WorldCat Identities

Alemany Leira, Ramón

Overview
Works: 15 works in 54 publications in 3 languages and 109 library holdings
Roles: Author
Publication Timeline
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Most widely held works by Ramón Alemany Leira
Burocracia y descentralización by Juan Francisco Corona Ramón( )

7 editions published in 2001 in Spanish and held by 44 WorldCat member libraries worldwide

Estadística II by Joan Baró Llinàs( Book )

16 editions published between 1996 and 2008 in Catalan and Spanish and held by 15 WorldCat member libraries worldwide

Estadística : cuestiones tipo test by Joan Baró Llinàs( Book )

5 editions published between 1995 and 2001 in Spanish and held by 14 WorldCat member libraries worldwide

El Capital humano, la escolarización y los salarios en España : evidencia empírica para 1990 by Luis Diaz-Serrano( Book )

5 editions published in 1998 in Spanish and held by 10 WorldCat member libraries worldwide

Estadística econòmica : teoria i exercicis by Ramón Alemany Leira( Book )

2 editions published in 2003 in Catalan and held by 9 WorldCat member libraries worldwide

Estadística aplicada by Jordi Aymerich Martínez( Book )

4 editions published in 2014 in Spanish and Catalan and held by 4 WorldCat member libraries worldwide

Modelització de la durada dels estudis universitaris una aplicació a la Universitat de Barcelona by Ramón Alemany Leira( Book )

3 editions published between 1993 and 1994 in Catalan and held by 3 WorldCat member libraries worldwide

Joint Modeling of Longitudinal and Time-to-Event Data with Applications in Health Insurance by Xavier Piulachs Lozada-Benavente( Book )

2 editions published in 2017 in English and held by 2 WorldCat member libraries worldwide

"Health insurance companies accumulate a great wealth of historical data, including policyholder characteristics (age, residence, etc.), death event information, and the frequency and type of medical claims made by each individual, which can be used as an indirect measure of subject's health status. At the same time, the aging processes occurring in most of developed countries generate an interest in assessing the relationship between emergency care demand and survival rate, especially for policyholders over 65. Theoretically, the amount needed by insurance companies to cover the costs of policyholders requiring frequent emergency care should be compensated by a lower survival rate, but this compensation is ambiguous due to heterogeneity between subjects. Indeed, aging and mortality rates are influenced by subject-specific socioeconomic and biological variables, which may vary considerably between individuals, and within a single subject. Consequently, there is both a medical and economic necessity to assess how the individual medical demand of elderly subjects will evolve over time, as their age-related high rate of chronic disease make them require additional medical resources. On one hand, insurance prices are measured in terms of premiums, so individual health status must be considered in order to allow the elderly to sign actuarially fair contracts. On the other hand, an insurance company providing pensions and insurance needs to plan for unexpected costs derived from people having lifespans above mean expectations. Under this interdependency scheme, the joint models for longitudinal and time-to-event data proposed in this thesis provide useful tools to properly address the underlying relationship between the emergency medical demand and the hazard for death event. This thesis makes a contribution to the statistical methodology in the field of joint modeling techniques, which were applied to a large longitudinal dataset, the HI Dataset, provided by a Spanish medical insurance company. From this dataset, we collected those subjects over 65 and living in Barcelona (Spain). For each subject, we have the historical emergency claims information within the study window, as well as the time-to-event information. The longitudinal outcome is of discrete nature, usually restricted to a small range of non-negative integer values which are affected by some degree of overdispersion, i.e. the observed variance exceeds the mean. Additionally, counts with a large number of zeros become quite common due to the incomplete nature of health insurance data. All those subjects entering after the age of 65 are considered as delayed entries, and their time-to-event data are subject to left truncation in addition to the potential (non-informative) right censoring. Then, the implemented joint models must account for the special characteristics of our observed longitudinal response, departing from the common Gaussian responses, together with the specific time-to-event data pattern. There are three main tasks at hand in the joint analysis of the two considered outcomes: 1. To implement a joint model which allows for the handling of longitudinal counts, also considering potential subject-specific overdispersion by means of a model which considers a zero excess (zero inflation). Moreover, survival times can also be subject to both left truncation and right censoring. 2. To assess the functional form to associate each individual's expected longitudinal response with their death risk, investigating the effect of the cumulative longitudinal response on the current death hazard. 3. As a central focus of this thesis, to propose the existence of a time-dependent relationship between the longitudinal process and the time-to-event outcome. This is defined using Bayesian P-splines in order for any specific shape to be conferred. All the analyses included in this thesis have been implemented under the Bayesian framework, in the R and JAGS free-software environments." -- TDX
Apunts i exercicis d'estadística econòmica I : llicenciatura en economia by Ramón Alemany Leira( Book )

2 editions published in 2001 in Catalan and held by 2 WorldCat member libraries worldwide

Estadística econòmica i empresarial I : teoria i exercicis by Ramón Alemany Leira( Book )

2 editions published in 2012 in Catalan and held by 2 WorldCat member libraries worldwide

Burocracia y descentralización by Juan Francisco Corona Ramón( )

1 edition published in 2001 in Spanish and held by 1 WorldCat member library worldwide

El capital humano, la escolarización y los salarios en España evidencia empírica para 1990 by Luis Diaz-Serrano( Book )

1 edition published in 1998 in Undetermined and held by 1 WorldCat member library worldwide

Introducció al model de regressió amb el tractament del paquet T.S.P. by Ramón Alemany Leira( Book )

1 edition published in 1988 in Catalan and held by 1 WorldCat member library worldwide

Flujos de puestos de trabajo y la prima salarial por tamaño en la Economía catalana by Josep Maria Camacho Cabiscol( Book )

2 editions published in 2003 in Spanish and held by 1 WorldCat member library worldwide

Estadística (Parte II) by Joan Baró Llinàs( Book )

1 edition published in 2001 in Spanish and held by 0 WorldCat member libraries worldwide

 
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Audience level: 0.77 (from 0.53 for El capital ... to 1.00 for Estadísti ...)

Alternative Names
Alemany i Leira, Ramón

Alemany Leira, Ramón

Alemany Leira, Ramón José

Alemany, Ramón

Leira, Ramón Alemany

Languages
Spanish (28)

Catalan (23)

English (2)