نتایج جستجو برای: frailty models

تعداد نتایج: 915874  

Journal: :Age and ageing 2013
Abdelouahid Tajar David M Lee Stephen R Pye Matthew D L O'Connell Rathi Ravindrarajah Evelien Gielen Steven Boonen Dirk Vanderschueren Neil Pendleton Joseph D Finn György Bartfai Felipe F Casanueva Gianni Forti Aleksander Giwercman Thang S Han Ilpo T Huhtaniemi Krzysztof Kula Michael E J Lean Margus Punab Frederick C W Wu Terence W O'Neill

BACKGROUND the link between the vitamin D endocrine axis and frailty remains undefined, with few studies examining the joint effect of vitamin D and parathyroid hormone (PTH) levels. Our objective was to determine the association of frailty with serum 25-hydroxyvitamin D (25(OH)D) and PTH. SETTING cross-sectional analysis within the European Male Ageing Study (EMAS). PARTICIPANTS a total of...

Journal: :Circulation. Cardiovascular quality and outcomes 2011
Mandeep Singh Charanjit S Rihal Ryan J Lennon John A Spertus K Sreekumaran Nair Veronique L Roger

BACKGROUND- Although older patients frequently undergo percutaneous coronary interventions (PCI), frailty, comorbidity, and quality of life are seldom part of risk prediction approaches. We assessed their incremental prognostic value over and above the risk factors in the Mayo Clinic risk score. METHODS AND RESULTS- Patients ≥65 years who underwent PCI were assessed for frailty (Fried criteria)...

2005
Changhong Song Lynn Kuo

We present a Bayesian analysis for recurrent events data using a nonhomogeneous mixed Poisson point process with a dynamic subject-specific frailty function and a dynamic baseline intensity function. The dynamic subject-specific frailty employs a dynamic piecewise constant function with a known pre-specified grid and the baseline intensity uses an unknown grid for the piecewise constant functio...

Journal: :Statistics & Probability Letters 2010

Journal: :Statistics in medicine 1995
A Pickles R Crouchley

This paper reviews some of the main approaches to the analysis of multivariate censored survival data. Such data typically have correlated failure times. The correlation can be a consequence of the observational design, for example with clustered sampling and matching, or it can be a focus of interest as in genetic studies, longitudinal studies of recurrent events and other studies involving mu...

2017
Cecilia Albala Lydia Lera Hugo Sanchez Barbara Angel Carlos Márquez Patricia Arroyo Patricio Fuentes

BACKGROUND Age-associated brain physiologic decline and reduced mobility are key elements of increased age-associated vulnerability. OBJECTIVE To study the frequency of frailty phenotype and its association with mental health and survival in older Chileans. METHODS Follow-up of ALEXANDROS cohorts designed to study disability associated with obesity in community-dwelling people 60 years and ...

Journal: :Canadian journal of surgery. Journal canadien de chirurgie 2017
Gilgamesh Eamer Jennifer A Gibson Chelsia Gillis Amy T Hsu Marian Krawczyk Emily MacDonald Reid Whitlock Rachel G Khadaroo

SUMMARY Preoperative frailty predicts adverse postoperative outcomes. Recommendations for preoperative assessment of elderly patients include performing a frailty assessment. Despite the advantages of incorporating frailty assessment into surgical settings, there is limited research on surgical health care professionals' perception and use of frailty assessment for perioperative care. We survey...

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