Hernández-Herrera, Gilma - Search Results - UAB Digital Repository of Documents

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Articles, 2 records found Research literature, 1 records found

Articles	2 records found

6 p, 353.7 KB

Imputing missing data in public health : general concepts and application to dichotomous variables Imputación de valores ausentes en salud pública: conceptos generales y aplicación en variables dicotómicas / Hernández Herrera, Gilma Norela (Universitat Autònoma de Barcelona. Departament de Pediatria, d'Obstetrícia i Ginecologia i de Medicina Preventiva) ; Moriña, David (Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva i Salut Pública) ; Navarro Giné, Albert (Universitat Autònoma de Barcelona. Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva i Salut Pública)
The presence of missing data in collected variables is common in health surveys, but the subsequent imputation thereof at the time of analysis is not. Working with imputed data may have certain benefits regarding the precision of the estimators and the unbiased identification of associations between variables. [...]
2017 - DOI (Digital Object Identifier)

10.1016/j.gaceta.2017.01.001
Gaceta sanitaria, Vol. 31 Núm. 4 (julio 2017) , p. 342-345

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9 p, 1.3 MB

Left-censored recurrent event analysis in epidemiological studies : a proposal for when the number of previous episodes is unknown / Hernández Herrera, Gilma Norela (Universitat Autònoma de Barcelona) ; Moriña, David (Centre de Recerca Matemàtica) ; Navarro Giné, Albert (Research group on Psychosocial risks, Organization of Work And Health (POWAH))
When dealing with recurrent events in observational studies it is common to include subjects who became at risk before follow-up. This phenomenon is known as left censoring, and simply ignoring these prior episodes can lead to biased and inefficient estimates. [...]
2022 - DOI (Digital Object Identifier)

10.1186/s12874-022-01503-1
BMC Medical Research Methodology, Vol. 22 Núm. 20 (january 2022)

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Research literature	1 records found

168 p, 4.6 MB

Propuesta metodológica para el análisis de supervivencia con eventos recurrentes en estudios epidemiológicos cuando el número de eventos previos es desconocido / Hernández Herrera, Gilma Norela ; Navarro Giné, Albert, dir. ; Moriña, David, dir.
Introducció: En molts estudis clínics, epidemiològics i de salut pública, l'esdeveniment d'interès es presenta sovint més d'una vegada i els temps entre ocurrències poden estar correlacionats. [...]
Introducción En muchos estudios clínicos, epidemiológicos y de salud pública, el evento de interés se presenta a menudo más de una vez y los tiempos entre ocurrencias pueden estar correlacionados. [...]
Introduction In many clinical, epidemiological, and public health studies, the event of interest often occurs more than once, and the times between occurrences may be correlated. For this type of data, it is required to have specific statistical methods that allow answering questions that arise in epidemiological investigations related to the probability of occurrence of new events and the impact of the additional covariates. [...]
2021

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