نتایج جستجو برای: shared and correlated gaussian frailty models
تعداد نتایج: 16948475 فیلتر نتایج به سال:
Background Understanding and addressing the needs of frail persons is an emerging health priority for Nova Scotia and internationally. Primary healthcare (PHC) providers regularly encounter frail persons in their daily clinical work. However, routine identification and measurement of frailty is not standard practice and, in general, there is a lack of awareness about how to identify and respond...
Introduction: One of the expected consequences of society aging is an increase in the number of frail elderly. Frailty if persistent, It probably has consequences for the individual and social life of the elderly in society. Therefore, the present study aimed to determine the prevalence and frailty-related factors were assessed in the elderly hospitalized. Methods: The present study is a cross-...
Introduction: Thalasemia Major is one of the most common anemia diseases that can be fatal if not promptly diagnosed. The survival analysis of these patients can be an appropriate strategy in determining risk factors for death in these patients. The purpose of this study was to choose the best model to determine the risk factors for death in patients with the thalasemia major using common metho...
Urinary incontinence (UI) is very common in the elderly and has personal and social implications. Many authors have pointed out the necessity to analyze UI in correlation with the overall quality of aging, to better understand this syndrome and define measures for its prevention and treatment. In the present study, we addressed this problem by analyzing the UI correlation with frailty, which ha...
background: the study was developed in order to find a subset of potential factors, which affect birth distance pattern, regarding consideration on correlation of events of birth in a family and correlation within clusters/centers which other studies omit these correlations. methods: referring to documents that were registered for family in the health care centers on socio-economical zone, we c...
Our study examines the contribution of genetic and environmental factors (both shared and unique) to frailty, measured using the Rockwood Frailty Index (FI) in a sample of twins from the St Thomas' UK Adult Twin Registry. The FI was based on 39 items of potential health deficit. Study participants were 3,375 volunteer adult twins (840 monozygotic and 802 dizygotic twin-pairs) 40.0-84.5 years ol...
Frailty, a critical intermediate status of the aging process that is at increased risk for negative health-related events, includes physical, cognitive, and psychosocial domains or phenotypes. Cognitive frailty is a condition recently defined by operationalized criteria describing coexisting physical frailty and mild cognitive impairment (MCI), with two proposed subtypes: potentially reversible...
We define a new class of models for multivariate survival data, in continuous time, based on a number of cumulative hazard functions, along the lines of our family of models for correlated survival data in discrete time (Gross and Huber, 2000, 2002). This family is an alternative to frailty and copula models. We establish some properties of our family and compare it to Clayton’s and Marshall-Ol...
BACKGROUND The gamma-Gompertz model is a fixed frailty model in which baseline mortality increases exponentially with age, frailty has a proportional effect on mortality, and frailty at birth follows a gamma distribution. Mortality selects against the more frail, so the marginal mortality rate decelerates, eventually reaching an asymptote. The gammaGompertz is one of a wider class of frailty mo...
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