نتایج جستجو برای: informative dropout
تعداد نتایج: 31950 فیلتر نتایج به سال:
Longitudinal studies often gather joint information on time to some event (survival analysis, time to dropout) and serial outcome measures (repeated measures, growth curves). Depending on the purpose of the study, one may wish to estimate and compare serial trends over time while accounting for possibly non-ignorable dropout or one may wish to investigate any associations that may exist between...
This paper considers the analysis of a repeat event outcome in clinical trials of chronic diseases in the context of dependent censoring (e.g. mortality). It has particular application in the context of recurrent heart failure hospitalisations in trials of heart failure. Semi-parametric joint frailty models (JFMs) simultaneously analyse recurrent heart failure hospitalisations and time to cardi...
People perceive, think, and behave differently at various spatial and temporal scales. Spatiotemporal modelling of tourist movements considers how people move about or why they exhibit certain movement behaviours. Research into spatio-temporal movements of tourists can be studied from a number of different aspects. Psychologists, for example, are concerned with understanding the cognitive aspec...
Introduction: University's students are faced with a lot of problems such as dropout. There are many factors to happen and by destroyed. Aim of this study was to determine the student's opinions about most effective factors for academic dropout in Shahid Sadoughi University. Methods: This is a descriptive – analytic study. In total 40 students who had dropped out and 60 students who had not dro...
BACKGROUND Joint modeling of longitudinal and survival data has been increasingly considered in clinical trials, notably in cancer and AIDS. In critically ill patients admitted to an intensive care unit (ICU), such models also appear to be of interest in the investigation of the effect of treatment on severity scores due to the likely association between the longitudinal score and the dropout p...
Objectives: Mental illnesses are common among outpatient clinics, but only some of these patients receive adequate treatments and attend. The purpose of this study is to evaluate the dropout rate and identify the predictors of dropouts in outpatient clinics in Roozbeh Psychiatric Hospital. Methods: A questionnaire designed by expert psychiatrists was filled. The questionnaire consists of inf...
IONS AND METHODOLOGY Computer architecture’s heavy emphasis on simulation effectively discourages the research community from exploring other useful and possibly more informative modeling techniques. The few published papers using and proposing analytic models have not stimulated significant follow-up efforts. Stories abound of such papers receiving knee-jerk negative rejections from program co...
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