{"id":113518,"date":"2012-05-12T00:00:00","date_gmt":"2012-05-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/los-modelos-multinivel-en-el-analisis-de-factores-de-riesgo-de-sibilancias-recurrentes-en-lactantes-enfoques-frecuentista-y-bayesiano\/"},"modified":"2012-05-12T00:00:00","modified_gmt":"2012-05-12T00:00:00","slug":"los-modelos-multinivel-en-el-analisis-de-factores-de-riesgo-de-sibilancias-recurrentes-en-lactantes-enfoques-frecuentista-y-bayesiano","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/pediatria\/los-modelos-multinivel-en-el-analisis-de-factores-de-riesgo-de-sibilancias-recurrentes-en-lactantes-enfoques-frecuentista-y-bayesiano\/","title":{"rendered":"Los modelos multinivel en el an\u00e1lisis de factores de riesgo de sibilancias recurrentes en lactantes. enfoques frecuentista y bayesiano."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Virginia Perez Fernandez <\/strong><\/h2>\n<p>En esta tesis se han mostrado los conceptos fundamentales de la metodolog\u00eda multinivel, y se han desarrollado los enfoques frecuentista y bayesiano para el an\u00e1lisis de los modelos multinivel log\u00edsticos de 2 niveles. Se ha realizado un estudio comparativo entre un m\u00e9todo de an\u00e1lisis que no tiene en cuenta la estructura jer\u00e1rquica de los datos y los m\u00e9todos multinivel para el an\u00e1lisis de los factores de riesgo de las sibilancias recurrentes en lactantes. Se han comparado los enfoques frecuentista y bayesiano tanto para el an\u00e1lisis de los modelos multinivel de 2 niveles completamente aleatorios, con intercepto y pendiente aleatoria, como para los modelos de 2 niveles con intercepto aleatorio y variables explicativas del primer nivel y del segundo nivel. El resultado obtenido es que los modelos multinivel mejoran la precisi\u00f3n de las estimaciones de los par\u00e1metros respecto a los modelos que no tienen en cuenta la estructura jer\u00e1rquica de los datos. key words: modelos jer\u00e1rquicos, an\u00e1lisis multinivel, modelos logisticos, m\u00e9todos bayesianos, algoritmo pql.  summary:  this thesis shows the fundamental concepts of the multilevel methodology, and the frequentist and bayesian approaches for multilevel models for binary responses. A comparative study between a method of analysis which does not consider the hierarchical structure of the data and two multilevel methods when applied to study of wheezing and its risk factors in the first year of life. A bayesian and frequentist methods were compared for fitting a two-level random slope model, with random intercept and random slope, and for a random intercept model with a two level explanatory variables. The results show that the multilevel models improve estimations accuracy of parameters regarding models which do not consider the hierarchical structure of the data.  key words: hierarchical models, contextual analysis, logistic models, bayesian methods, pql estimation.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Los modelos multinivel en el an\u00e1lisis de factores de riesgo de sibilancias recurrentes en lactantes. enfoques frecuentista y bayesiano.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Los modelos multinivel en el an\u00e1lisis de factores de riesgo de sibilancias recurrentes en lactantes. enfoques frecuentista y bayesiano. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Virginia Perez Fernandez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 05\/12\/2012<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Diego Salmeron Martinez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Canteras jordana <\/li>\n<li>Luis vicente Garcia-marcos alvarez (vocal)<\/li>\n<li>mart\u00edn Rios alcolea (vocal)<\/li>\n<li>Mar\u00eda manuela Morales su\u00e1rez-varela (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Virginia Perez Fernandez En esta tesis se han mostrado los conceptos fundamentales de la metodolog\u00eda multinivel, y [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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