Browsing by Subject "Survival analysis (Biometry)"
Now showing items 1-20 of 60
-
A multi-state model for the prognosis of non-mild acute pancreatitis
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-06)
Master thesis
Open AccessMotivated by data from an observational, prospective study of 286 patients with non-mild acute pancreatitis (AP) who entered the Intensive Care Unit (ICU) of the Donostia University Hospital between 2001 and mid-2017, we ... -
A survey on pre-processing techniques: relevant issues in the context of environmental data mining
(IOS Press, 2016-12)
Article
Open AccessOne of the important issues related with all types of data analysis, either statistical data analysis, machine learning, data mining, data science or whatever form of data-driven modeling, is data quality. The more complex ... -
Analytical and graphical goodness of fit methods for parametric survival models with right-censored data
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2015-05)
Master thesis
Open AccessValidation of a parametric survival model is a very important but not straightforward task in the presence of censored data. In literature not much references are available about this topic, so in this project we collect ... -
Análisis de supervivencia en cohorte mundial de pacientes sometidos a segundo trasplante hepático con infección conjunta del VIH y hepatitis
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-06)
Master thesis
Open AccessA diario en los hospitales de todo el mundo se trasplantan órganos sin éxito. La información relativa a trasplante hepático en pacientes infectados por VIH es escasa. La publicación del Hospital Clinic de Barcelona de 2012 ... -
Assessing influence in survival data with a cure fraction and covariates
(Institut d'Estadística de Catalunya, 2008)
Article
Open AccessDiagnostic methods have been an important tool in regression analysis to detect anomalies, such as departures from error assumptions and the presence of outliers and influential observations with the fitted models. Assuming ... -
Assessing the effect of weight fluctuation on competing death events using Joint Models. Application to the PREDIMED study
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2022-02)
Master thesis
Restricted access - confidentiality agreementWe propose a joint model able to explain the association between body-weight fluctuation and overall mortality. Weight over time is defined in terms of a linear mixed model, and time-to-death is modelled through a proportional ... -
Associació entre la ingesta de flavonoids i lignans amb la mortalitat: Comparació entre el Model de Cox i el Model de Riscos Competitius
(Universitat Politècnica de Catalunya, 2012-11)
Master thesis
Restricted access - confidentiality agreement -
Asymptotic distribution of Crámer-von Mises and Anderson-Darling tests for right-censored data
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2022-06)
Master thesis
Open AccessThe aim of this work is to study the asymptotic distribution of the Cramér-von Mises (C-vM) statistic for tests of goodness of-fit, when the data are subject to random right censorship, as well as the implementation of the ... -
Characterizing the evolution of the Yangtze River Delta multi-port system using compositional data techniques
(2021-09-12)
Article
Open AccessThe Yangtze River Delta multi-port system (YMPS) receives increasing attention due to its relevance in world trade and excellent competitiveness in the container traffic market. To insight into the development pattern of ... -
Competing risks methods
(2007-12-10)
Research report
Open AccessCompeting risks data usually arises in studies in which the failure of an individual may be classified into one of k (k > 1) mutually exclusive causes of failure. When competing risks are present, classical survival analysis ... -
Composite endpoints for stent cardiovascular clinical trials
(Universitat Politècnica de Catalunya, 2011)
Master thesis
Open AccessQuan es comparen dos tractaments A i B en base a un anàlisi de supervivència sovint s'utilitza com punt final (endpoint) d'interès l'esdeveniment E* format per la unió de dos o més esdeveniments. Per exemple, en estudis ... -
Compounded life expectancy with randomly censored data
(Universitat Politècnica de Catalunya, 2014-06)
Master thesis
Restricted access - author's decisionIn this thesis we propose an estimator for life expectancy based on the idea of partitioning the condi- tional mean of a random variable into different components. Every component of the Compounded Life Expectancy (CLE) ... -
Contributions on joint modeling of sequential times to event with longitudinal information
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2014-10)
Master thesis
Open AccessIn longitudinal studies it is often of interest to measure the association between a longitudinal marker repeatedly measured in time and the risk for an event. By postulating a model for the joint distribution, we acknowledge ... -
Descripción de la supervivencia con indicadores numéricos y gráficos: conceptos básicos y errores que evitar
(2022-02-15)
Article
Open Access -
Effect of changing the copular when choosing the primary endpoint in a Randomized Clinical Trial
(2013)
Conference report
Open Access -
Empirical comparison between the Nelson-Aalen Estimator and the Naive Local Constant Estimator
(Institut d'Estadística de Catalunya, 2008)
Article
Open AccessThe Nelson-Aalen estimator is widely used in biostatistics as a non-parametric estimator of the cumulative hazard function based on a right censored sample. A number of alternative estimators can be mentioned, namely, the ... -
Escalas pronóstico en pacientes con acceso al programa hospitalario de medicaciones en situaciones especiales: construcción del modelo de riesgo ICO-MEscore
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2021-10)
Master thesis
Restricted access - author's decision
Covenantee: Institut Català d'OncologiaEl uso de nuevos medicamentos en el campo de la oncología ha proporcionado una mejora en la supervivencia de los pacientes con cáncer. Por lo tanto, el uso de medicación en condiciones diferentes a las autorizadas, llamada ... -
Esdeveniments recurrents, predicció i cost-benefici de la publicitat a televisió
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2017-06)
Master thesis
Restricted access - author's decisionLa idea d'aquest projecte va sorgir arrel de que una empresa de publicitat i màrketing va veure que el mètode que havia aplicat per atribuir anuncis a descàrregues podia tenir algunes mancances. La finalitat d'aquest ... -
Estudio de factores asociados a la supervivencia de pacientes con cáncer colorectal en Estados Unidos
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2020-06)
Bachelor thesis
Open Access[cast] El c ancer es una enfermedad que lleva muchos a~nos siendo una de las principales causas de mortalidad del mundo. Se han obtenido una gran cantidad de datos del c ancer colorrectal en Estados Unidos para un per odo ... -
Estudio de los récords olímpicos con técnicas de "análisis de supervivencia"
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2022-01)
Bachelor thesis
Open AccessEl análisis de supervivencia se suele utilizar en diversos estudios clínicos para estudiar el tiempo de un paciente hasta que presente un cierto evento (muerte, contraer una enfermedad. . . ). En este trabajo se aplicarán ...
