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...

the aim of this study is to introduce a parametric mixture model to analysis the competing-risks data with two types of failure. in mixture context, i t h type of failure is i th component. the baseline failure time for the first and second types of failure are modeled as proportional hazard models according to weibull and gompertz distributions, respectively. the covariates affect on both the ...

only these figures show the real efficiency of the program (Veleva et al., 2009). One of the main findings in the present study was that even among older women there is a wide variation in the prognosis of the treatment (Niinimäki et al., 2012). As well as in any other age group, it is possible to select good prognosis women for eSET and at the same time maintain a good pregnancy rate as well a...

risk management is one of the nine project management processes, which provides positive results and minimizes the probability and consequences of adverse effects in the project.  in this article a zero-one linear programming model with multiple objectives is used to characterize the potential risks. the proposed model has two main objectives. the first objective is the minimization of the expe...

Background and aims: The most important risk factors threatening health of young people include improper diet, inactivity, smoking, intentional and accidental damages, drugs, AIDS/HIV and psychiatric disorders. Considering increased risky behaviors among teens during 2 last decades, it was decided to evaluate the effects of education and consultation roles in relation to health...

The study was conducted in Assosa district of Benishangul-Gumuz regional state, western Ethiopia, to assess major farm enterprises, agricultural risks and demand for micro-insurance services. Two peasant associations namely, Selga-23 and Kushmengel were selected to represent settler and native farming communities, respectively. Using simple randomized techniques, 86 respondents were selected fo...

The majority of the public in industrial countries believes that pollution and low doses of radiation are threats to good health. As a matter of fact, when these putative risks are compared to those originating from lifestyle, they appear very small. In particular, the risks associated with low doses of irradiation, even when they are assessed with the most pessimistic models, appear extremely ...