Kalpana J. Kallianpur , Hardeep K. Obhi , Timothy Donlon , Kamal Masaki , Bradley Willcox , Peter Martin
{"title":"Cross-sectional and longitudinal associations between late-life depressive symptoms and cognitive deficits: 20-year follow-up of the Kuakini Honolulu-Asia aging study","authors":"Kalpana J. Kallianpur , Hardeep K. Obhi , Timothy Donlon , Kamal Masaki , Bradley Willcox , Peter Martin","doi":"10.1016/j.archger.2024.105551","DOIUrl":"10.1016/j.archger.2024.105551","url":null,"abstract":"<div><h3>Objective</h3><p>To examine depressed affect, somatic complaints, and positive affect as longitudinal predictors of fluid, crystallized and global cognitive performance in the Kuakini Honolulu-Asia Aging Study (HAAS), a large prospective cohort study of Japanese-American men.</p></div><div><h3>Methods</h3><p>We assessed 3,088 dementia-free Kuakini-HAAS participants aged 71–93 (77.1 ± 4.2) years at baseline (1991–1993). Depressive symptoms were evaluated by the Center for Epidemiologic Studies Depression (CES-D) Scale. Baseline CES-D depression subscales (depressed and positive affects; somatic complaints) were computed. The Cognitive Abilities Screening Instrument (CASI) measured cognitive performance on a 100-point scale; fluid and crystallized cognitive abilities were derived from CASI factor analysis. Cognition was also evaluated at 4 follow-up examinations over a 20-year period. Multiple regression assessed baseline CES-D subscales as predictors of cognitive change. The baseline covariates analyzed were CASI, age, education, prevalent stroke, <em>APOE</em> ε4 presence, and the longevity-associated <em>FOXO3</em> genotype.</p></div><div><h3>Results</h3><p>Cross-sectionally, baseline CES-D subscales were related to cognitive measures; e.g., higher depressed affect was associated with lower crystallized ability (β = −0.058, p ≤ 0.01), and somatic complaints were linked to poorer fluid ability (β = −0.045, p ≤ 0.05) and to worse global cognitive function as measured by total CASI score (β = −0.038, p ≤ 0.05). However, depression subscales did not significantly or consistently predict fluid ability, crystallized ability, or global cognitive performance over time.</p></div><div><h3>Conclusion</h3><p>Psychological and physical well-being were associated with contemporaneous but not subsequent cognitive functioning. Assessment of depressive symptoms may identify individuals who are likely to benefit from interventions to improve mood and somatic health and thereby maintain or enhance cognition.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141539006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Henryk Skarżyński , Artur Lorens , Piotr Henryk Skarżyński
{"title":"The impact of hearing modeling on quality of life among older people with hearing loss","authors":"Henryk Skarżyński , Artur Lorens , Piotr Henryk Skarżyński","doi":"10.1016/j.archger.2024.105542","DOIUrl":"https://doi.org/10.1016/j.archger.2024.105542","url":null,"abstract":"","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141604924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Isabella Letícia de Pádua Cruz e Souza , Dayane Capra de Oliveira , Thales Batista Souza , Paula Camila Ramírez , Natália Cochar Soares , Mariane Marques Luiz , Maicon Luis Bicigo Delinocente , Andrew Steptoe , Cesar de Oliveira , Tiago da Silva Alexandre
{"title":"Dynapenia and sarcopenia identify walking speed decline in women but not in men","authors":"Isabella Letícia de Pádua Cruz e Souza , Dayane Capra de Oliveira , Thales Batista Souza , Paula Camila Ramírez , Natália Cochar Soares , Mariane Marques Luiz , Maicon Luis Bicigo Delinocente , Andrew Steptoe , Cesar de Oliveira , Tiago da Silva Alexandre","doi":"10.1016/j.archger.2024.105545","DOIUrl":"10.1016/j.archger.2024.105545","url":null,"abstract":"<div><h3>Objective</h3><p>To determine the best indicator of mobility decline between dynapenia, low skeletal muscle mass index (SMMI), and sarcopenia defined by the <em>EWGSOP</em>2 using different cutoff points for grip strength.</p></div><div><h3>Methods</h3><p>A longitudinal study was conducted with a follow-up of eight years, involving 2,680 individuals aged 60 and older who participated in the ELSA study with a walking speed greater than 0.8 m/s at baseline<em>.</em> Dynapenia was defined using different cutoff points for grip strength. SMMI was defined by the 20th percentile of the entire ELSA sample distribution and sarcopenia was defined based on the <em>EWGSOP2</em>, using different cutoff points for grip strength. Mobility was analysed using the walking speed test.</p></div><div><h3>Results</h3><p>Over time, the greatest decline in walking speed occurred in dynapenic women with grip strength < 17 kg (-0.005 m/s per year; 95 % CI: -0.01 to -0.001) and < 20 kg (-0.007 m/s per year; 95 % CI: -0.01 to -0.001). With regards to sarcopenia, the greatest walking speed decline occurred in women with probable sarcopenia when defined by grip strength < 17 kg [(-0.006 m/s per year; 95 % CI: -0.01 to -0.001) or grip strength < 20 kg (-0.007 m/s per year; 95 % CI: -0.01 to -0.001)]. Dynapenia in men as well as low SMMI and sarcopenia in men and women did not enable identifying the risk of mobility decline.</p></div><div><h3>Conclusion</h3><p>Dynapenia and probable sarcopenia defined by grip strength < 17 kg and < 20 kg enabled identifying walking speed decline over time only in women.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141478114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xianwen Shang , Wei Wang , Le Tian , Danli Shi , Yu Huang , Xueli Zhang , Zhuoting Zhu , Xiayin Zhang , Jiahao Liu , Shulin Tang , Yijun Hu , Zongyuan Ge , Honghua Yu , Mingguang He
{"title":"Association of greenspace and natural environment with brain volumes mediated by lifestyle and biomarkers among urban residents","authors":"Xianwen Shang , Wei Wang , Le Tian , Danli Shi , Yu Huang , Xueli Zhang , Zhuoting Zhu , Xiayin Zhang , Jiahao Liu , Shulin Tang , Yijun Hu , Zongyuan Ge , Honghua Yu , Mingguang He","doi":"10.1016/j.archger.2024.105546","DOIUrl":"10.1016/j.archger.2024.105546","url":null,"abstract":"<div><h3>Objectives</h3><p>To examine the associaiton between environmental measures and brain volumes and its potential mediators.</p></div><div><h3>Study design</h3><p>This was a prospective study.</p></div><div><h3>Methods</h3><p>Our analysis included 34,454 participants (53.4% females) aged 40–73 years at baseline (between 2006 and 2010) from the UK Biobank. Brain volumes were measured using magnetic resonance imaging between 2014 and 2019.</p></div><div><h3>Results</h3><p>Greater proximity to greenspace buffered at 1000 m at baseline was associated with larger volumes of total brain measured 8.8 years after baseline assessment (standardized β (95% CI) for each 10% increment in coverage: 0.013(0.005,0.020)), grey matter (0.013(0.006,0.020)), and white matter (0.011(0.004,0.017)) after adjustment for covariates and air pollution. The corresponding numbers for natural environment buffered at 1000 m were 0.010 (0.004,0.017), 0.009 (0.004,0.015), and 0.010 (0.004,0.016), respectively. Similar results were observed for greenspace and natural environment buffered at 300 m. The strongest mediator for the association between greenspace buffered at 1000 m and total brain volume was smoking (percentage (95% CI) of total variance explained: 7.9% (5.5–11.4%)) followed by mean sphered cell volume (3.3% (1.8–5.8%)), vitamin D (2.9% (1.6–5.1%)), and creatinine in blood (2.7% (1.6–4.7%)). Significant mediators combined explained 18.5% (13.2–25.3%) of the association with total brain volume and 32.9% (95% CI: 22.3–45.7%) of the association with grey matter volume. The percentage (95% CI) of the association between natural environment and total brain volume explained by significant mediators combined was 20.6% (14.7–28.1%)).</p></div><div><h3>Conclusions</h3><p>Higher coverage percentage of greenspace and environment may benefit brain health by promoting healthy lifestyle and improving biomarkers including vitamin D and red blood cell indices.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S016749432400222X/pdfft?md5=7d9caacf206c9cd10ffc2fb51bb846bc&pid=1-s2.0-S016749432400222X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141473358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Combined effects of loneliness and diabetes mellitus on disability incidence among older Japanese adults","authors":"Takahiro Shimoda, Kouki Tomida, Chika Nakajima, Ayuka Kawakami, Hiroyuki Shimada","doi":"10.1016/j.archger.2024.105544","DOIUrl":"https://doi.org/10.1016/j.archger.2024.105544","url":null,"abstract":"<div><h3>Background</h3><p>Developed countries worldwide face the challenge of aging populations in which loneliness is problematic, leading to mental and physical health issues. Diabetes mellitus (DM) can cause decreased physical activity, reduced functioning, and depressive symptoms. However, how interactions between loneliness and DM influence health outcomes remains unclear. We aimed to determine the effects of loneliness and DM-related complications on the incidence of disability among older individuals.</p></div><div><h3>Methods</h3><p>We analyzed data from the Japanese National Center for Geriatrics and Gerontology Study of Geriatric Syndromes for community-dwelling adults aged ≥65 years without initial long-term care needs. Loneliness was assessed using the University of California Los Angeles Loneliness Scale, and DM status was determined based on medical history obtained through face-to-face interviews. Disability incidence was identified by monthly tracking of certifications under the Japanese long-term care insurance system. The combined effect of DM and loneliness on care needs was examined using Cox proportional hazard regression models.</p></div><div><h3>Results</h3><p>Among 5,160 participants, 298 (5.8 %) developed incident disabilities within 24 months. Cox models adjusted for potential confounders revealed a significantly increased disability risk among persons with DM and loneliness. Having DM without loneliness and <em>vice versa</em> were not significant risk factors for disability incidence compared with having neither.</p></div><div><h3>Conclusions</h3><p>The combination of loneliness with DM was a risk factor for disability development among community-dwelling older adults. Loneliness and DM might be interrelated and associated with disability development, suggesting that support along with assessments of mental health and illness might help to avoid disability in this population.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of folic acid supplementation on cognitive function and inflammation in elderly patients with mild cognitive impairment: A systematic review and meta-analysis of randomized controlled trials","authors":"Mingchen Wang , Mingqing Fang , Wanli Zang","doi":"10.1016/j.archger.2024.105540","DOIUrl":"10.1016/j.archger.2024.105540","url":null,"abstract":"<div><h3>Object</h3><p>The aim was to assess the effect of folic acid supplementation on cognitive function and inflammatory cytokines in elderly patients with mild cognitive impairment.</p></div><div><h3>Methods</h3><p>From its inception until February 2024, four databases including Web of Science were searched. Two researchers independently screened the literature, assessed the quality, extracted data, and conducted a meta-analysis using RevMan.</p></div><div><h3>Results</h3><p>The systematic review included seven studies (with a total of 1102 participants, mean age 65–80 years), seven of which were appropriate for meta-analysis. Although a small number of studies found relatively large heterogeneity, the majority of studies showed significant benefit from folic acid supplementation, including the FSIQ (823 individuals, standardized mean difference [SMD] = 8.36, 95 % confidence interval [CI] = 0.79 - 1.08), Arithmetic (823 individuals, SMD = 0.17, 95 % CI = -0.03–0.31), Information, SMD = 1.73, 95 % CI 0.41–3.05), Digit Span (823 individuals, SMD = 0.17, 95 % CI = -0.03 - 0.31), Block Design (823 individuals, SMD = 0.26, 95 % CI 0.03–0.49), Picture Completion (823 individuals, SMD = 0.27, 95 % CI = -0.15 - 0.69) and Picture Arrangement (823 individuals, SMD = -0.12, 95 % CI = -0.26 - 0.01). Finally, folic acid supplementation had a significant effect on the reduction of most inflammatory cytokines, blood biomarkers of Alzheimer's disease, and Hcy.</p></div><div><h3>Conclusions</h3><p>Folic acid supplementation seems to have a positive impact on cognitive function in older adults with mild cognitive impairment, but further evidence of its effectiveness in improving inflammatory cytokines is needed from high-quality studies.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141536149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaan Akalp , José Pedro Ferreira , Carlos M. Soares , Maria José Ribeiro , Ana Maria Teixeira
{"title":"The effects of different types of exercises on cognition in older persons with mild cognitive impairment: A systematic review and meta-analysis","authors":"Kaan Akalp , José Pedro Ferreira , Carlos M. Soares , Maria José Ribeiro , Ana Maria Teixeira","doi":"10.1016/j.archger.2024.105541","DOIUrl":"10.1016/j.archger.2024.105541","url":null,"abstract":"<div><h3>Purpose</h3><p>This systematic review with meta-analysis aims to analyze the effects of different types of exercise on cognition, neuroprotective and neuroinflammatory blood markers in older adults with mild cognitive impairment (MCI).</p></div><div><h3>Methods</h3><p>Relevant studies were identified using PubMED, SPORTDiscuss, Web of Science, Scopus, and PsycInfo databases. Methodological quality assessment of the studies was done with modified Downs and Black checklist. Data obtained from the included studies was analyzed using Comprehensive Meta-Analysis 4.0 software and results were reported using the random effects method.</p></div><div><h3>Results</h3><p>A total of twenty-three studies were identified. The findings were summarized as change in cognitive function after the exercise interventions in general and after each type of exercise. On average, the exercise intervention revealed an effect size (ES): 1.165; 0.741 to 1.589 (95% Confidence Interval (CI); p < 0.001); aerobic exercise ES: 1.442; 0.624 to 2.260 (95 %CI); p = 0.001; Multimodal ES: 0,856; 0.366 to 1.346 (95 % CI); p = 0.001 and resistance exercise ES: 1.229; 0.339 to 2.120 (95 % CI); p = 0.007. In addition, we observed significant small ES: -0.475; -0.817 to -0.134 (95 %CI); p = 0.006, I<sup>2</sup>= 0 %; τ<sup>2</sup> = 0 of exercise effects on Tumor Necrosis Factor-α (TNF-α) and non-significant large ES:0.952; -0.238 to 2.142 (95 %CI); p = 0.117 on Brain Derived Neurotrophic Factor (BDNF) in persons with MCI.</p></div><div><h3>Conclusion</h3><p>The present study revealed the existence of a large positive effect of overall exercise intervention on cognitive function and a small effect on TNF-α in old people with MCI. Additionally, this study demonstrates that aerobic and resistance exercises had similar larger positive effects and were better than multimodal exercise on increasing cognition in older persons with MCI.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141565304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haifang Wang , Yan Liang , Huijuan Wu , Hongyu Shi , Ran Hou
{"title":"Effect of multicomponent exercise intervention in community dwelling frail elderly: A systematic review and meta-analysis","authors":"Haifang Wang , Yan Liang , Huijuan Wu , Hongyu Shi , Ran Hou","doi":"10.1016/j.archger.2024.105543","DOIUrl":"https://doi.org/10.1016/j.archger.2024.105543","url":null,"abstract":"<div><h3>Objective</h3><p>To assess the impact of multicomponent exercises on physical functions of frail elderly in communities, evaluating their effect on muscle strength, balance, and endurance, and their influence on quality of life.</p></div><div><h3>Method</h3><p>PubMed, Embase, Cochrane, and Web of Science were searched to collect relevant randomized controlled trials. The search cutoff date was January 24, 2024. Included studies met pre-specified inclusion and exclusion criteria. Data analysis was performed using Revman 5.4 and Stata 15.0 software.</p></div><div><h3>Result</h3><p>This analysis included 19 studies. After 12 weeks, the multicomponent exercises significantly enhanced participants' performance in various physical function assessments. Specifically, in the Timed Up and Go Test, the exercise group showed a significant reduction in time [SMD = -0.86 (95 % CI: -1.40 to -0.33)]. In the Short Physical Performance Battery, interventions shorter than 6 weeks significantly increased scores [SMD = 1.01 (95 % CI: 0.64 to 1.37)], and those longer than 6 weeks showed improvements [SMD = 0.53 (95 % CI: 0.26 to 0.80)]. Muscle strength also improved, with handgrip strength and knee extensor strength enhancements [SMD = 0.93 (95 % CI: 0.27 to 1.59); SMD = 0.72 (95 % CI: 0.24 to 1.20)]. However, there was no statistically significant difference in walking speed between the groups [SMD = 0.04 (95 % CI: -0.33 to 0.40)].</p></div><div><h3>Conclusion</h3><p>Although multicomponent exercises significantly improve muscle strength, balance, and endurance in frail elderly individuals, there is no conclusive evidence of their effect on enhancing quality of life or long-term health outcomes. Further research is needed to explore the specific impacts of different types and intensities of exercises on this population.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chuan-Yen Sun , Wei-Ju Lee , Hsiao-Chin Shen , Wen-Kuang Yu , Wei-Chih Chen , Ho-Min Chen , Fei-Yuan Hsiao , Kuang-Yao Yang , Liang-Kung Chen
{"title":"Activin A as a potential biomarker for preserved ratio impaired spirometry (PRISm) and clinical outcomes in community-dwelling adults","authors":"Chuan-Yen Sun , Wei-Ju Lee , Hsiao-Chin Shen , Wen-Kuang Yu , Wei-Chih Chen , Ho-Min Chen , Fei-Yuan Hsiao , Kuang-Yao Yang , Liang-Kung Chen","doi":"10.1016/j.archger.2024.105539","DOIUrl":"https://doi.org/10.1016/j.archger.2024.105539","url":null,"abstract":"<div><h3>Introduction</h3><p>This study endeavors to decipher the association between Activin A and PRISm, thereby addressing the potential of Activin A as a serum biomarker for early detection and long-term clinical outcome prediction of PRISm and subsequent all-cause mortality.</p></div><div><h3>Methods</h3><p>The study sample comprised middle-aged and older adults from the I-Lan Longitudinal Aging Study. Pulmonary function including forced vital capacity (FVC) and forced expiratory volume in one second (FEV<sub>1</sub>) were measured. Demographic data and laboratory data (including serum Activin A levels) were also collected. Multivariate logistic regression and Cox proportional hazards models were used to identify independent predictors of PRISm and all-cause mortality, respectively.</p></div><div><h3>Results</h3><p>Among 711 eligible participants, 34 % had PRISm. The risk of PRISm elevated with Activin A levels in group quartiles (adjusted odds ratio (aOR), Q2: 1.606 [95 % CI 0.972–2.652], <em>p</em> = 0.064, Q3: 2.666 [1.635–4.348], <em>p</em> < 0.001, Q4: 3.225 [1.965–5.293], <em>p</em> < 0.001). On the other hand, lower hemoglobin (aOR: 1.122, <em>p</em> = 0.041) and higher blood urea nitrogen (BUN) levels (aOR: 1.033, <em>p</em> = 0.048) were associated with increased risk of PRISm. In addition, the PRISm group had a higher all-cause mortality rate (non-PRISm 4.5% vs. PRISm 8.3 %, <em>p</em> = 0.038). Multivariate Cox models also identify a higher level of Activin A as a risk factor of all-cause mortality (aHR: 1.001 [1.000–1.003], <em>p</em> = 0.042).</p></div><div><h3>Conclusions</h3><p>Higher Activin A quartiles were linked to increased risk of PRISm, along with lower hemoglobin and higher BUN levels. Additonally, elevated Activin A was a significant risk factor of all-cause mortality.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0167494324002152/pdfft?md5=db5dcd623bb60748fa3e30313c9d345c&pid=1-s2.0-S0167494324002152-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wei Wu , Jie Guo , Abigail Dove , Michelle M. Dunk , Weili Xu
{"title":"A nomogram for predicting disability-free survival in older adults over 15 years: A population-based cohort study","authors":"Wei Wu , Jie Guo , Abigail Dove , Michelle M. Dunk , Weili Xu","doi":"10.1016/j.archger.2024.105527","DOIUrl":"10.1016/j.archger.2024.105527","url":null,"abstract":"<div><h3>Background</h3><p>This article aimed to develop and validate a simple-to-use nomogram to predict 15-year disability-free survival among older adults.</p></div><div><h3>Methods</h3><p>A cohort of 1878 disability-free participants aged ≥60 was followed for 15 years. Participants were randomly divided into a training cohort for nomogram development (<em>n</em> = 1314 [70 %]) and validation cohort to confirm the model's performance (<em>n</em> = 564 [30 %]). Information on socio-demographic, lifestyle factors, the Life Satisfaction Index A (LSI-A), chronic diseases, and Mini-Mental State Examination (MMSE) score, and biomarkers were collected through interviews, clinical and neuropsychological examinations, and medical records. Disability-free survival was defined as survival in the absence of dementia and physical disability, and the composite endpoint is first occurrence of events of death, dementia and physical disability. We developed a nomogram summing the number of risk points corresponding to weighted covariates to predict disability-free survival. Validation of the nomogram using C statistic, calibration plots, and Kaplan-Meier curves.</p></div><div><h3>Results</h3><p>In the multivariate-adjusted model, factors associated with composite end point were younger age, high MMSE (hazard ratio [HR], 0.93; [95 % CI, 0.87–0.99]), high LSI-A (0.78, [0.64–0.97]), non-smoking (0.74, [0.59–0.94]), engagement in physical leisure activity (0.62, [0.48–0.78]), and absence of chronic diseases (0.78, [0.66–0.91]). Incorporating these 6 factors, the nomogram achieved C-statistics of 0.78 (95 % CI, 0.75–0.81) and 0.77 (95 % CI, 0.74–0.80) in predicting disability-free survival in the training and validation cohorts, respectively, and had good calibration curves.</p></div><div><h3>Conclusion</h3><p>The nomogram was able to predict long-term of disability-free survival and performed well on internal validation, and may be considered for use in effective surveillance, promote, management of clinical and public health ageing.</p></div>","PeriodicalId":8306,"journal":{"name":"Archives of gerontology and geriatrics","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141401007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}