Journal of Frailty & Aging最新文献

Current interventions targeting sarcopenia are diverse, incorporating a blend of nutritional, exercise, and pharmacological strategies. Although muscle mass, muscle strength, or functional performance typically serve as the primary endpoints, regulatory agencies have recently emphasized integrating Patient-Reported Outcome Measures (PROMs) as primary or secondary outcomes in interventional studies. This shift acknowledges the importance of PROMs and Patient-Reported Experience Measures (PREMs) in assessing intervention effectiveness and aligns with patient-centered healthcare models. The aims of this systematic review are 1) to identify all sarcopenia-designed interventional studies that used PROMs/PREMs as the primary or secondary outcome, 2) to identify the different PROMs/PREMs used within those studies, and 3) to summarize the effects of sarcopenia-designed interventions on PROMs/PREMs of sarcopenic participants. For that, a systematic search of databases (Medline, EMBASE, Review- Cochrane Central of Register of Controlled Trials, and PsychINFO (Via Ovid)) was conducted in September 2023. The review followed the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) statement, and the protocol was registered on Open Science Framework (https://osf.io/zxgwm/). The systematic review identified 17 RCTs as sarcopenia-designed interventional studies reporting PROMs. PROMs covered the assessment of various aspects, including quality of life, depressive symptoms, loneliness/social isolation, daytime sleepiness, insomnia impact, and sleep quality/disturbance. Only one sarcopenia-specific PROM, namely the SarQoL, was reported. The effect of sarcopenia-designed interventions on PROMs showed considerable heterogeneity, underscoring the need for standardization in sarcopenia research by developing a Core Outcome Set (COS). COS in sarcopenia studies would ensure consistent and comparable findings, ultimately enhancing the reliability and effectiveness of interventions.

Older patients face increasing challenges in preserving mobility during hospitalization. This retrospective cohort study aimed to evaluate the effect of an Occupational Therapy (OT) program on mobility at discharge in older patients admitted to an Acute Geriatric Unit (AGU). All patients aged ≥65 years consecutively admitted to the AGU in an 18-month period were included in the study if scoring <4 or ≥ 8 at the Clinical Frailty Scale. Overall, 807 patients (median age 85 years, 50.2% females) were included: 665 (82%) received OT, while 142 who did not receive OT were used as controls. The Cumulated Ambulation Scale (CAS) was used to assess mobility at discharge. By multivariable logistic regression, OT was independently associated with higher odds of achieving higher CAS score at discharge. These findings emphasize the potential benefits of OT in acute geriatric settings, providing valuable insights for preserving mobility of frail older individuals during hospitalization.

Background: Recent studies have suggested the potential benefits of habitual coffee and green tea consumption on skeletal muscle health. However, it remains unclear whether these benefits are modified by genetic factors, particularly the alpha-actinin-3 (ACTN3) genotype, which is associated with the skeletal muscle phenotype. This study aimed to investigate the interaction between habitual coffee or green tea consumption and the ACTN3 genotype in association with skeletal muscle mass (SMM) and strength.

Methods: This cross-sectional study was conducted on 1,023 Japanese middle-aged and older adults (619 females, aged 45-74 years) living in the community. SMM was gauged using a bioelectrical impedance spectroscopy device, and handgrip strength (HGS) was used to measure muscle strength. The ACTN3 genotype (RR, RX, and XX) was determined from blood samples. Sex-specific linear regression models were used to analyze the interactions between coffee or green tea consumption and the ACTN3 genotype in association with SMM and HGS.

Results: In females, a significant interaction was observed between green tea consumption and the ACTN3 genotype in association with HGS (P interaction < 0.05). Furthermore, stratified analysis revealed a positive association between green tea consumption and HGS, specifically in females with the ACTN3 XX genotype (P trend < 0.05). In males, no significant interactions were observed between coffee or green tea consumption and the ACTN3 genotype in association with SMM or HGS (P interaction > 0.05).

Conclusion: Our findings suggest that the skeletal muscle strength benefits associated with habitual green tea consumption may be contingent upon sex and the ACTN3 genotype.

Objectives: This study aimed to provide evidence regarding the clinical significance of assessing intrinsic capacity (IC).

Design: Longitudinal study.

Setting: Frailty clinic.

Participants: 351 disability-free outpatients aged ≥65 years.

Measurements: Adverse health outcomes were a composite of adverse health outcomes, including mortality, emergency hospitalization, nursing home placement, and new certification or exacerbation for long-term care. We created a composite score based on five IC domains using assessment scales from the WHO ICOPE handbook, with the weights for each domain determined through confirmatory factor analysis.

Results: The composite score of IC was inversely associated with adverse health outcomes within 1-year; the multivariable-adjusted odds ratio (95% confidence interval) was 0.20 (0.09-0.41) for the highest versus lowest tertile, and 0.63 (0.48-0.83) for each 1-point increment in IC score, respectively. Similar associations were observed for specific adverse health outcome, but not for mortality.

Conclusion: IC was inversely associated with subsequent adverse health outcomes in older outpatients, suggesting its prognostic value in routine geriatric practices. Considering the limited sample size, our findings need to be further confirmed.

Aims: Considering the impact of sarcopenia on mortality, and the difficulty to assessment of body composition, the hypothesis of the study is that calf circumference (CC) is closely related to mortality in older patients. The aim of the study was to analyze the potential role of CC to predict mortality in old individuals at 3, 6 and 12 months after discharge from hospital.

Methods: Patients aged >65 years were recruited for this retrospective study from September 2021 to March 2022. Their physical and body composition characteristics (including Body Mass Index-BMI and Mini Nutritional Assessment-MNA) were measured; data on mortality at 3 (T3), 6 (T6) and 12 (T12) months after discharge were recorded. Sarcopenia was diagnosed according to the 2019 European Consensus criteria.

Results: Participants were 192 older adults (92 women), with a mean age of 82.8±7.0 years. Sarcopenic people were 41. The mortality rate was higher in sarcopenic people only at T3 and T6. CC had comparable validity in predicting mortality to that of MNA and ASMMI (Appendicular Skeletal Muscle Mass), and was better than BMI and serum albumin at each time point. Youden's index showed that the best cut-off for CC for predicting mortality was 30.6 cm both at T3 (sensitivity: 74%; specificity: 75%) and T6 (sensitivity: 75%; specificity: 67%). At the Cox regression model for mortality, high values of CC (HR 0.73, CI95% 0.60-0.89/p<0.001) and ADL scores (HR 0.72, CI95% 0.54-0.96/p=0.04) were protective factors at T6 and T12 respectively; at T12 high comorbidity rate was a risk factor (HR 1.28, IC95% 1.02-1.62/p=0.04).

Conclusions: CC has a validity comparable to MNA and ASMMI in predicting mortality at 3, 6 and 12 months after hospital discharge. Moreover, it can be considered an independent predictor of medium-term mortality in the hospitalized older population. CC can be an effective method for the prognostic stratification of these patients, due to its simplicity and immediacy.

Objective: The intricate relationship between social determinants, e.g., social frailty, biomarkers and healthy aging remains largely unexplored, despite the potential for social frailty to impact both intrinsic capacity (IC) and functional ability in the aging process.

Design: Retrospective longitudinal cohort study.

Setting and participants: Participants aged 50+ years from the Social Environment and Biomarkers of Aging Study (SEBAS) in Taiwan, stratified into three age groups: 50-64, 65-74 and 75+.

Measurements: Social frailty was defined based on a score derived from four domains: exclusion from general resources, social resources, social activity, and fulfillment of basic social needs. The scores were categorized as score=0 (no social frailty), 1 (social pre-frailty), and 2+ (social frailty). Multivariable logistic regression and Cox proportional hazard models were employed to examine the dose-responsive relationship between social frailty, low IC, functional and psychological health, and mortality.

Results: Of 1015 study participants, 24.9% and 7.9% were classified as social pre-frailty and social frailty, respectively. No significant differences were observed in most biomarkers between those with social frailty and those without. A dose-responsive relationship was found between social frailty and increased risk of low IC (social pre-frailty: aOR 2.20 [95% CI 1.59-3.04]; social frailty: 5.73 [3.39-9.69]). Similar results were found for functional and psychological health. However, no significant association between social frailty and all-cause mortality was found at the 4-year follow-up (social pre-frailty: aHR 1.52 [95% CI 0.94-2.43]; social frailty: 1.59 [0.81-3.09]).

Conclusions: The significant association between social frailty and low IC, functional limitations, cognitive declines, and depressive symptoms underscores the pressing need for research on intervention strategies to enhance healthy aging in the lifespan course.

Background: Frailty is a geriatric syndrome characterized by increased individual vulnerability with an increase in both dependence and mortality when exposed to external stressors. The use of Frailty Indices in routine clinical practice is limited by several factors, such as the cognitive status of the patient, times of consultation, or lack of prior information from the patient.

Objectives: In this study, we propose the generation of an objective measure of frailty, based on the signal from hand grip strength (HGS).

Design and measurements: This signal was recorded with a modified Deyard dynamometer and processed using machine learning strategies based on supervised learning methods to train classifiers. A database was generated from a cohort of 138 older adults in a transverse pilot study that combined classical geriatric questionnaires with physiological data.

Participants: Participants were patients selected by geriatricians of medical services provided by collaborating entities.

Setting and results: To process the generated information 20 selected significant features of the HGS dataset were filtered, cleaned, and extracted. A technique based on a combination of the Synthetic Minority Oversampling Technique (SMOTE) to generate new samples from the smallest group and ENN (technique based on K-nearest neighbors) to remove noisy samples provided the best results as a well-balanced distribution of data.

Conclusion: A Random Forest Classifier was trained to predict the frailty label with 92.9% of accuracy, achieving sensitivities higher than 90%.

Background: Sarcopenia contributes to increased hospitalizations, cognitive impairment, falls, and all-cause mortality. Current diagnostic methods, like body Magnetic Resonance Imaging and dual-energy X-ray absorptiometry, are costly and impractical. Notably, there is no standardized approach for assessing sarcopenia in dementia clinics. We studied the association of temporal muscle thickness (TMT) with key prognostic factors in people with Alzheimer's disease (AD) and Lewy body dementia (DLB).

Methods: We utilized data from the DemVest, a longitudinal cohort study, and included participants clinically diagnosed with mild AD or DLB. TMT was measured using baseline MRI scans. The main outcome measures were cognition, functional performance, malnutrition, and mortality. Various demographic and clinical factors were considered as potential confounders.

Results: The AD sample was mainly composed by females(76.9%), age 75.5(SD 6.95). The DLB sample was mostly composed by men(63.6%), age 75.8(SD 6.85). At baseline TMT showed significant association with cognitive performance in the DLB group (Est.=0.593, p-value=0.049). The longitudinal analysis revealed significant associations between TMT and functional decline in DLB (Est.=-0.123, p-value 0.007) and increased mortality in the whole sample(HR=0.815, p-value 0.002), the AD group (HR=0.834 p-value=0.031), and the DLB group (HR=0.767 p-value=0.019) respectively. These associations remained significant after adjusting for confounders.

Conclusions: The TMT measurement was associated with mortality in both dementia groups as well as with cognition and function in DLB. TMT emerges as a cost-efficient measure of muscle mass indicating clinical relevance and utility in healthcare settings. Implementing TMT assessment could improve patient care and aid in identifying individuals at risk of adverse outcomes in mild dementia.

Whether anti-inflammatory medications such as aspirin can lower the risk of frailty is an active area of investigation. In previous studies, we reported that regular aspirin use started in midlife was associated with a lower risk of frailty at older age. We therefore sought to further examine the relationship between inflammatory biomarkers, frailty and aspirin use in a pilot nested case-control study of 300 participants aged ≥60 years with available data to calculate a frailty index from the Physicians' Health Study, a completed randomized trial of aspirin that began in 1982. We selected 150 individuals who were frail (frailty index >0.2) and 150 who were not frail (frailty index <0.1). We then matched 29 low users of aspirin (≤60 days/year) 3:1 to 87 regular users of aspirin (>60 days/year). After matching on age, smoking status, history of diabetes and CVD, there was no significant association between aspirin use and level of frailty among those with elevated inflammatory biomarkers (all p>0.05). In this pilot study we did not find evidence of a mediation effect of CRP, TNFR-2 or IL-6 on the association between aspirin and frailty. Additional work is needed to elucidate the potential mechanistic pathways through which medications such as aspirin may be linked with frailty.

Background: People live longer, and frailty has become an important problem in the acute hospital setting. Increasingly the association between frailty and hospital-acquired complications has been reported. However, the overall burden of frailty in this setting has not been described. Therefore, we undertook this study to describe the association between frailty and the risk of hospital-acquired complications among older adults across our five acute hospitals and to estimate the overall burden of frailty attributable to these complications.

Methods: Consecutive admissions among women and men aged ≥ 65 years across our local health district's five acute hospitals, between January 2010 and December 2020, were included to investigate the association between the number of cumulative frailty deficit items and hospital-acquired complications and infections. The numbers of cumulative frailty deficits are presented in four groups (0-1 item, 2 items, 3 items, and 4-13 items). Individual events such as falls, delirium, pressure injuries, thromboembolism, malnutrition, and multiple types of infections are also presented. The overall burden of frailty was estimated using a population-attributable-risk approach.

Results: During the study period there were 4,428 hospital-acquired complications, among 120,567 older adults (52% women). The risk of any hospital-acquired complication (HAC) or any hospital-acquired infection (HAI) increased as the cumulative number of frailty deficits increased. For the 0-1 deficit item group versus the 4-13 items group, the risk of any HAC increased from 5.5/1000 admissions to 80.0/1000 admissions, and for any HAI these rates were 6.2/1000 versus 58.2/1000, respectively (both p-values < 0.001). The 22% (27,144/120,567) of patients with 3 or more frailty deficit items accounted for 63% (2,774/4,428) of the combined hospital-acquired complications and infections. We estimated that the population-attributable risks of any hospital-acquired complication or infection were 0.54 and 0.47, respectively.

Conclusion: We found that an increasing number of cumulative frailty deficit items among older patients are associated with a higher risk of hospital-acquired complications or infections. Importantly, frail older adults account for most of these adverse events.