Search results for " dmft"

showing 4 items of 4 documents

Can bayesian models play a role in dental caries epidemiology? Evidence from an application to the BELCAP data set

2012

Objectives The aim of this study was to show the potential of Bayesian analysis in statistical modelling of dental caries data. Because of the bounded nature of the dmft (DMFT) index, zero-inflated binomial (ZIB) and beta-binomial (ZIBB) models were considered. The effects of incorporating prior information available about the parameters of models were also shown. Methods The data set used in this study was the Belo Horizonte Caries Prevention (BELCAP) study (Bohning et al. (1999)), consisting of five variables collected among 797 Brazilian school children designed to evaluate four programmes for reducing caries. Only the eight primary molar teeth were considered in the data set. A data aug…

Malebounded dataBest fittingBayesian probabilityDeviance (statistics)informative priorDental CariesSettore MED/42 - Igiene Generale E ApplicataSettore MED/01 - Statistica MedicaOverdispersionPrior probabilityStatisticsHumansMedicineChildGeneral DentistryBayesian analysidmftDMF Indexbusiness.industryBelo Horizonte Caries Preventionzero-inflated betabinomialCaries epidemiologyPublic Health Environmental and Occupational HealthBayes TheoremStatistical modelRegressionzero-inflated binomialFemalebusinessAlgorithmsBrazilBayesian analysis; Belo Horizonte Caries Prevention; bounded data; dmft; informative prior; zero-inflated betabinomial; zero-inflated binomialCommunity Dentistry and Oral Epidemiology
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Caries en una población militar española

2011

Objetivo: Evaluar la prevalencia de caries de la población militar española de la base "General Almirante" Marines, Valencia. Material y método: Estudio descriptivo transversal para el que se seleccionó una muestra de 387 militares para un IC del 95%. En el gabinete dental de la base se realizó la exploración oral siguiendo los criterios de la OMS (1997, 4ª edición). Un solo profesional experimentado con un explorador patrón llevó a cabo la encuesta entre diciembre del 2003 y julio del 2004. Resultados: El índice de dientes con caries, ausentes y obturados (CAO-D) fue de 4,05. El 23% de la muestra estaba libre de caries. Presentaban caries sin tratar el 40% de los explorados, siendo signifi…

Personal militarCaries dentalGeneral EngineeringEpidemiologíaGeneral Earth and Planetary Sciencesíndice DMFTGeneral Environmental ScienceSanidad Militar
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Bayesian Modeling of caries onset and progression: the Belo Horizonte Caries Prevention Study

2011

bayesian modelling zero-inflated binomial dmft count dataSettore MED/01 - Statistica Medica
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Over-dispersion in Oral Health: The state of art of statistical methodology

2011

zero-inflated binomial models caries dmftSettore MED/01 - Statistica Medica
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