Estimation of Change Point in Generalized Variance Control Chart

In this study, using maximum likelihood estimation, a considerably effective change point model is proposed for the generalized variance control chart in which the required statistics are calculated with its distributional properties. The procedure, when used with generalized variance control charts, would be helpful for practitioners both controlling the multivariate process dispersion and detecting the time of the change in variance-covariance matrix of a process. The procedure starts after the chart issues a signal. Several structural changes for the variance-covariance matrix are considered and the precision and the accuracy of the proposed method is discussed

Pediatric risk and index of mortality in an intensive care unit

Aim: The purpose of the study is to determine the discriminative ability and calibration of Pediatric Risk of Mortality (PRISM I) I and Pediatric Index of Mortality (PIM) II in predicting the mortality in children admitted to a medical-surgical pediatric intensive care unit (PICU) in Turkey

observational study of the Turkish Oncology Group.

WOS: 00020888030013