Showing 1 - 10 of 21
In this article, we consider the setting where the event of interest can occur repeatedly for the same subject (i.e., a recurrent event; e.g., hospitalization) and may be stopped permanently by a terminating event (e.g., death). Among the different ways to model recurrent/terminal event data,...
Persistent link: https://www.econbiz.de/10009476550
Dependent censoring occurs in longitudinal studies of recurrent events when the censoring time depends on the potentially unobserved recurrent event times. To perform regression analysis in this setting, we propose a semiparametric joint model that formulates the marginal distributions of the...
Persistent link: https://www.econbiz.de/10009476569
It is of interest that researchers study competing risks in which subjects may fail from any one of K causes. Comparing any two competing risks with covariate effects is very important in medical studies. This thesis develops omnibus tests for comparing cause-specific hazard rates and cumulative...
Persistent link: https://www.econbiz.de/10009463432
The cause for the observed trends in prostate cancer mortality is unclear. Several authors have indicated that incorrectly classified causes of death have played a role in recent mortality trends. This dissertation is devoted to analyzing competing risks survival data with a misclassified cause...
Persistent link: https://www.econbiz.de/10009482944
Tradicionalmente, los concursos de acreedores en España han sido procedimientos largos y costosos, que casi siempre terminaban en la liquidación de la empresa concursada (95 %). Estas disfuncionalidades quedaron en evidencia con el fuerte aumento de los concursos de acreedores durante la...
Persistent link: https://www.econbiz.de/10012530510
In many clinical studies, researchers are mainly interested in studying the effects of some prognostic factors on the hazard of failure from a specific cause while individuals may failure from multiple causes. This leads to a competing risks problem. Often, due to various reasons such as finite...
Persistent link: https://www.econbiz.de/10009431243
This study examines technical efficiency of Critical Access Hospitals (CAH) using a two-stage approach and bootstrap … second stage, efficiency scores are regressed on environmental variables using a truncated regression with bootstrap …. Alternatively, a double bootstrap procedure is used, where bias-corrected DEA efficiency scores, obtained by means of bootstrap in …
Persistent link: https://www.econbiz.de/10009446354
This paper examines the effects of farm characteristics and government policies in enhancing productivity growth for a sample of Greek farms, using a two-stage procedure. In the 1st-stage, non-parametric estimates of Malmquist index and its decompositions are computed, while a bootstrapping...
Persistent link: https://www.econbiz.de/10009446381
relative and absolute error variance across a variety of bootstrap procedures for each combination of conditions. It was found … suggested with respect to nested designs. This study provides support for the use of bootstrap procedures for estimating …
Persistent link: https://www.econbiz.de/10009466057
principles related to the expectation maximization (EM) algorithm and bootstrap methods. We formulate the criteria for three …
Persistent link: https://www.econbiz.de/10009466074