Background: Aging-associated upper extremity weakness has been shown to be associated with adverse health outcomes in older adults, but less is known about the association between impaired upper extremity function and cause-specific mortalities.
Methods: Among the 5512 prospective community-based longitudinal Cardiovascular Health Study participants, 1438 had difficulty with one of the three upper extremity functions of lifting, reaching, or gripping. We assembled a propensity score-matched cohort in which 1126 pairs of participants with and without difficulty with upper extremity function, balanced on 62 baseline characteristics including geriatric and functional variables such as physical and cognitive function. Hazard ratios (HRs) and 95% confidence intervals (CIs) for all-cause and cause-specific mortalities associated with upper extremity weakness were estimated in the matched cohort.
Results: Matched participants had a mean age of 73.1 years, 72.5% were women, and 17.0% African American. During 23 years of follow-up, all-cause mortality occurred in 83.7% (942/1126) and 81.2% (914/1126) of participants with and without upper extremity weakness, respectively (HR, 1.11; 95% CI, 1.01-1.22; p = 0.023). Upper extremity weakness was associated with a higher risk of non-cardiovascular mortality, occurring in 595 (52.8%) and 553 (49.1%) of participants, respectively (HR, 1.17; 95% CI, 1.04-1.31; p = 0.010), but had no association with cardiovascular mortality (30.8% vs 32.1% in those with and without upper extremity weakness, respectively; HR, 1.03; 95% CI, 0.89-1.19; p = 0.70).
Conclusion: Among community-dwelling older adults, upper extremity weakness had a weak, albeit independent, significant association with all-cause mortality, which was primarily driven by a higher risk of non-cardiovascular mortality. Future studies need to replicate these findings and understand the underlying reasons for the observed associations.
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http://dx.doi.org/10.1016/j.archger.2023.105021 | DOI Listing |
Sci Adv
January 2025
Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, 999077, China.
Tactile interfaces are essential for enhancing human-machine interactions, yet achieving large-scale, precise distributed force sensing remains challenging due to signal coupling and inefficient data processing. Inspired by the spiral structure of and the processing principles of neuronal systems, this study presents a digital channel-enabled distributed force decoding strategy, resulting in a phygital tactile sensing system named PhyTac. This innovative system effectively prevents marker overlap and accurately identifies multipoint stimuli up to 368 regions from coupled signals.
View Article and Find Full Text PDFPLoS One
January 2025
School of Psychological Sciences, Monash University, Australia.
Non-dominant hand contractions (NDHCs) have been shown to help expert motor skills in high-pressure scenarios that induce performance anxiety. Most studies of NHDCs under pressure have examined benefits in overlearned specialist movements (e.g.
View Article and Find Full Text PDFAnn Med
December 2025
Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Background: Calcinosis cutis of hands can progress and impair hand function in systemic sclerosis (SSc). Understanding the natural disease and comprehensive management is crucial.
Objective: To examine clinical course and identify risk factors associated with progressive calcinosis cutis in early SSc.
JAMA Surg
January 2025
Vanderbilt University Medical Center, Nashville, Tennessee.
Importance: Fracture-related infection (FRI) is a serious complication following fracture fixation surgery. Current treatment of FRIs entails debridement and 6 weeks of intravenous (IV) antibiotics. Lab data and retrospective clinical studies support use of oral antibiotics, which are less expensive and may have fewer complications than IV antibiotics.
View Article and Find Full Text PDFJAMA Dermatol
January 2025
Division of Dermatology, Departments of Medicine and Pediatrics, Washington University School of Medicine in St Louis, St Louis, Missouri.
Importance: Cutaneous pyogenic granulomas (PGs) are commonly encountered, benign, vascular tumors, in which epidemiologic factors have been variably reported, in part, due to sample size limitations and a focus on either adult or pediatric patients.
Objective: To assemble a large dataset of pathologically diagnosed PGs across the continuum of age and investigate patterns of PGs by demographic factors, including age, sex, and anatomical location.
Design, Setting, And Participants: This retrospective case series included case reports of patients with pathologically confirmed PGs of cutaneous origin reported between April 1, 2010, to March 31, 2020.
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