نتایج جستجو برای: proportional hazard

تعداد نتایج: 121051  

2002
Frank Gerhard

A new semiparametric proportional hazard rate model is proposed which extends standard models to include a dynamic speci cation. Two main problems are resolved in the course of this paper. First, the partial likelihood approach to estimate the components of a standard proportional hazard model is not available in a dynamic model involving lags of the log integrated baseline hazard. We use a dis...

2005
JENS PERCH NIELSEN LUNDING SANDQVIST

This paper extends the continuous credibility weighting introduced to hazard estimation in Hardy and Panjer (1998) and Nielsen and Sandqvist (2000) to the more general case, where the common basis is a proportional hazard model.

2017
Frank Gerhard Nikolaus Hautsch NIKOLAUS HAUTSCH

This paper proposes a dynamic proportional hazard (PH) model with non-specified baseline hazard for the modelling of autoregressive duration processes. A categorization of the durations allows us to reformulate the PH model as an ordered response model based on extreme value distributed errors. In order to capture persistent serial dependence in the duration process, we extend the model by an o...

Journal: :Computational Statistics & Data Analysis 2014
Debasis Kundu Manuel Franco Juana-María Vivo

Several univariate proportional reversed hazard models have been proposed in the literature. Recently, Kundu and Gupta (2010, Sankhya, Ser. B, vol. 72, 236 253.) proposed a class of bivariate models with proportional reversed hazard marginals. It is observed that the proposed bivariate proportional reversed hazard models have a singular component. In this paper we introduce the multivariate pro...

2004
Maria de Lourdes Centeno João Andrade e Silva

We discuss the application of the proportional hazard premium calculation principle in the parametric and non parametric framework. In the parametric approach, we propose a method to calculate the premium of a compound risk when the severity distribution is subexponential. In the non parametric approach, the use of the empirical distribution to calculate the premium using the proportional hazar...

رزاقی, عمران محمد, محمودی, محمود, معینی, مریم, پاشایی, طاهره,

  Background and Aim: The objective of this study was to determine factors associated with time to relapse and, thus, retention time, of a cohort of opioid-dependents under methadone maintenance treatment, using survival models, in the Iranian National Center for Addiction Studies (INCAS).   Materials and Methods: A total of 198 opioid-dependent clients participating in the Methadone Maintenanc...

Journal: :journal of biostatistics and epidemiology 0
mahboubeh rasouli department of biostatistics, public health school, iran university of medical sciences, tehran, iran mahmoodreza ghadimi department of statistics, iranian social security organization, tehran, iran masoomeh shohani department of nursing, faculty of allied medical sciences, ilam university of medical sciences, ilam, iran asieh ashouri guilan interventional cardiovascular research center, heshmat hospital, guilan university of medical sciences, rasht, iran samaneh hosseinzadeh department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran kazem mohammad department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran

background & aim: esophageal cancer is one of the main common causes of death. the high prevalence of esophageal cancer in northern iran is an important public health problem. the main aim of this paper was to assess the factors affecting survival of  atients with esophageal cancer in neighbor provinces around the caspian sea using weibull mixture cure model and mixture cure model based on a no...

Journal: :Unisda Journal of Mathematics and Computer Science (UJMC) 2020

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