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Sökning: WFRF:(Vellas Bruno)

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1.
  • Belger, Mark, et al. (författare)
  • Determinants of time to institutionalisation and related healthcare and societal costs in a community-based cohort of patients with Alzheimer's disease dementia
  • 2019
  • Ingår i: European Journal of Health Economics. - 1618-7598 .- 1618-7601. ; 20:3, s. 343-355
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: To examine the costs of caring for community-dwelling patients with Alzheimer’s disease (AD) dementia in relation to the time to institutionalisation.Methods: GERAS was a prospective, non-interventional cohort study in community-dwelling patients with AD dementia and their caregivers in three European countries. Using identified factors associated with time to institutionalisation, models were developed to estimate the time to institutionalisation for all patients. Estimates of monthly total societal costs, patient healthcare costs and total patient costs (healthcare and social care together) prior to institutionalisation were developed as a function of the time to institutionalisation.Results: Of the 1495 patients assessed at baseline, 307 (20.5%) were institutionalised over 36 months. Disease severity at baseline [based on Mini-Mental State Examination (MMSE) scores] was associated with risk of being institutionalised during follow up (p < 0.001). Having a non-spousal informal caregiver was associated with a faster time to institutionalisation (944 fewer days versus having a spousal caregiver), as was each one-point worsening in baseline score of MMSE, instrumental activities of daily living and behavioural disturbance (67, 50 and 30 fewer days, respectively). Total societal costs, total patient costs and, to a lesser extent, patient healthcare-only costs were associated with time to institutionalisation. In the 5 years pre-institutionalisation, monthly total societal costs increased by more than £1000 (€1166 equivalent for 2010) from £1900 to £3160 and monthly total patient costs almost doubled from £770 to £1529.Conclusions: Total societal costs and total patient costs rise steeply as community-dwelling patients with AD dementia approach institutionalisation.
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2.
  • Dubois, Bruno, et al. (författare)
  • Advancing research diagnostic criteria for Alzheimer's disease: the IWG-2 criteria.
  • 2014
  • Ingår i: Lancet neurology. - 1474-4465. ; 13:6, s. 614-29
  • Forskningsöversikt (refereegranskat)abstract
    • In the past 8 years, both the International Working Group (IWG) and the US National Institute on Aging-Alzheimer's Association have contributed criteria for the diagnosis of Alzheimer's disease (AD) that better define clinical phenotypes and integrate biomarkers into the diagnostic process, covering the full staging of the disease. This Position Paper considers the strengths and limitations of the IWG research diagnostic criteria and proposes advances to improve the diagnostic framework. On the basis of these refinements, the diagnosis of AD can be simplified, requiring the presence of an appropriate clinical AD phenotype (typical or atypical) and a pathophysiological biomarker consistent with the presence of Alzheimer's pathology. We propose that downstream topographical biomarkers of the disease, such as volumetric MRI and fluorodeoxyglucose PET, might better serve in the measurement and monitoring of the course of disease. This paper also elaborates on the specific diagnostic criteria for atypical forms of AD, for mixed AD, and for the preclinical states of AD.
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3.
  • Ewers, Michael, et al. (författare)
  • Body mass index is associated with biological CSF markers of core brain pathology of Alzheimer's disease
  • 2012
  • Ingår i: Neurobiology of Aging. - : Elsevier. - 1558-1497. ; 33:8, s. 1599-1608
  • Tidskriftsartikel (refereegranskat)abstract
    • Weight changes are common in aging and Alzheimer's disease (AD) and postmortem findings suggest a relation between lower body mass index (BMI) and increased AD brain pathology. In the current multicenter study, we tested whether lower BMI is associated with higher core AD brain pathology as assessed by cerebrospinal fluid (CSF)-based biological markers of AD in 751 living subjects: 308 patients with AD, 296 subjects with amnestic mild cognitive impairment (MCI), and 147 elderly healthy controls (HC). Based upon a priori cutoff values on CSF concentration of total tau and beta-amyloid (A beta(1-42)), subjects were binarized into a group with abnormal CSF biomarker signature (CSF+) and those without (CSF-). Results showed that BMI was significantly lower in the CSF+ when compared with the CSF- group (F = 27.7, df = 746, p < 0.001). There was no interaction between CSF signature and diagnosis or apolipoprotein E (ApoE) genotype. In conclusion, lower BMI is indicative of AD pathology as assessed with CSF-based biomarkers in demented and nondemented elderly subjects. Published by Elsevier Inc.
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4.
  • Reed, Catherine, et al. (författare)
  • What Drives Country Differences in Cost of Alzheimer's Disease? : An Explanation from Resource Use in the GERAS Study
  • 2017
  • Ingår i: Journal of Alzheimer's Disease. - : IOS PRESS. - 1387-2877 .- 1875-8908. ; 57:3, s. 797-812
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Country differences in resource use and costs of Alzheimer's disease (AD) may be driven by differences in health care systems and resource availability. Objective: To compare country resource utilization drivers of societal costs for AD dementia over 18 months. Methods: GERAS is an observational study in France (n = 419), Germany (n = 550), and the UK (n = 526). Resource use of AD patients and caregivers contributing to >1% of total societal costs (year 2010) was assessed for country differences, adjusting for participant characteristics. Results: Mean 18-month societal costs per patient were France (sic)33,339, Germany (sic)38,197, and UK (sic)37,899 (32,501) pound. Caregiver time spent on basic and instrumental activities of daily living (ADL) contributed the most to societal costs (54% France, 64% Germany, 65% UK). Caregivers in France spent less time on ADL than UK caregivers and missed fewer work days than in other countries. Compared with other countries, patients in France used more community care services overall and were more likely to use home aid. Patients in Germany were least likely to use temporary accommodation or to be institutionalized at 18 months. UK caregivers spent the most time on instrumental ADL, UK patients used fewest outpatient resources, and UK patients/caregivers were most likely to receive financial support. Conclusion: Caregiver time on ADL contributed the most to societal costs and differed across countries, possibly due to use of community care services and institutionalization. Other resources had different patterns of use across countries, reflecting country-specific health and social care systems.
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5.
  • Barreto, Philipe de Souto, et al. (författare)
  • Recommendations on Physical Activity and Exercise for Older Adults Living in Long-Term Care Facilities : A Taskforce Report
  • 2016
  • Ingår i: Journal of the American Medical Directors Association. - 1525-8610 .- 1538-9375. ; 17:5, s. 381-392
  • Tidskriftsartikel (refereegranskat)abstract
    • A taskforce, under the auspices of The International Association of Gerontology and Geriatrics-Global Aging Research Network (IAGG-GARN) and the IAGG European Region Clinical Section, composed of experts from the fields of exercise science and geriatrics, met in Toulouse, in December 2015, with the aim of establishing recommendations of physical activity and exercise for older adults living in long-term care facilities (LTCFs). Due to the high heterogeneity in terms of functional ability and cognitive function that characterizes older adults living in LTCFs, taskforce members established 2 sets of recommendations: recommendations for reducing sedentary behaviors for all LTCF residents and recommendations for defining specific, evidence-based guidelines for exercise training for subgroups of LTCF residents. To promote a successful implementation of recommendations, taskforce experts highlighted the importance of promoting residents' motivation and pleasure, the key factors that can be increased when taking into account residents' desires, preferences, beliefs, and attitudes toward physical activity and exercise. The importance of organizational factors related to LTCFs and health care systems were recognized by the experts. In conclusion, this taskforce report proposes standards for the elaboration of strategies to increase physical activity as well as to prescribe exercise programs for older adults living in LTCFs. This report should be used as a guide for professionals working in LTCF settings.
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6.
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7.
  • Bremer, Patrick, et al. (författare)
  • Informal and formal care : Substitutes or complements in care for people with dementia? Empirical evidence for 8 European countries
  • 2017
  • Ingår i: Health Policy. - : Elsevier. - 0168-8510. ; 121:6, s. 613-622
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: In order to contain public health care spending, European countries attempt to promote informal caregiving. However, such a cost reducing strategy will only be successful if informal caregiving is a substitute for formal health care services. We therefore analyze the effect of informal caregiving for people with dementia on the use of several formal health care services. Study design: The empirical analysis is based on primary data generated by the EU-project ´RightTimePlaceCare` which is conducted in 8 European countries. 1223 people with dementia receiving informal care at home were included in the study.
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8.
  • Bruyere, Olivier, et al. (författare)
  • How clinical practitioners assess frailty in their daily practice : an international survey
  • 2017
  • Ingår i: Aging Clinical and Experimental Research. - : SPRINGER. - 1594-0667 .- 1720-8319. ; 29:5, s. 905-912
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Various operational definitions have been proposed to assess the frailty condition among older individuals. Our objective was to assess how practitioners measure the geriatric syndrome of frailty in their daily routine.Methods: An online survey was sent to national geriatric societies affiliated to the European Union Geriatric Medicine Society (EUGMS) and to members of the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO).Results: A total of 388 clinicians from 44 countries answered to the survey. Most of them were medical doctors (93%), and their primary field of practice was geriatrics (83%). Two hundred and five clinicians (52.8%) always assessed frailty in their daily practice, 38.1% reported to "sometimes" measure it, and 9.1% never assess it. A substantial proportion of clinicians (64.9%) diagnose frailty using more than one instrument. The most widely used tool was the gait speed test, adopted by 43.8% of the clinicians, followed by clinical frailty scale (34.3%), the SPPB test (30.2%), the frailty phenotype (26.8%) and the frailty index (16.8%).Conclusion: A variety of tools is used to assess frailty of older patients in clinical practice highlighting the need for standardisation and guidelines.
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9.
  • Buerger, Katharina, et al. (författare)
  • Validation of Alzheimer's disease CSF and plasma biological markers: the multicentre reliability study of the pilot European Alzheimer's Disease Neuroimaging Initiative (E-ADNI).
  • 2009
  • Ingår i: Experimental gerontology. - 1873-6815. ; 44:9, s. 579-85
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Alzheimer's Disease Neuroimaging Initiatives ("ADNI") aim to validate neuroimaging and biochemical markers of Alzheimer's disease (AD). Data of the pilot European-ADNI (E-ADNI) biological marker programme of cerebrospinal fluid (CSF) and plasma candidate biomarkers are reported. METHODS: Six academic EADC centres recruited 49 subjects (healthy controls, subjects with mild cognitive impairment (MCI) and AD). We measured CSF beta-amyloid 42 (CSF Abeta42), total tau-protein (t-tau), phosphorylated tau-proteins (P-tau181, P-tau231), plasma beta-amyloid 40 and 42 (Abeta40/Abeta42). Immediate fresh shipment was compared to freezing and later shipment on dry ice. RESULTS: CSF T-tau (fresh samples) was increased in AD versus controls (p=0.049), CSF Abeta42 (frozen samples) was decreased in MCI and AD (p=0.02), as well as plasma Abeta40 (fresh and frozen samples) in AD (p=0.049 and p=0.016). Pooled values of neurochemical parameters and ratios thereof were different between centres (p<0.005). Analysis of frozen samples yielded higher diagnostic accuracy than immediate fresh shipment with 100% (fresh: 100%) correctly classified in control subjects, 100% (78%) in MCI, 91% (91%) in AD. CONCLUSION: The use of frozen rather than fresh samples renders higher diagnostic accuracy within a multicentre context. We confirmed the feasibility of a multicentre AD biomarker programme for future clinical trials.
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10.
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