's Disease Research Centers (INVITE-ADRC), provided funding for five sites and cross-site organizing structure. Diverse and innovative recruitment strategies were used. RESULTS: Across five sites, 172 veterans entered registries, and 99 were enrolled into ADRC studies. Of the enrolled, 39 were veterans from historically underrepresented racial and ethnic groups. CONCLUSIONS: This initiative laid the groundwork to establish sustainable relationships between the VA and ADRCs. The partnership between both federal agencies demonstrates how mutual interests can accelerate progress. In turn, efforts can help our aging veterans.


Assuntos
Doença de Alzheimer , Veteranos , Estados Unidos , Humanos , National Institute on Aging (U.S.) , United States Department of Veterans Affairs , Envelhecimento
2.
Alzheimers Dement ; 18(8): 1545-1564, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-34870885

RESUMO

Black Americans are disproportionately affected by dementia. To expand our understanding of mechanisms of this disparity, we look to Alzheimer's disease (AD) biomarkers. In this review, we summarize current data, comparing the few studies presenting these findings. Further, we contextualize the data using two influential frameworks: the National Institute on Aging-Alzheimer's Association (NIA-AA) Research Framework and NIA's Health Disparities Research Framework. The NIA-AA Research Framework provides a biological definition of AD that can be measured in vivo. However, current cut-points for determining pathological versus non-pathological status were developed using predominantly White cohorts-a serious limitation. The NIA's Health Disparities Research Framework is used to contextualize findings from studies identifying racial differences in biomarker levels, because studying biomakers in isolation cannot explain or reduce inequities. We offer recommendations to expand study beyond initial reports of racial differences. Specifically, life course experiences associated with racialization and commonly used study enrollment practices may better account for observations than exclusively biological explanations.


Assuntos
Doença de Alzheimer , Doença de Alzheimer/diagnóstico , Peptídeos beta-Amiloides , Biomarcadores , População Negra , Humanos , National Institute on Aging (U.S.) , Estados Unidos , Proteínas tau
3.
Couns Psychol ; 50(4): 506-535, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35936651

RESUMO

This study evaluated rates of psychiatric symptoms and mental health treatment utilization among National Guard service members during the post-deployment period. National Guard service members (n=311) completed surveys assessing demographics, beliefs about mental health treatment, emotion regulation strategies, and psychiatric symptoms. Mental health treatment utilization was assessed at 6-month follow-up. Post-deployment, 41.2% of the sample had psychiatric symptoms above the clinical cut-off for at least one symptom measure. This proportion increased at follow-up (53.5%). Alcohol use disorder (AUD) symptoms showed the largest increase (d=0.66), although symptoms of depression and posttraumatic stress disorder (PTSD) also showed small magnitude increases. Among those with elevated symptoms post-deployment (n=128), only 27.8% received mental health treatment at follow-up. Severity of depression, anxiety, and PTSD were higher among those who utilized treatment. The post-deployment period is a vulnerable one. Continued efforts to understand and address barriers to treatment for this population are warranted.

4.
Gerontol Geriatr Educ ; 42(1): 114-125, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32420824

RESUMO

Continuing education directed at building providers' skills and knowledge in geriatrics represents a practical approach to addressing the geriatric mental health (MH) care workforce shortage. To inform the development of professional training curricula, we surveyed MH providers (N = 65) at a Veterans Affairs medical center on working with older persons with dementia (PwD) and informal caregivers. Providers rated service provision to PwD and caregivers as highly important but endorsed modest self-efficacy. Half of respondents were minimally confident in managing risk of harm to self or others in a PwD. Respondents believed PwD can benefit from MH treatments, yet identified several barriers to providing care, including inadequate time and staffing resources. Interest in geriatric training topics was high. Findings demonstrate that MH providers at this site value care provision to PwD and caregivers, and desire additional training to serve this population. System-level barriers to MH care for PwD should also be identified and addressed.


Assuntos
Cuidadores , Demência , Geriatria , Pessoal de Saúde , Serviços de Saúde para Idosos , Serviços de Saúde Mental , Idoso , Atitude do Pessoal de Saúde , Cuidadores/educação , Cuidadores/psicologia , Cuidadores/normas , Demência/psicologia , Demência/terapia , Geriatria/educação , Geriatria/métodos , Pessoal de Saúde/educação , Pessoal de Saúde/psicologia , Pessoal de Saúde/normas , Serviços de Saúde para Idosos/ética , Serviços de Saúde para Idosos/normas , Humanos , Serviços de Saúde Mental/ética , Serviços de Saúde Mental/normas , Avaliação das Necessidades , Desenvolvimento de Pessoal/métodos , Estados Unidos , United States Department of Veterans Affairs
5.
Int Psychogeriatr ; 32(3): 393-405, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31455459

RESUMO

OBJECTIVES: We examined race differences in the DSM-IV clinical significance criterion (CSC), an indicator of depressive role impairment, and its impact on assessment outcomes in older white and black women with diagnosed and subthreshold depression. DESIGN: We conducted a secondary analysis of a community-based interview study, using group comparisons and logistic regression. SETTING: Lower-income neighborhoods in a Midwestern city. PARTICIPANTS: 411 community-dwelling depressed and non-depressed women ≥ 65 years (45.3% Black; mean age = 75.2, SD = 7.2) recruited through census tract-based telephone screening. MEASUREMENTS: SCID interview for DSM-IV to assess major depression and dysthymia; Center for Epidemiologic Studies-Depression Scale to define subthreshold depression (≥16 points); Mini-Mental State Examination, count of medical conditions, activities of daily living, and mental health treatment to assess health factors. RESULTS: Black participants were less likely than Whites to endorse the CSC (11.8% vs. 24.1%; p = .002). There were few race differences in depressive symptom type, severity, or count. Blacks with subthreshold depression endorsed more symptoms, though this comparison was not significant after adjustments. Health factors did not account for race differences in CSC endorsement. Disregarding the CSC-eliminated differences in diagnosis rate, race was a significant predictor of CSC endorsement in a logistic regression. CONCLUSIONS: Race differences in CSC endorsement are not due to depressive symptom presentations or health factors. The use of the CSC may lead to underdiagnosis of depression among black older adults. Subthreshold depression among Blacks may be more severe compared to Whites, thus requiring tailored assessment and treatment approaches.


Assuntos
Adaptação Psicológica , Negro ou Afro-Americano/psicologia , Depressão/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Características de Residência/estatística & dados numéricos , População Branca/psicologia , Idoso , Idoso de 80 Anos ou mais , Pesquisa Participativa Baseada na Comunidade , Depressão/etnologia , Depressão/psicologia , Transtorno Depressivo Maior/etnologia , Transtorno Depressivo Maior/psicologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Inquéritos Epidemiológicos , Humanos , Vida Independente , Estudos Longitudinais , Masculino , Áreas de Pobreza , Fatores Raciais , Apoio Social
6.
Int Psychogeriatr ; 31(10): 1463-1472, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30696503

RESUMO

OBJECTIVES: Negative attitudes toward aging are common among formal healthcare providers, but have been infrequently assessed among informal caregivers providing assistance to older adults. The current study sought to identify factors associated with ageism toward older women. DESIGN: Multivariate hierarchical linear regression model. SETTING: Lower-income neighborhoods in an urban setting in the Midwestern USA. PARTICIPANTS: 144 care network members of White and African American women aged ≥ 65 years. MEASUREMENTS: Age Group Evaluation and Description (AGED) Inventory assessed attitudes toward older women; CES-D scale measured depressive symptoms; Intergenerational Affectional Solidarity Scale assessed relationship closeness. RESULTS: In bivariate analyses, African American caregivers endorsed more positive attitudes toward older women. In the multivariate regression model, attitudes toward older women were associated with care recipient health (ß = 0.18, p < 0.05) and relationship closeness with the care recipient (ß = 0.23, p < 0.05). However, these associations were fully mediated by care recipient-specific attitude ratings by the care network member. The association between person-specific attitudes and general attitudes was uniquely directional. CONCLUSIONS: Findings from the present study are consistent with past research suggesting that 'ageism' may, at least in part, derive from bias against perceived poor health. Further, our findings of an association between attitude toward the care recipient and attitudes toward older women in general provide support for cognitive psychology theory which emphasizes the role of personal experience in stereotype formation through the availability heuristic. The current study underlines the necessity for development of interventions to address ageism in informal caregivers.


Assuntos
Etarismo/etnologia , Etarismo/psicologia , Envelhecimento/etnologia , Envelhecimento/psicologia , Cuidadores/psicologia , Estereotipagem , Negro ou Afro-Americano , Idoso , Atitude , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Meio-Oeste dos Estados Unidos , Análise Multivariada , Assistência ao Paciente , Rede Social , População Urbana , População Branca
7.
Alzheimers Dement ; 15(12): 1533-1545, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31601516

RESUMO

INTRODUCTION: We examined the influence of enrollment factors demonstrated to differ by race on incident mild cognitive impairment and dementia using Alzheimer's Disease Center data. METHODS: Differences in rates of incident impairment between non-Latino Whites and Blacks (n = 12,242) were examined with age-at-progression survival models. Models included race, sex, education, source of recruitment, health factors, and family history of dementia. RESULTS: No significant race differences in progression were observed in cognitively unimpaired participants. In those with mild cognitive impairment at baseline, Whites evidenced greater risk for progression than Blacks. Enrollment factors, for example, referral source, were significantly related to progression. DISCUSSION: The finding that Blacks demonstrated lower rate of progression than Whites is contrary to the extant literature. Nested-regression analyses suggested that selection-related factors, differing by race, may account for these findings and influence our ability to accurately estimate risk for progression. It is potentially problematic to make racial comparisons using Alzheimer's Disease Center data sets.


Assuntos
População Negra/estatística & dados numéricos , Disfunção Cognitiva/epidemiologia , Demência/epidemiologia , População Branca/estatística & dados numéricos , Idoso , Progressão da Doença , Feminino , Humanos , Masculino , Seleção de Pacientes , Estados Unidos/epidemiologia
8.
J Gerontol B Psychol Sci Soc Sci ; 78(Suppl 1): S59-S70, 2023 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-36205710

RESUMO

OBJECTIVES: Most older adults with dementia are assisted by multiple caregivers, but the relationship of care network structure with health care access and quality is underexamined. We sought to test the associations of care network characteristics with the physician visit experience for older adults with dementia across diverse racial/ethnic groups. METHODS: We used data on Medicare beneficiaries (aged 65+) with dementia from the National Health and Aging Trends Study (2015-2019) to fit logistic regression models to test associations between physician visit outcomes and (a) size of the potential care network and (b) proportion of potential care network members (PCNMs) currently helping with daily functioning tasks. We also tested for modifications by race/ethnicity. RESULTS: Hispanic respondents had the largest potential care networks (M = 6.89, standard deviation [SD] = 3.58) and the smallest proportion of PCNMs providing help with daily functioning (M = 29.89%, SD = 22.29). In models adjusted for demographics and dementia classification, both network size and proportional involvement of PCNMs were positively associated with the presence of a PCNM and assistance during the visit. Associations remained significant at 4-year follow-up for the presence of PCNM at the visit and were robust to further adjustments for insurance type, income, and health factors. Associations were not modified by race/ethnicity. DISCUSSION: Larger networks and a higher proportion of PCNMs providing assistance predicted caregiver presence and assistance at the physician visit but not access to care. Findings suggest that strengthening care networks early in the disease may support improved health care outcomes for persons with dementia across diverse populations.


Assuntos
Atenção à Saúde , Demência , Idoso , Humanos , Demência/terapia , Hispânico ou Latino , Medicare , Estados Unidos , Brancos , Negro ou Afro-Americano , Visita a Consultório Médico , Atividades Cotidianas
9.
Arch Suicide Res ; : 1-12, 2023 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-37881842

RESUMO

OBJECTIVE: In 2020, Army National Guard members demonstrated greater risk of suicide than their military and civilian counterparts. Though literature on deployment-related experiences and suicidal ideation (SI) is mixed, investigations of specific deployment-related experiences (e.g., injuries) may further elucidate the relationship between deployment and suicide risk. Deployment-related injuries, including pain severity and functional impairment, have been linked to increased risk of SI, and correlates like perceived burdensomeness (PB) and hopelessness. The current study sought to examine the cross-sectional relationship between deployment-related injuries, including pain severity and functional impairment, and severity of SI through PB and hopelessness. METHOD: Immediately post-deployment, Army National Guard members (N = 2,261) completed validated self-report measures on past-week SI, PB, hopelessness, and single items regarding injury sustained during deployment and associated functional impairment and pain severity. RESULTS: Indirect effect analyses revealed that experience of deployment-related injury was related to SI through PB and hopelessness (R2 = .1993), functional impairment was related to SI through PB, and pain severity was related to SI through PB. Contrary to hypotheses, hopelessness was not associated with SI when PB was simultaneously considered. CONCLUSIONS: Army National Guard members who develop a sense of PB related to their injury and functional impairment of that injury may be at increased risk for suicidal ideation. Military suicide-prevention efforts may be potentiated through targeting distorted cognitions such as PB and hopelessness, especially in service members who have been injured.

10.
J Alzheimers Dis ; 91(1): 183-189, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36373315

RESUMO

Individuals with Alzheimer's disease and related dementias (ADRD) accrue higher healthcare utilization costs than peers without ADRD, but incremental costs of ADRD among American Indians/Alaska Natives (AI/AN) is unknown. State-wide paid electronic health record data were retrospectively analyzed using percentile-based bootstrapped 95% confidence intervals of the weighted mean difference of total 5-year billed costs to compare total accrued for non-Tribal and Indian Health Service utilization costs among Medicaid and state program eligible AI/AN, ≥40 years, based on the presence/absence of ADRD (matching by demographic and medical factors). AI/AN individuals with ADRD accrued double the costs compared to those without ADRD, costing an additional $880.45 million to $1.91 billion/year.


Assuntos
Doença de Alzheimer , Indígenas Norte-Americanos , Estados Unidos , Humanos , Doença de Alzheimer/terapia , Indígena Americano ou Nativo do Alasca , Wisconsin , Estudos Retrospectivos , Aceitação pelo Paciente de Cuidados de Saúde
11.
J Alzheimers Dis ; 92(1): 285-294, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36744341

RESUMO

BACKGROUND: Metabolic syndrome (MetS) has been associated with increased risk for Alzheimer's disease and related dementias (ADRD). Understanding the association of MetS risk factors to processing speed and executive function in the pre-clinical stages of ADRD in under-represented groups would offer insight on potential mechanisms through which MetS associates with ADRD risk. OBJECTIVE: Examine association of MetS features and processing speed and executive function across three racial groups. METHODS: Cognitively unimpaired adults from the Wisconsin Alzheimer's Disease Research Center and the Wisconsin Registry for Alzheimer's Disease Prevention completed blood-draws and neuropsychological testing. Six cognitive outcomes were assessed in association to MetS risk factors: Trailmaking Tests A and B, Animal Fluency, Digit Symbol, and composite scores for Processing Speed and Executive Function. Linear mixed effect models were used to assess the relationship between MetS risk factor count and longitudinal cognitive performance across three racialized groups. RESULTS: Participant sample sizes varied by outcome analyzed (N = 714-1,088). African American and Native American groups exhibited higher rates of MetS than non-Hispanic Whites. MetS was associated with processing speed and executive function across all racialized groups. Three-way interaction by racialized group was limited to one cognitive outcome: Trailmaking Test A. CONCLUSION: Metabolic dysfunction incrementally affects cognitive trajectory, with generally similar associations across racial groups. Since racialized groups exhibit higher levels of both MetS and ADRD, MetS may represent a driving factor for increased ADRD risk experience by racialized group and an important and modifiable target through which to reduce risk of ADRD.


Assuntos
Doença de Alzheimer , Síndrome Metabólica , Humanos , Função Executiva , Doença de Alzheimer/complicações , Velocidade de Processamento , Fatores de Risco
12.
Alzheimers Dement (N Y) ; 9(3): e12414, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37752907

RESUMO

Introduction: It is critical to develop more inclusive Alzheimer's disease (AD) research protocols to ensure that historically excluded groups are included in preclinical research and have access to timely diagnosis and treatment. If validated in racialized groups, plasma AD biomarkers and measures of subtle cognitive dysfunction could provide avenues to expand diversity in preclinical AD research. We sought to evaluate the utility of two easily obtained, low-burden disease markers, plasma amyloid beta (Aß)42/40, and intra-individual cognitive variability (IICV), to predict concurrent and longitudinal cognitive performance in a sample of Black adults. Methods: Two hundred fifty-seven Black participants enrolled in the African Americans Fighting Alzheimer's in Midlife (AA-FAIM) study underwent at least one cognitive assessment visit; a subset of n = 235 had plasma samples. Baseline IICV was calculated as the standard deviation across participants' z scores on five cognitive measures: Rey Auditory Verbal Learning Test Delayed Recall, Trail Making Test Parts A and B (Trails A and B), and Boston Naming Test. Using mixed effects regression models, we compared concurrent and longitudinal models to baseline plasma Aß42/40 or IICV by age interactions. PrecivityAD assays quantified baseline plasma Aß42/40. Results: IICV was associated with concurrent/baseline performance on several outcomes but did not modify associations between age and cognitive decline. In contrast, plasma Aß42/40 was unrelated to baseline cognitive performance, but a pattern emerged in interactions with age in longitudinal models of Trails A and B and Rey Auditory Verbal Learning Test total learning trials. Although not significant after correcting for multiple comparisons, low Aß42/40 was associated with faster cognitive declines over time. Discussion: Our results are promising as they extend existing findings to an Black American sample using low-cost, low-burden methods that can be implemented outside of a research center, thus supporting efforts for inclusive AD biomarker research.

13.
Front Hum Neurosci ; 16: 924845, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35967004

RESUMO

Psychological well-being is associated with cognition in later life but has not been examined across diverse populations-including minoritized communities at disproportionately high risk of dementia. Further, most previous work has not been able to examine links between specific facets of psychological well-being and performance within distinct cognitive domains that can capture subclinical impairment. Using a well-characterized sample followed through enrollment in an NIH-funded Alzheimer's Disease Center, we sought to test these associations within three racial groups at baseline. Participants were N = 529 cognitively unimpaired Black, American Indian/Alaska Native (AI/AN), and white middle-aged and older adults (mean age = 63.6, SD = 8.1, range = 45-88 years) enrolled in the Wisconsin Alzheimer's Disease Research Center's Clinical Core. Predictors included validated NIH Toolbox Emotion Battery scales assessing positive affect, general life satisfaction, and meaning and purpose. Outcomes included performance on widely used tests of executive functioning and episodic memory. We conducted race-stratified regression models to assess within-group relationships. Black and AI/AN participants reported lower life satisfaction than white participants. Racial disparities were not observed for positive affect or meaning and purpose scores. Across groups, life satisfaction predicted better executive functioning. Similar associations were observed for positive affect in Black and AI/AN samples but not among whites. In general, well-being measures were not related to performance on tests of episodic memory. Our results highlight well-being as a potentially important determinant of late-life cognitive health, particularly executive functioning, that is modifiable if older adults are connected with appropriate resources and supports. Further, psychological well-being may represent a potent target for brain health interventions tailored for Black and Native communities.

14.
J Alzheimers Dis ; 80(3): 1013-1023, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33646160

RESUMO

BACKGROUND: To fully characterize the risk for dementia associated with cigarette smoking, studies must consider competing risks that hinder the observation of dementia or modify the chance that dementia occurs (i.e., death). Extant research examining the competing risks fails to account for the occurrence of death following dementia, limiting our understanding of the relation between smoking and dementia. OBJECTIVE: Examine the impact of smoking status, lifetime smoking exposure, and duration of abstinence on incident dementia, death following dementia, and death without dementia. METHODS: Multi-state models estimated hazard ratios (HR) for 95% confidence interval (CI) of 10,681 cognitively healthy adults for transition from baseline to dementia, baseline to death, and dementia to death based on smoking status, lifetime cigarette exposure, and abstinence duration. RESULTS: Compared to never smokers, current smokers had increased risk of dementia (HR = 1.66; 95% CI 1.18- 2.32; p = 0.004), and death from baseline (HR = 2.98; 95% CI 2.24- 3.98; p < 0.001) and incident dementia (HR = 1.88; 95% CI 1.08- 3.27; p = 0.03). Pack years increased risk of death from baseline (HR = 1.01; 95% CI 1.00- 1.01; p < 0.001), but not dementia risk (HR = 1.00; 95% CI 1.00- 1.00; p = 0.78) or death following dementia (HR = 1.01; 95% CI 1.00- 1.01; p = 0.05). Recent quitters (quit < 10 years), compared to never smokers, had increased risk of death after baseline (HR = 2.31; 95% CI 1.55- 3.43; p < 0.001), but not dementia (HR = 1.17; 95% CI 0.73- 1.88; p = 0.52) or death following dementia (HR = 1.01; 95% CI 0.42- 2.41; p = 0.99). CONCLUSION: Current smoking increases the risk for dementia and death, but dementia is better attributed to smoking recency than lifetime exposure. Smoking cessation at any age might reduce these risks for cognitively healthy individuals.


Assuntos
Fumar Cigarros/efeitos adversos , Demência/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Abandono do Hábito de Fumar
15.
Patient Educ Couns ; 103(7): 1428-1434, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32098745

RESUMO

OBJECTIVE: Integration of patient-identified goals is a critical element of shared decision-making and patient-provider communication. There is limited information on the goals of patients with multiple medical conditions and high healthcare utilization. We aimed to identify and categorize the goals described by "high-need, high-cost" (HNHC) older patients and their caregivers. METHODS: Using conventional content analysis, we used data from interviews conducted with 17 HNHC older patients (mean age 72.5 years) and 4 caregivers. RESULTS: HNHC older patients and their caregivers used language such as "hopes, wishes, and wants" to describe their goals, which fell into eight categories: alleviating discomfort, having autonomy and control, decreasing treatment burden, maintaining physical functioning and engagement, leaving a legacy, extending life, having satisfying and effective relationships, and experiencing security. CONCLUSION: Our results contribute to knowledge of goals of HNHC patients and provides guidance for improving the patient-provider relationship and communication between HNHC older patients and their healthcare providers. PRACTICE IMPLICATIONS: Our findings can inform provider efforts to assess patient goals and engage high-need, high-cost older patients in shared decision-making. Further, this study contributes to an improved understanding of HNHC older patients to support continued development of effective care models for this population.


Assuntos
Cuidadores , Objetivos , Idoso , Comunicação , Tomada de Decisão Compartilhada , Pessoal de Saúde , Humanos
16.
J Alzheimers Dis ; 75(2): 649-660, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32310160

RESUMO

BACKGROUND: Midlife cardiovascular risk factors increase risk for Alzheimer's disease (AD). Despite disproportionately high cardiovascular disease and dementia rates, African Americans are under-represented in studies of AD risk and research-based guidance on targeting vascular risk factors is lacking. OBJECTIVE: This study investigated relationships between specific cardiovascular risk factors and cerebral perfusion in White and African American adults enriched for AD risk. METHODS: Participants included 397 cognitively unimpaired White (n = 330) and African American (n = 67) adults enrolled in the Wisconsin Alzheimer's Disease Research Center who underwent pseudo-continuous arterial spin labeling MRI. Multiple linear regression models examined independent relationships between cardiovascular risk factors and mean cerebral perfusion. Subsequent interaction and stratified models assessed the role for APOE genotype and race. RESULTS: When risk factor p-values were FDR-adjusted, diastolic blood pressure was significantly associated with mean perfusion. Tobacco use, triglycerides, waist-to-hip ratio, and a composite risk score were not associated with perfusion. Without FDR adjustment, a relationship was also observed between perfusion and obesity, cholesterol, and fasting glucose. Neither APOE genotype nor race moderated relationships between risk factors and perfusion. CONCLUSION: Higher diastolic blood pressure predicted lower perfusion more strongly than other cardiovascular risk factors. This relationship did not vary by racial group or genetic risk for AD, although the African American sample had greater vascular risk burden and lower perfusion rates. Our findings highlight the need to prioritize inclusion of underrepresented groups in neuroimaging studies and to continue exploring the link between modifiable risk factors, cerebrovascular health, and AD risk in underrepresented populations.


Assuntos
Encéfalo/diagnóstico por imagem , Circulação Cerebrovascular/fisiologia , Fatores de Risco de Doenças Cardíacas , Negro ou Afro-Americano , Idoso , Encéfalo/fisiologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Marcadores de Spin , População Branca
17.
J Alzheimers Dis ; 73(2): 671-682, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31815690

RESUMO

BACKGROUND: It is well-documented that African Americans have elevated risk for cognitive impairment and dementia in late life, but reasons for the racial disparities remain unknown. Stress processes have been linked to premature age-related morbidity, including Alzheimer's and related dementias (ADRD), and plausibly contribute to social disparities in cognitive aging. OBJECTIVE: We examined the relationship between stressful life events and cognitive decline among African American and White participants enrolled in the Wisconsin Registry for Alzheimer's Prevention (WRAP). METHODS: Linear mixed models including demographic, literacy, and health-related covariates were used to estimate (1) relationships between a life event index score and decline in cognitive test performance in two domains of executive function (Speed & Flexibility, Working Memory) and one domain of episodic memory (Verbal Learning & Memory) among 1,241 WRAP enrollees, stratified by race, and (2) contributions of stressful life events to racial differences in cognition within the full sample. RESULTS: African Americans (N = 50) reported more stressful life events than Whites (N = 1,191). Higher stress scores associated with poorer Speed & Flexibility performance in both groups, though not with declines across time, and partially explained racial differentials in this domain. Among African Americans only, stressor exposure also associated with age-related decline in Verbal Learning & Memory. Stressor-cognition relationships were independent of literacy and health-related variables. CONCLUSIONS: Greater lifetime stress predicted poorer later-life cognition, and, in a small sample of African Americans, faster declines in a key domain of episodic memory. These preliminary findings suggest that future work in large minority aging cohorts should explore stress as an important source of modifiable, socially-rooted risk for impairment and ADRD in African Americans, who are disproportionately exposed to adverse experiences across the life course.


Assuntos
Disfunção Cognitiva/epidemiologia , Acontecimentos que Mudam a Vida , Estresse Psicológico/epidemiologia , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Envelhecimento Cognitivo/psicologia , Disfunção Cognitiva/psicologia , Estudos de Coortes , Etnicidade/estatística & dados numéricos , Função Executiva , Feminino , Humanos , Modelos Lineares , Masculino , Memória Episódica , Pessoa de Meia-Idade , Testes Neuropsicológicos , Sistema de Registros , Estresse Psicológico/psicologia , População Branca , Wisconsin/epidemiologia
18.
J Alzheimers Dis ; 73(2): 431-442, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31868663

RESUMO

With increased longevity and growth in the number of older adults comes rising rates of individuals with cognitive impairment and dementia. The expansion of this population has important implications for research on aging and dementia syndromes, namely increased enrollment of older individuals in clinical research. Ethical prerogatives, as well as historical underrepresentation of persons with dementia in research studies due to the perceived burden of traditional decisional capacity evaluations, necessitates the development of pragmatic approaches to ascertain decisional abilities in research settings. We outline a protocol used in the Wisconsin Alzheimer's Disease Research Center (ADRC) that adopts a stepped approach to the evaluation of decisional capacity meant to maximize study visit efficiency while preserving participant safety and autonomy. The protocol specifies the structure of the consent process and incorporates a brief semi-structured interview based on Appelbaum & Grisso's theoretical model for evaluating a patient's decisional capacity to provide informed consent to participate in research. This protocol is easily implemented in a research study visit and is designed to minimize participant burden and ensure reliable assessment of decisional capacity in older adults across a wide range of research protocols. The protocol emphasizes capacity optimization, using memory aids and other compensatory strategies to preserve participant autonomy while protecting welfare.


Assuntos
Doença de Alzheimer , Protocolos Clínicos , Tomada de Decisões/ética , Ética em Pesquisa , Idoso , Idoso de 80 Anos ou mais , Humanos , Competência Mental , Pessoa de Meia-Idade
19.
Suicide Life Threat Behav ; 49(6): 1668-1679, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31002425

RESUMO

OBJECTIVE: National Guard service members demonstrate increased suicide risk relative to the civilian population. One potential mechanism for this increased risk may be familiarity with and access to firearms following deployment. This study examined the association between firearm ownership, reasons for ownership, and firearm familiarity with a widely studied suicide risk factor-capability for suicide-among National Guard service members. METHOD: Data were drawn from a cross-sectional survey of National Guard service members conducted immediately post-deployment in 2010. Service members (n = 2,292) completed measures of firearm ownership, firearm familiarity, and capability for suicide. RESULTS: Firearm ownership and increased firearm familiarity were associated with capability for suicide (d = 0.47 and r = .25, for firearm ownership and familiarity, respectively). When examined separately based on reason for ownership, owning a firearm for self-protection (d = 0.33) or owning a military weapon (d = 0.27) remained significantly associated with capability for suicide. In contrast, owning a firearm for hobby purposes did not (d = -0.07). CONCLUSION: Our findings support theories emphasizing practical aspects of suicide (e.g., three-step theory) and suggest that owning firearms, in particular for self-protection, along with familiarity using firearms may be associated with greater capability for suicide.


Assuntos
Armas de Fogo/estatística & dados numéricos , Militares , Propriedade/estatística & dados numéricos , Prevenção do Suicídio , Suicídio , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Militares/psicologia , Militares/estatística & dados numéricos , Medição de Risco , Fatores de Risco , Suicídio/psicologia , Suicídio/estatística & dados numéricos
20.
Gen Hosp Psychiatry ; 36(6): 637-43, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25264340

RESUMO

OBJECTIVE: This study examined the feasibility and efficacy of a psychosocial intervention to address high-risk substance use in patients scheduled for elective surgery. METHOD: A group-format intervention, based on motivational interviewing principles, was provided prior to elective surgery to 107 participants with at-risk substance use, identified using the Alcohol Use Disorders Identification Test - Condensed (AUDIT-C) and self-report of illicit drug use. Patient satisfaction was assessed with an anonymous survey. Within-subject comparisons of substance use at baseline and at a postoperative follow-up evaluation were conducted. A control group of 67 surgery patients reporting high-risk substance use completed baseline assessments and received usual care. Medical outcomes and measures of utilization were compared between groups. RESULTS: Patient satisfaction with the brief intervention was high. A paired t test comparing average pre- and post-AUDIT-C scores showed significant reduction in substance use postsurgery (t = 9.94, P = .000), and participants reported intention to maintain reduced substance use levels. Between-group analyses revealed no significant differences in medical complications or utilization. CONCLUSION: Findings suggest that a group-based intervention for substance use disorder can be implemented as part of preoperative care and may contribute to decreased substance use prior to and following surgery. Further work is needed to identify methods to reduce adverse medical outcomes in surgical patients.


Assuntos
Alcoolismo/reabilitação , Entrevista Motivacional/métodos , Complicações Pós-Operatórias/prevenção & controle , Psicoterapia Breve , Psicoterapia de Grupo , Síndrome de Abstinência a Substâncias/prevenção & controle , Adulto , Idoso , Depressores do Sistema Nervoso Central/efeitos adversos , Procedimentos Cirúrgicos Eletivos , Etanol/efeitos adversos , Estudos de Viabilidade , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Complicações Pós-Operatórias/epidemiologia , Síndrome de Abstinência a Substâncias/etiologia , Transtornos Relacionados ao Uso de Substâncias/reabilitação
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