Survival models and health sequences

Survival models and health sequences.

Survival studies often generate not only a survival time for each patient but also a sequence of health measurements at annual or semi-annual check-ups while the patient remains alive. Such a sequence of random length accompanied by a survival time is called a survival process. Robust health is ordinarily associated with longer survival, so the two parts of a survival process cannot be assumed ...

Therapeutic Abortion: Ensuring the Health and Survival of Mothers

Siqt janin (abortion) is defined as the intentional or unintentional action that is performed on a pregnant woman, which compromises the life or the foetal development of an unborn baby, such that it dies or cannot continue living out of the uterus. Due to scientific and technological advancement in medicine, the controversy of therapeutic abortion is very much at the forefront of mode...

Health Directors and Experts, and Proper Need Assessment Models

Introduction. Need Assessment is an inseparable element of educational planning and optimization of human resources. Identifying educational needs can increase the efficacy of educational plans. The goal of this research was to investigate the characteristics of an appropriate need assessment model and also determine the most applicable need assessment models according to the viewpoints of heal...

Survival and Health

Comparison of Artificial Neural Networks and Cox Regression Models in Prediction of Kidney Transplant Survival

Cox regression model serves as a statistical method for analyzing the survival data, which requires some options such as hazard proportionality. In recent decades, artificial neural network model has been increasingly applied to predict survival data. This research was conducted to compare Cox regression and artificial neural network models in prediction of kidney transplant survival. The prese...