allogeneic hematopoietic stem cell transplantation (hsct) is the most effective therapy to prevent relapse in acute lymphocytic leukemia (all). this benefit is affected by non-relapse mortality (nrm) due to complications such as graft versus host disease (gvhd). a new approach in analyzing time-dependent covariates in competing risks is landmark analysis. so, the aim of this study is to evaluat...

Competing risks survival data that comprises of more than one type of event has been used in many applications, and one of these is in clinical study (e.g. in breast cancer study). The decision tree method can be extended to competing risks survival data by modifying the split function so as to accommodate two or more risks which might be dependent on each other. Recently, researchers have cons...

Life expectancy has dramatically increased in industrialized nations over the last 200 hundred years. The aging of populations carries over to clinical research and leads to an increasing representation of elderly and multimorbid individuals in study populations. Clinical research in these populations is complicated by the fact that individuals are likely to experience several potential disease...

Due to low switching costs and stiff competition, customer relationship management has become a central component in the marketing strategy of telecommunication service providers. Since acquiring new are five times higher than maintaining an existing customer, providers eager reduce churn rate. A solid understanding behavior can help address this problem. Reducing rate translate into significan...