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Search: WFRF:(Fratiglioni Laura) > (2020-2024)

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21.
  • Harber-Aschan, Lisa, 1987-, et al. (author)
  • Socioeconomic differences in older adults’ unplanned hospital admissions : the role of health status and social network 
  • 2023
  • In: Age and Ageing. - 0002-0729 .- 1468-2834. ; 52:4
  • Journal article (peer-reviewed)abstract
    • Background: the socioeconomic distribution of unplanned hospital admissions in older adults is poorly understood. We compared associations of two life-course measures of socioeconomic status (SES) with unplanned hospital admissions while comprehensively accounting for health, and examined the role of social network in this association.Methods: in 2,862 community-dwelling adults aged 60+ in Sweden, we derived (i) an aggregate life-course SES measure grouping individuals into Low, Middle or High SES based on a summative score, and (ii) a latent class measure that additionally identified a Mixed SES group, characterised by financial difficulties in childhood and old age. The health assessment combined measures of morbidity and functioning. The social network measure included social connections and support components. Negative binomial models estimated the change in hospital admissions over 4 years in relation to SES. Stratification and statistical interaction assessed effect modification by social network.Results: adjusting for health and social network, unplanned hospitalisation rates were higher for the latent Low SES and Mixed SES group (incidence rate ratio [IRR] = 1.38, 95% confidence interval [CI]: 1.12–1.69, P = 0.002; IRR = 2.06, 95% CI: 1.44–2.94, P < 0.001; respectively; ref: High SES). Mixed SES was at a substantially greater risk of unplanned hospital admissions among those with poor (and not rich) social network (IRR: 2.43, 95% CI: 1.44–4.07; ref: High SES), but the statistical interaction test was non-significant (P = 0.493).Conclusion: socioeconomic distributions of older adults’ unplanned hospitalisations were largely driven by health, although considering SES dynamics across life can reveal at-risk sub-populations. Financially disadvantaged older adults might benefit from interventions aimed at improving their social network.
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22.
  • Hendel, Merle K., et al. (author)
  • Impact of Pneumonia on Cognitive Aging : A Longitudinal Propensity-Matched Cohort Study 
  • 2022
  • In: The journals of gerontology. Series A, Biological sciences and medical sciences. - : Oxford University Press (OUP). - 1079-5006 .- 1758-535X. ; 78:8, s. 1453-1460
  • Journal article (peer-reviewed)abstract
    • Background: Acute clinical events, such as pneumonia, may impact physical functionality but their effect on cognition and the possible duration of this effect remains to be quantified. This study investigated the impact of pneumonia on cognitive trajectories and dementia development in older people.Methods: Data were obtained from 60+ years old individuals, who were assessed from 2001 to 2018 in the population-based SNAC-K study (Sweden). Participants were eligible if they were not institutionalized, had no dementia, and did not experience pneumonia 5 years prior to baseline (N = 2 063). A propensity score was derived to match 1:3 participants hospitalized with a diagnosis of pneumonia (N = 178), to nonexposed participants (N = 534). Mixed linear models were used to model cognitive decline. The hazard of dementia, clinically diagnosed by physicians following Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV, was estimated using Cox regression models.Results: We found a transient impact of pneumonia on cognitive decline in the first 2.5 years (B = −0.94, 95% confidence interval [CI] −1.75, −0.15). The hazard ratio (HR) for dementia was not statistically significantly increased in pneumonia participants (HR = 1.17, 95%CI 0.82, 1.66).Conclusions: The transient impact of pneumonia on cognitive function suggests an increased need of health care for patients after a pneumonia-related hospitalization and reinforces the relevance of pneumonia prevention.
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23.
  • Imahori, Yume, et al. (author)
  • Association of ischemic heart disease with long-term risk of cognitive decline and dementia : A cohort study
  • 2023
  • In: Alzheimer's & Dementia. - 1552-5260 .- 1552-5279. ; 19:12, s. 5541-5549
  • Journal article (peer-reviewed)abstract
    • INTRODUCTION: The independent and joint effect of ischemic heart disease (IHD) and coexisting atrial fibrillation (AF) and heart failure (HF) on dementia risk is largely unknown.METHODS: This population-based cohort study included 2568 dementia-free participants (age ≥60 years) in SNAC-K, who were regularly examined from 2001–2004 through 2013–2016. Dementia was diagnosed following the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) criteria. Global cognitive function was assessed using a global cognitive composite z-score derived from five cognitive domains. Data were analyzed using Cox, Fine-Gray, and linear mixed-effects models.RESULTS: Overall, IHD at baseline was associated with multivariable-adjusted hazard ratio (HR) of 1.39 (95% confidence interval = 1.06−1.82) for dementia and multivariable-adjusted β-coefficient of −0.02 (−0.03 to −0.01) for annual changes in global cognitive z-score, independent of AF, HF, and cerebrovascular disease. Coexisting AF or HF did not add further risk to dementia and cognitive decline.DISCUSSION: IHD is independently associated with dementia and cognitive decline in older adults, whereas coexisting AF/HF is not associated with an increased risk.
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24.
  • Imahori, Yume, et al. (author)
  • Association of resting heart rate with cognitive decline and dementia in older adults : A population-based cohort study
  • 2022
  • In: Alzheimer's & Dementia. - : Wiley. - 1552-5260 .- 1552-5279. ; 18:10, s. 1779-1787
  • Journal article (peer-reviewed)abstract
    • Introduction: Resting heart rate (RHR) predicts future risk for cardiovascular disease (CVD). However, longitudinal studies investigating the relationship of RHR with cognitive decline are scarce.Methods: This population-based cohort study included 2147 participants (age≥60) in SNAC-K who were free of dementia and regularly followed from 2001–2004 to 2013–2016. RHR was assessed with electrocardiogram. Dementia was diagnosed following the Diagnostic and Statistical Manual of Mental Disorders 4th Revision criteria. Global cognitive function was assessed using Mini-Mental State Examination (MMSE). Data were analyzed using Cox and linear mixed-effects models.Results: RHR≥80 (vs. 60–69) bpm was associated with a multi-adjusted hazard ratio of 1.55 (95% confidence interval 1.06−2.27) for dementia. The association remained significant after excluding participants with prevalent and incident CVDs. Similarly, RHR≥80 bpm was associated with a multi-adjusted β-coefficient of –0.13 (–0.21 to –0.04) for MMSE score.Discussion: Higher RHR is associated with increased risk for dementia and faster cognitive decline independent of CVDs in a general population of elderly people.
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25.
  • Kirvalidze, Mariam, et al. (author)
  • Effectiveness of integrated person-centered interventions for older people's care : Review of Swedish experiences and experts' perspective
  • 2024
  • In: Journal of Internal Medicine. - : John Wiley & Sons. - 0954-6820 .- 1365-2796.
  • Journal article (peer-reviewed)abstract
    • Older adults have multiple medical and social care needs, requiring a shift toward an integrated person-centered model of care. Our objective was to describe and summarize Swedish experiences of integrated person-centered care by reviewing studies published between 2000 and 2023, and to identify the main challenges and scientific gaps through expert discussions. Seventy-three publications were identified by searching MEDLINE and contacting experts. Interventions were categorized using two World Health Organization frameworks: (1) Integrated Care for Older People (ICOPE), and (2) Integrated People-Centered Health Services (IPCHS). The included 73 publications were derived from 31 unique and heterogeneous interventions pertaining mainly to the micro- and meso-levels. Among publications measuring mortality, 15% were effective. Subjective health outcomes showed improvement in 24% of publications, morbidity outcomes in 42%, disability outcomes in 48%, and service utilization outcomes in 58%. Workshop discussions in Stockholm (Sweden), March 2023, were recorded, transcribed, and summarized. Experts emphasized: (1) lack of rigorous evaluation methods, (2) need for participatory designs, (3) scarcity of macro-level interventions, and (4) importance of transitioning from person- to people-centered integrated care. These challenges could explain the unexpected weak beneficial effects of the interventions on health outcomes, whereas service utilization outcomes were more positively impacted. Finally, we derived a list of recommendations, including the need to engage care organizations in interventions from their inception and to leverage researchers' scientific expertise. Although this review provides a comprehensive snapshot of interventions in the context of Sweden, the findings offer transferable perspectives on the real-world challenges encountered in this field. image
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26.
  • Kootar, S., et al. (author)
  • Validation of the CogDrisk Instrument as Predictive of Dementia in Four General Community-Dwelling Populations
  • 2023
  • In: The Journal of Prevention of Alzheimer's Disease. - : SERDI. - 2274-5807 .- 2426-0266. ; :10, s. 478-487
  • Journal article (peer-reviewed)abstract
    • Background: Lack of external validation of dementia risk tools is a major limitation for generalizability and translatability of prediction scores in clinical practice and research.Objectives: We aimed to validate a new dementia prediction risk tool called CogDrisk and a version, CogDrisk-AD for predicting Alzheimer’s disease (AD) using cohort studies.Design, Setting, Participants and Measurements: Four cohort studies were identified that included majority of the dementia risk factors from the CogDrisk tool. Participants who were free of dementia at baseline were included. The predictors were component variables in the CogDrisk tool that include self-reported demographics, medical risk factors and lifestyle habits. Risk scores for Any Dementia and AD were computed and Area Under the Curve (AUC) was assessed. To examine modifiable risk factors for dementia, the CogDrisk tool was tested by excluding age and sex estimates from the model.Results: The performance of the tool varied between studies. The overall AUC and 95% CI for predicting dementia was 0.77 (0.57, 0.97) for the Swedish National study on Aging and Care in Kungsholmen, 0.76 (0.70, 0.83) for the Health and Retirement Study - Aging, Demographics and Memory Study, 0.70 (0.67,0.72) for the Cardiovascular Health Study Cognition Study, and 0.66 (0.62,0.70) for the Rush Memory and Aging Project.Conclusions: The CogDrisk and CogDrisk-AD performed well in the four studies. Overall, this tool can be used to assess individualized risk factors of dementia and AD in various population settings.
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27.
  • Laukka, Erika J., et al. (author)
  • Combined Genetic Influences on Episodic Memory Decline in Older Adults Without Dementia
  • 2020
  • In: Neuropsychology. - : American Psychological Association (APA). - 0894-4105 .- 1931-1559. ; 34:6, s. 654-666
  • Journal article (peer-reviewed)abstract
    • Objective: Although heritability explains a large proportion of the variance in old-age cognition, studies on the influence of specific genes have been inconclusive. We investigated the individual and combined effects of four single polymorphisms, previously associated with episodic memory, on cognitive or performance and rate of change. Method: Participants were 2490 individuals without dementia (mean age = 72 years) from the population-based Swedish National Study on Aging and Care in Kungsholmen (SNAC-K). Genotyping was performed for APOE (rs429358, rs7412), BDNF (rs6265), KIBRA (rs17070145), and CLSTN2 (rs6439886). We used latent difference score models to estimate the effects of age and genetic variation on level and change in five latent cognitive factors: episodic and semantic memory, letter and category fluency, and perceptual speed. Results: Of the individual genes, only APOE was associated with cognitive performance; epsilon 4 carriers showed lower perceptual speed performance and faster category fluency decline. A cumulative score, combining APOE, BDNF, KIBRA and CLSTN2, was associated with faster cognitive decline that was specific to the episodic memory domain (regression coefficient -0.064, p < .01). Similar results were obtained for a score not including APOE. Conclusions: Results suggest a benefit of investigating the combined influence of polymorphisms related to specific mechanistic factors.
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28.
  • Laukka, Erika J., et al. (author)
  • Markers of olfactory dysfunction and progression to dementia : A 12-year population-based study
  • 2023
  • In: Alzheimer's & Dementia. - : John Wiley & Sons. - 1552-5260 .- 1552-5279. ; 19:7, s. 3019-3027
  • Journal article (peer-reviewed)abstract
    • Introduction: We evaluated markers of olfactory dysfunction (OD) for estimating hazard of dementia in older adults.Methods: Mild (hyposmia) and severe (anosmia) OD was classified in a population-based study of dementia-free persons (SNAC-K; n = 2473; mean age = 70 years) using the Sniffin sticks odor identification task. Combined variables were created for objective and subjective OD and for OD and APOE status. Hazard of dementia across 12 years was estimated with Cox regression.Results: OD was associated with increased hazard of dementia (2.01; 95% confidence interval [CI] 1.60-2.52), with the strongest association for anosmia (2.92; 95% CI 2.14-3.98). Results remained consistent after adjusting for potential confounders and across age and sex subgroups. APOE ε4 carriers with anosmia had the highest hazard of dementia (ε4: 6.95; 95% CI 4.16-11.62; ε4/ε4: 19.84; 95% CI 6.17-63.78).Discussion: OD is associated with increased risk of dementia, especially severe impairment in combination with genetic risk of Alzheimer's disease.
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29.
  • Li, Yuanjing, et al. (author)
  • Association Between Behavioral, Biological, and Genetic Markers of Cardiovascular Health and MRI Markers of Brain Aging : A Cohort Study
  • 2023
  • In: Neurology. - 0028-3878 .- 1526-632X. ; 100:1, s. e38-e48
  • Journal article (peer-reviewed)abstract
    • Background and Objective The life’s simple 7 approach was proposed to define cardiovascular health (CVH) metrics. We sought to investigate the associations between behavioral, biological, and genetic markers for CVH and vascular brain aging in older adults.Methods This population-based cohort study included participants who had repeated brain MRI measures from 2001 to 2003 to 2007–2010 (i.e., count of perivascular spaces, volumes of white matter hyperintensity [WMH] and gray matter, and lacunes). At baseline, global, behavioral, and biological CVH metrics were defined and scored following the life’s simple 7 approach and categorized into unfavorable, intermediate, and favorable profiles according to tertiles. The metabolic genetic risk score was calculated by counting 15 risk alleles associated with hypertension, diabetes, or dyslipidemia. Data were analyzed using linear mixed-effects and Cox proportional hazards models, adjusting for age, sex, and education.Results The study sample consisted of 317 participants (age 60 years or older; 61.8% women). Favorable and intermediate (vs unfavorable) global CVH profiles were related to slower WMH progression, with β-coefficients (95% CI) being −0.019(-0.035–0.002) and −0.018(-0.034–0.001), respectively. Favorable and intermediate (vs unfavorable) biological CVH profiles were significantly related to slower WMH increase only in people aged 60–72 years. CVH profiles were not related to progression of other brain measures. Furthermore, a higher metabolic genetic risk score (range: 6–21) was associated with faster WMH increase (β-coefficient = 0.005; 95% CI: 0.003–0.008). There were statistical interactions of metabolic genetic risk score with global and behavioral CVH profiles on WMH accumulation. A higher metabolic genetic risk score was related to faster WMH accumulation, with β-coefficients being 0.015(0.007–0.023), 0.005(0.001–0.009), and 0.003(-0.001 to 0.006) among people with unfavorable, intermediate, and favorable global CVH profiles, respectively; the corresponding β-coefficients were 0.013(0.006–0.020), 0.006(0.003–0.009), and 0.002(-0.002 to 0.006) among people with unfavorable, intermediate, and favorable behavioral CVH profiles.Discussion Intermediate to favorable global CVH profiles in older adults are associated with slower vascular brain aging. The association of metabolic genetic risk load with accelerated vascular brain aging was evident among people with unfavorable to intermediate, but not favorable, CVH profiles. These findings highlight the importance of adhering to favorable CVH profiles, especially healthy behaviors, in vascular brain health.
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30.
  • Li, Yuanjing, et al. (author)
  • Progression of neuroimaging markers of cerebral small vessel disease in older adults : A 6-year follow-up study
  • 2022
  • In: Neurobiology of Aging. - : Elsevier BV. - 0197-4580 .- 1558-1497. ; 112, s. 204-211
  • Journal article (peer-reviewed)abstract
    • We investigated progression and interrelationships of cerebral small vessel disease (cSVD) markers. This population-based cohort study included 325 participants (age ≥ 60 years) who had repeated measures of cSVD markers over 6 years: white-matter hyperintensity (WMH), perivascular spaces (PVS), lacunes, and grey-matter (GM) and ventricular volumes. We found that all cSVD markers, except PVS, progressed faster with increasing age. Regional WMH progressed faster in males and less-educated people (p < 0.05). Each 10-point increment in global WMH score was associated with multi-adjusted hazard ratio of 1.78 (95% CI = 1.50‒2.10) for incident lacunes and multi-adjusted β-coefficients of 0.15 (0.08–0.22), -0.37 (-0.58‒-0.16), and 0.11 (0.03‒0.18) for annual changes of global WMH score, GM volume, and ventricular volume, respectively. The corresponding figures associated with per 10-PVS increment were 1.14 (1.01‒1.28), 0.07 (0.03‒0.11), -0.18 (-0.32‒-0.04), and 0.02 (-0.03‒0.07). Prevalent lacunes were related to multi-adjusted β-coefficients of 0.29 (0.00‒0.58), 0.22 (0.05‒0.38), 0.10 (0.01‒0.18), and -0.93 (-1.83‒-0.03) for annual changes of global, deep, and periventricular WMH scores and GM volume, respectively. These results suggest that cSVD progresses faster in older, male, and less-educated people, and that greater loads of WMH, PVS, and lacunes anticipate faster cSVD progression.
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Fratiglioni, Laura (69)
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