نتایج جستجو برای: death hazard function
تعداد نتایج: 1503037 فیلتر نتایج به سال:
Abstract Background: Semi-Markov multi-state models are very important to describe regression and progression in chronic diseases and cancers. Purpose of this research was to determine the prognostic factors for survival after acute leukemia using multi-state models. Materials and Methods: In this descriptive longitudinal research, a total of 507 acute leukemia patients (206 acute lymphocyt...
A Framework that Incorporates Repeated Measurements into the Hazard (Under the direction of Michael J. Symons). By allowing covariates to remain constant between consecutive measurements over time. the hazard is able to incorporate repeated measurements in addition to intervening event and baseline information. Within this context. proportionality receives a broader definition. Although an indi...
OBJECTIVE This study aims to study the prognostic impact of left ventricular function on mortality and examine the effect of age on the prognostic value of left ventricular function. METHODS We examined the myocardial ischaemia national audit project registry (2006-2010) data with a mean follow-up of 2.1 years. Left ventricular function was categorised into good (ejection fraction ⩾50%), mode...
BACKGROUND There is a paucity of long-term data comparing biological versus mechanical aortic valve prostheses in older individuals. METHODS AND RESULTS We performed follow-up of patients aged 65 to 80 years undergoing aortic valve replacement with a biological (n=24 410) or mechanical (n=14 789) prosthesis from 1991 to 1999 at 605 centers within the Society of Thoracic Surgeons Adult Cardiac...
Seven hundred nine (18%) patients experienced a major cardiovascular event (composite of cardiovascular death, nonfatal myocardial infarction, or nonfatal stroke) and 706 (18%) died during a median of 5 years of follow-up. In Cox regression models, adjusting for all established risk predictors, the hazard ratio for cardiovascular events for NT-proBNPwas 1.95 per 1 SD increase (95% CI 1.72, 2.20...
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