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Association of radiomic features of skeletal muscle on CT images with muscle function and physical performance in older men. 老年男性骨骼肌CT图像放射学特征与肌肉功能和身体表现的关系。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag057
Megan Hetherington-Rauth,Tyler A Mansfield,Leon Lenchik,Ashley A Weaver,Deborah M Kado,Nancy E Lane,Eric Orwoll,Peggy M Cawthon
BACKGROUNDMachine learning applied to computed tomography (CT) images captures variations in skeletal muscle texture and structure not detectable by conventional measures. These novel 'radiomic' features may offer added value in predicting muscle function and physical performance beyond traditional CT-derived muscle area and density. We aimed to identify radiomic features of skeletal muscle associated with grip strength, leg power and walking speed in older men.METHODSIn the Osteoporotic Fractures in Men study (n = 3404; 73.8 ± 5.9 years), participants underwent baseline CT scans (trunk L1, L3; right and left thigh) and assessments of grip strength, 6 m walk and leg power (Nottingham Power Rig). Muscle area and density were derived from automatically segmented CT images. Radiomic features were extracted using PyRadiomics. Elastic net regression and factor analysis identified key radiomic features; associations with muscle function/performance were assessed using regression models.RESULTSFactor analysis identified nine factors for Trunk-L1 and eight for the other regions. Trunk-based factors significantly improved model fit for leg power, grip strength and walking speed (P < .05). Factor 1, representing body size and muscle texture complexity, was the most consistent predictor across outcomes. The Gray-Level Co-occurrence Matrix feature 'cluster prominence' was inversely associated with walking speed (β = -0.06 at L1; -0.05 at L3) and leg power (β = -0.05 at L1), independent of age, height, weight, muscle CSA, muscle density and technical group.CONCLUSIONCT-derived radiomic features in the trunk region may reflect skeletal muscle structural characteristics that independently relate to strength, power and mobility in older men.
应用于计算机断层扫描(CT)图像的机器学习捕获了传统测量方法无法检测到的骨骼肌纹理和结构的变化。这些新的“放射学”特征可能在预测肌肉功能和身体表现方面提供附加价值,而不是传统的ct衍生的肌肉面积和密度。我们旨在确定老年男性骨骼肌与握力、腿部力量和步行速度相关的放射学特征。方法在男性骨质疏松性骨折研究中(n = 3404; 73.8±5.9岁),参与者接受基线CT扫描(躯干L1、L3、左右大腿),并评估握力、6米步行和腿部力量(Nottingham power Rig)。从自动分割的CT图像中提取肌肉面积和密度。利用PyRadiomics提取放射组学特征。弹性网回归和因子分析确定了关键的放射性特征;使用回归模型评估与肌肉功能/性能的关联。结果因子分析确定了Trunk-L1的9个因子,其他区域的8个因子。躯干因子显著改善了模型对腿部力量、握力和步行速度的拟合(P < 0.05)。代表体型和肌肉纹理复杂性的因素1是所有结果中最一致的预测因素。灰色共发生矩阵特征“聚类突出”与步行速度(L1 = -0.06, L3 = -0.05)和腿部力量(L1 = -0.05)呈负相关,与年龄、身高、体重、肌肉CSA、肌肉密度和技术组别无关。结论ct衍生的躯干区域放射学特征可能反映了老年男性骨骼肌结构特征,这些特征与力量、力量和活动能力独立相关。
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引用次数: 0
The association between midlife neighbourhood walkability and Alzheimer's disease in women: a prospective nested case-control study. 中年妇女社区步行与阿尔茨海默病之间的关系:一项前瞻性巢式病例对照研究
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag054
Emma Walker,Fen Wu,Andrew G Rundle,Simin Hua,James W Quinn,Kathryn M Neckerman,Yelena Afanasyeva,Alan A Arslan,Karen L Koenig,Anne Zeleniuch-Jacquotte,Yu Chen
BACKGROUNDThe role of modifiable environmental factors in Alzheimer's disease (AD) risk remains poorly understood. Built environment features such as neighbourhood walkability (NW) may influence long-term cognitive health among women.METHODSThe New York University Women's Health Study recruited 14 273 cognitively healthy women aged 35-65 years between 1985 and 1991, with follow-up for over 30 years. We geocoded residential addresses for each participant to derive a validated four-item baseline NW measure and a two-item average annual NW index over the follow-up period. We conducted a nested case-control study of 1865 AD cases identified via linkage to Medicare claims during follow-up matched to 3730 controls on age, race/ethnicity and Medicare coverage using risk-set sampling. We used conditional logistic regression to estimate odds ratios (ORs) and 95% confidence intervals for AD in relation to tertiles of NW measures, adjusting for potential confounders. Subgroup analyses examined potential effect modification.RESULTSCompared with women living in areas with the lowest baseline NW, those in the middle and highest tertiles had lower odds of having a diagnosis of AD during follow-up, with an OR of 0.95 (0.82-1.11) and 0.83 (0.71-0.98), respectively (P-trend = .03). Results were similar when using average annual NW. The association did not differ appreciably by age, smoking status, education or body mass index.CONCLUSIONSHigher midlife NW was associated with reduced odds of AD later in life. These findings highlight the potential for built environment interventions to promote cognitive health and support healthy ageing in women.
背景:可改变的环境因素在阿尔茨海默病(AD)风险中的作用仍然知之甚少。建成环境的特点,如邻里步行能力(NW)可能影响妇女的长期认知健康。方法纽约大学妇女健康研究于1985 - 1991年间招募了14 273名年龄在35-65岁之间认知健康的妇女,随访超过30年。我们对每个参与者的居住地址进行地理编码,以得出一个经过验证的四项基准西北西北测量和一个在随访期间的两项平均年度西北西北指数。我们对1865例AD病例进行了巢式病例对照研究,在随访期间通过与医疗保险索赔的联系确定,并使用风险集抽样将3730例年龄、种族/民族和医疗保险覆盖率的对照进行匹配。我们使用条件逻辑回归来估计AD与NW测量的五分位数相关的比值比(ORs)和95%置信区间,并对潜在的混杂因素进行了调整。亚组分析检查了潜在的效果改变。结果与生活在最低基线NW地区的妇女相比,生活在中等和最高分位数的妇女在随访期间诊断为AD的几率较低,OR分别为0.95(0.82-1.11)和0.83 (0.71-0.98)(p趋势= 0.03)。当使用年平均西北偏西时,结果相似。这种关联在年龄、吸烟状况、教育程度或体重指数方面没有明显差异。结论较高的中年NW与晚年AD的发生率降低相关。这些发现强调了建筑环境干预在促进认知健康和支持女性健康老龄化方面的潜力。
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引用次数: 0
Correction to: Home-based extended rehabilitation for older people with frailty (HERO): a randomised controlled trial. 修正:虚弱老年人居家扩展康复(HERO):一项随机对照试验。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag069
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引用次数: 0
Ageing, advanced kidney disease and the limits of prediction: what AGNES tells us about decision-making. 衰老、晚期肾病和预测的局限性:AGNES告诉我们的决策。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag059
John Holland
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引用次数: 0
Editor's view-the pathophysiology of delirium. 编者观点——谵妄的病理生理学。
IF 7.1 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag055
Roy L Soiza
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引用次数: 0
Adverse childhood experiences and sarcopenia: a prospective study embedded in the Canadian Longitudinal Study on Aging. 不良童年经历和肌肉减少症:加拿大老龄化纵向研究中的前瞻性研究。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag050
Menelaos M Dimitriadis,Kitty J Kokkeler,Emiel O Hoogendijk,Radboud M Marijnissen,Ivan Aprahamian,Hans W Jeuring,R C Oude Voshaar
BACKGROUNDAdverse childhood experiences (ACEs), known to increase lifelong health risks, have recently been linked to frailty. This study examined whether ACEs predict the onset and progression of sarcopenia, a core component of the frailty phenotype.METHODSWe analysed 23 476 participants aged 45-85 years in the Canadian Longitudinal Study on Aging with 3-year follow-up (49.5% female; mean age 62.1 ± 9.9). Eight ACEs were assessed using validated retrospective instruments. Associations between ACE count and incident sarcopenia (revised European Working groups on Sarcopenia in Older People criteria) were evaluated using multivariable logistic regression, while changes in continuous sarcopenia components were assessed with lagged linear models adjusted for age, sex and ethnicity. Moderating effects of age, sex, ethnicity, depression (CESD ≥ 10) and socioeconomic position (education, income) were explored.RESULTSOverall, 12.7% of participants reported a high ACE burden (≥3). Among 21 910 participants without baseline sarcopenia, 614 (2.8%) developed sarcopenia. Depression, but not sociodemographic factors, moderated the ACE-sarcopenia association. ACE count predicted incident sarcopenia among depressed participants [OR (odds ratio) = 1.10 (95% (confidence interval) CI: 1.02-1.20), P = .016], but not among nondepressed participants [OR = 0.98 (95% CI: 0.93-1.03), P = .399]. Depression also moderated ACE-related declines in lean muscle mass and handgrip strength. Post hoc analyses showed that ACE-related worsening of chair rise performance and gait speed was mediated by depression.CONCLUSIONSACEs are associated with modest declines in muscle mass and function, with depression emerging as a key pathway linking early adversity to later-life sarcopenia. These findings highlight the need to integrate psychosocial history and mental health into risk stratification and preventive strategies for functional decline.
众所周知,不良的童年经历(ace)会增加终身健康风险,最近发现它与身体虚弱有关。这项研究考察了ace是否能预测肌少症的发病和进展,肌少症是虚弱表型的一个核心组成部分。方法我们对加拿大老龄化纵向研究的23476名年龄在45-85岁之间的参与者进行了3年随访,其中女性49.5%,平均年龄62.1±9.9岁。使用经过验证的回顾性仪器评估8例ace。ACE计数与肌少症发生率之间的关系(修订后的欧洲老年人肌少症工作组标准)采用多变量logistic回归进行评估,而连续肌少症成分的变化采用年龄、性别和种族调整后的滞后线性模型进行评估。探讨年龄、性别、种族、抑郁(CESD≥10)和社会经济地位(教育、收入)的调节作用。总体而言,12.7%的参与者报告了高ACE负担(≥3)。在21 910名没有基线肌少症的参与者中,614名(2.8%)出现了肌少症。抑郁症,而不是社会人口因素,缓和了ace -肌肉减少症的关联。ACE计数预测抑郁症患者肌肉减少症的发生[OR(优势比)= 1.10(95%(置信区间)CI: 1.02-1.20), P =。[016],但在非抑郁参与者中没有[OR = 0.98 (95% CI: 0.93-1.03), P = .399]。抑郁也能减缓ace相关的瘦肌肉量和握力的下降。事后分析显示,ace相关的椅子起身性能和步态速度恶化是由抑郁介导的。结论:sace与肌肉质量和功能的适度下降有关,抑郁症是将早期逆境与晚年肌肉减少症联系起来的关键途径。这些发现强调了将社会心理病史和心理健康纳入功能衰退的风险分层和预防策略的必要性。
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引用次数: 0
'Just a delirium': a qualitative study of care home managers' perspectives on barriers to delirium recognition and management in UK care homes. “只是一种谵妄”:一项关于护理院管理者对英国护理院谵妄识别和管理障碍的观点的定性研究。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag056
Olivia J Russell,Kamar E Ameen-Ali,Angela C Flynn,Sarah Barnes,Jennifer Ferguson,Andrew Divers,Dorothy Newbury-Birch,Judith Eberhardt,John S Young,Mani Santhana Krishnan,Ahmad A Khundakar
Delirium is a common but frequently under-recognised neuropsychiatric syndrome in care homes, especially among residents living with dementia. Delirium is associated with substantial morbidity, mortality and preventable healthcare complications, yet evidence on how it is recognised and managed in residential care remains limited. This qualitative study explored care home managers' perspectives on delirium care within privately owned care homes in a region of England, UK, and data analysed thematically to identify key challenges and opportunities for improvement. Three overarching themes were identified: (1) Recognising and Responding to Delirium described how detection often relied on staff familiarity with residents' usual behaviour, with limited use of formal assessment tools and frequent difficulty distinguishing delirium from dementia, particularly in hypoactive presentations.(2) Systemic Barriers to Quality Care highlighted the impact of chronic underfunding, fragmented communication at hospital discharge, unclear clinical responsibility and limited access to training and clinical support.(3) Collaborative Care and Support Networks captured the role of families and external professionals in delirium management, with variable communication, inconsistent validation of care home concerns and challenges coordinating care across services. In response to these challenges, we recommend co-produced delirium education for care staff, clearer clinical pathways and stronger interprofessional collaboration to ensure that delirium is recognised and treated as a potentially life-threatening medical emergency.
谵妄是一种常见的,但经常被忽视的神经精神综合征在养老院,特别是在居民生活与痴呆症。谵妄与大量发病率、死亡率和可预防的保健并发症有关,但关于如何在住院护理中识别和管理谵妄的证据仍然有限。本定性研究探讨了护理院管理者对英国英格兰地区私人护理院谵妄护理的看法,并对数据进行了主题分析,以确定改进的关键挑战和机会。确定了三个总体主题:(1)识别和响应谵妄描述了如何检测通常依赖于工作人员熟悉居民的日常行为,有限的使用正式评估工具和经常难以区分谵妄和痴呆,特别是在低活性的表现。(2)高质量护理的系统性障碍突出了长期资金不足、出院时沟通分散、临床责任不明确以及获得培训和临床支持的机会有限的影响。(3)协同护理和支持网络抓住了家庭和外部专业人员在谵妄管理中的作用,沟通不一致,养老院关注的验证不一致,以及跨服务协调护理的挑战。为了应对这些挑战,我们建议共同为护理人员提供谵妄教育,更明确的临床途径和更强的跨专业合作,以确保谵妄被视为可能危及生命的医疗紧急情况并予以治疗。
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引用次数: 0
Improving screening in the WHO ICOPE strategy: lessons from risk profiles for major adverse health outcomes. 改进世卫组织ICOPE战略中的筛查:来自主要不良健康结果风险概况的经验教训。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag051
Karine Pérès,Ivane Koumetio Jiatsa,Antoine Gbessemehlan,Jeanne Bardinet,Catherine Helmer,Achille Tchalla,Luc Letenneur
BACKGROUNDThis study aimed to estimate the risk of four adverse outcomes [disability in instrumental activities of daily living (IADL), institutionalisation, dementia and death] associated with Intrinsic Capacity (IC) impairment at baseline, and to test different combinations of IC impairments to better identify high-risk profiles.METHODSThe sample was drawn from two population-based cohorts (Three-City and AMI), in which the six IC domains were assessed: cognition, nutrition, psychology, hearing, vision and mobility. Participants were categorised into three groups: no impairment (IC0), single impairment (IC1) and two impairments or more (IC2+). Cox models were used to estimate the risk of adverse outcomes associated with IC1 and IC2+ compared to IC0. Conditional inference tree analyses, followed by Cox models, were then conducted to identify the most predictive domains and combinations defining the highest-risk profiles.RESULTSAmong the 2964 participants ≥65 included, 24.9% had one IC impairment and 62.3% had two or more. Being in the IC2+ group was associated with a significantly increased risk of all outcomes [adjusted hazard ratios (aHRs) ranging from 2.0 to 3.0], whereas IC1 was not, except for IADL-disability (aHR = 1.46; 95%CI = 1.14-1.87). Mobility, cognitive and visual impairments were constitutive of the highest-risk profiles.CONCLUSIONSThis study supports the relevance of the ICOPE-targeted IC domains in predicting adverse outcomes. Given the high proportion of individuals screened positive, refining the screening threshold by considering the number and combination of impairments may better identify those who should benefit from the subsequent steps for more advanced assessment or intervention as a priority.
本研究旨在评估与基线内在能力(IC)损伤相关的四种不良后果(日常生活工具活动障碍(IADL)、制度化、痴呆和死亡)的风险,并测试IC损伤的不同组合,以更好地识别高风险特征。方法从两个基于人群的队列(Three-City和AMI)中抽取样本,评估6个IC领域:认知、营养、心理、听力、视觉和活动能力。参与者被分为三组:无损伤(IC0),单一损伤(IC1)和两个或更多损伤(IC2+)。使用Cox模型来估计与IC1和IC2+相比IC0相关的不良结局风险。然后进行条件推理树分析,然后进行Cox模型,以确定最具预测性的域和定义最高风险概况的组合。结果在2964名≥65岁的参与者中,24.9%的人有一次IC损伤,62.3%的人有两次或以上IC损伤。IC2+组与所有结局的风险显著增加相关[调整后的危险比(aHR)在2.0到3.0之间],而IC1组与此无关,除了iadl -残疾(aHR = 1.46; 95%CI = 1.14-1.87)。行动能力、认知和视觉障碍是构成最高风险概况的因素。结论本研究支持icope靶向IC域在预测不良结局中的相关性。鉴于筛查呈阳性的个体比例很高,通过考虑损伤的数量和组合来改进筛查阈值可能会更好地确定哪些人应该从后续步骤中受益,以便优先进行更高级的评估或干预。
{"title":"Improving screening in the WHO ICOPE strategy: lessons from risk profiles for major adverse health outcomes.","authors":"Karine Pérès,Ivane Koumetio Jiatsa,Antoine Gbessemehlan,Jeanne Bardinet,Catherine Helmer,Achille Tchalla,Luc Letenneur","doi":"10.1093/ageing/afag051","DOIUrl":"https://doi.org/10.1093/ageing/afag051","url":null,"abstract":"BACKGROUNDThis study aimed to estimate the risk of four adverse outcomes [disability in instrumental activities of daily living (IADL), institutionalisation, dementia and death] associated with Intrinsic Capacity (IC) impairment at baseline, and to test different combinations of IC impairments to better identify high-risk profiles.METHODSThe sample was drawn from two population-based cohorts (Three-City and AMI), in which the six IC domains were assessed: cognition, nutrition, psychology, hearing, vision and mobility. Participants were categorised into three groups: no impairment (IC0), single impairment (IC1) and two impairments or more (IC2+). Cox models were used to estimate the risk of adverse outcomes associated with IC1 and IC2+ compared to IC0. Conditional inference tree analyses, followed by Cox models, were then conducted to identify the most predictive domains and combinations defining the highest-risk profiles.RESULTSAmong the 2964 participants ≥65 included, 24.9% had one IC impairment and 62.3% had two or more. Being in the IC2+ group was associated with a significantly increased risk of all outcomes [adjusted hazard ratios (aHRs) ranging from 2.0 to 3.0], whereas IC1 was not, except for IADL-disability (aHR = 1.46; 95%CI = 1.14-1.87). Mobility, cognitive and visual impairments were constitutive of the highest-risk profiles.CONCLUSIONSThis study supports the relevance of the ICOPE-targeted IC domains in predicting adverse outcomes. Given the high proportion of individuals screened positive, refining the screening threshold by considering the number and combination of impairments may better identify those who should benefit from the subsequent steps for more advanced assessment or intervention as a priority.","PeriodicalId":7682,"journal":{"name":"Age and ageing","volume":"6 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147471684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: The World Health Organization ageism towards older persons scale: preliminary validation of a novel measure of ageist stereotypes, prejudices, and discrimination in four different countries. 修正:世界卫生组织对老年人的年龄歧视量表:在四个不同国家对年龄歧视的陈规定型观念、偏见和歧视的新措施的初步验证。
IF 7.1 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag067
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引用次数: 0
A person-centred ehealth intervention for fall prevention in nursing homes lacking geriatric expertise: cost-effectiveness analysis within a randomised controlled trial. 在缺乏老年医学专业知识的疗养院中,以人为中心的预防跌倒电子卫生干预:随机对照试验中的成本效益分析。
IF 6.7 2区 医学 Q1 GERIATRICS & GERONTOLOGY Pub Date : 2026-03-16 DOI: 10.1093/ageing/afag053
Caroline Gayot,Noëlle Cardinaud,Kévin Zarca,Isabelle Zaleski,Cécile Laubarie-Mouret,Achille Edem Tchalla
BACKGROUNDFalls among older adults in nursing homes are frequent and have serious consequences. They represent a major public health issue with significant costs.OBJECTIVETo investigate the cost-effectiveness of a gerontological telemedicine programme in preventing falls among residents of nursing homes located in areas with limited access to primary care ('medical deserts').DESIGNGERONTACCESS was a prospective, longitudinal, randomised study. In this secondary analysis of that trial, 426 residents aged ≥60 years living in a nursing home located in a medical desert were included in an intervention group (IG) (participants in a preventive gerontological telemedicine programme) or a control group (CG) (those who received usual care). Data were collected between July 2016 and January 2018.MAIN OUTCOME MEASURESThe study outcomes were the proportion of patients who experienced falls during the 1-year study period. The Incremental Cost Effectiveness Ratio was calculated. Data on each fall were collected every month. Direct costs were assessed following guidelines from the French National Authority for Health.RESULTSOver 1 year, 1086 falls were recorded, with no significant difference in total falls between the two groups. However, 980 non-serious falls (those that did not require medical assistance) were observed, involving 107 residents in the IG versus 134 residents in the CG (P = .006). Significantly fewer residents in the IG experienced at least one fall compared to the CG (P = .02). The cost analysis indicated that each fall avoided in the IG saved ~US$4272.CONCLUSIONSThe gerontological telemedicine programme, is a cost-effective way to reduce the number of non-serious falls among residents. It maybe also delayed the timing of the first fall.
背景:老年人在疗养院中摔倒是经常发生的,并且会造成严重的后果。它们是一个重大的公共卫生问题,成本高昂。目的调查老年远程医疗项目在预防老年人跌倒方面的成本效益,这些老年人居住在初级保健服务有限的地区(“医疗沙漠”)。DESIGNGERONTACCESS是一项前瞻性、纵向、随机研究。在对该试验的二次分析中,426名年龄≥60岁、居住在医疗沙漠地区养老院的居民被纳入干预组(IG)(预防性老年远程医疗项目的参与者)或对照组(CG)(接受常规护理的参与者)。数据收集于2016年7月至2018年1月。主要结局指标研究结果为1年研究期间发生跌倒的患者比例。计算增量成本效益比。每个月收集一次秋天的数据。根据法国国家卫生局的指导方针评估了直接费用。结果1年内共记录跌倒1086次,两组总跌倒数无显著差异。然而,观察到980例非严重跌倒(不需要医疗救助的跌倒),涉及IG的107名居民和CG的134名居民(P = 0.006)。与CG组相比,IG组至少经历一次跌倒的居民显著减少(P = 0.02)。成本分析表明,在IG上避免的每一次下降节省了约4272美元。结论老年远程医疗项目是降低居民非严重跌倒数量的一种经济有效的方法。这可能也推迟了第一次下跌的时间。
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引用次数: 0
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Age and ageing
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