نتایج جستجو برای: specific hazard approach
تعداد نتایج: 2254161 فیلتر نتایج به سال:
b a c k g r o u n d & aim: in many studies, the survival of patients with chronic kidney disease who are treated with peritoneal dialysis technique has been considered, while this is possible in peritoneal dialysis patients to switch to another treatment. to achieve more accurate estimation of patient survival is necessary to examine all events. the purpose of this study is to estimate...
background: including multivariate survival data can be pointed competing risks data. there are various methods to analyze such data such as semi-parametric methods of cause-specific hazard function, and cumulative incidence function. the aim of this study was to deploy competing risks model to analyze the determinants of patients with liver cirrhosis. materials and methods: during the one-year...
background & aim: we aimed to describe a standard survival analysis, so that we can analyze some factors related to the time of occurrence of different types of reflux (unilateral-left, unilateralright, and bilateral) in children with antenatal hydronephrosis (anh) and to provide an approach taking competing risks into account. methods & materials: we used data of 193 children that was collecte...
Recorded ground motions in near fault region have completely distinct nature from others that recorded in far field of the fault. Near source outcomes cause much of the seismic energy to appear in a single large and long period pulse at the beginning of the velocity record. Assaluyeh complex is located near the reverse Assaluyeh fault that is a segment of Mountain Front Fault. This complex cont...
Background and Objectives: The incidence of rectal cancer is increasing in developing societies, especially in younger age groups. The aim of this study was to evaluate the factors affecting the survival of patients with rectal cancer in the presence of competing risks. Methods: In this retrospective cohort study, the data of 121 patients with rectal cancer during 2001-2017 were studied. De...
This interaction profile discusses and evaluates the evidence for joint toxic action among lead, manganese, zinc, and copper. The interaction profile recommends how to incorporate concerns about possible interactions or additivity into public health assessments of hazardous waste sites where people might be exposed to mixtures of these chemicals. The profile recommends using endpoint-specific h...
Permanent ground displacements/deformations caused by earthquakes can seriously challenge the safety of nuclear power plants. The state-of-the-art hazard analysis methods provide a fault displacement curve, i.e., annual probability given measure will be exceeded. evaluation requires great effort, empirical evidence, and sufficient data for characterization activity capability to cause permanent...
Bengkulu City is an area in Indonesia that has a high seismic intensity. This very vulnerable to undergo earthquakes. Therefore, there necessity study the hazard assessment this area. paper presents vulnerability based on ground response analysis combined with probabilistic assessment. The soil profiles around are investigated using geophysical survey by microtremor and analysis. motion of soft...
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