Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.

The survival analysis is a set of techniques for analyzing the elapsed time until the occurrence of an event of interest, also called lifetime, which can be completely or partially observed. In practice, a common problem is to compare the survival experiences of at least two groups...

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Main Authors:	Brun González, L. P., Salazar Uribe, J. C.
Format:	Online
Language:	spa
Published:	Universidad Pedagógica y Tecnológica de Colombia 2016
Subjects:	Análisis de supervivencia censura informativa tiempo de falla pruebas Log-Rank potencia de la prueba. (Failure Time Informative Log-Rank Tests Censoring Survival Analysis Power of a Test.)
Online Access:	https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4230

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author	Brun González, L. P. Salazar Uribe, J. C.
author_facet	Brun González, L. P. Salazar Uribe, J. C.
author_sort	Brun González, L. P.
collection	OJS
description	The survival analysis is a set of techniques for analyzing the elapsed time until the occurrence of an event of interest, also called lifetime, which can be completely or partially observed. In practice, a common problem is to compare the survival experiences of at least two groups under study. The analysis strategy most common is to use Log-Rank tests, but these do not distinguish whether the mechanism of censoring it is informative or not. In this work it was evaluated, under different simulation scenarios, the estimated power of some Log-Rank tests when informative censoring is presented. We found evidence favoring the Wilcoxon test.
format	Online
id	oai:oai.revistas.uptc.edu.co:article-4230
institution	Revista Ciencia en Desarrollo
language	spa
publishDate	2016
publisher	Universidad Pedagógica y Tecnológica de Colombia
record_format	ojs
spelling	oai:oai.revistas.uptc.edu.co:article-42302022-06-15T17:16:48Z Effect of Informative Censoring on the Power of Some Log-Rank Type Tests. Efecto de la censura informativa sobre la potencia de algunas pruebas tipo Log-Rank. Brun González, L. P. Salazar Uribe, J. C. Análisis de supervivencia censura informativa tiempo de falla pruebas Log-Rank potencia de la prueba. (Failure Time Informative Log-Rank Tests Censoring Survival Analysis Power of a Test.) The survival analysis is a set of techniques for analyzing the elapsed time until the occurrence of an event of interest, also called lifetime, which can be completely or partially observed. In practice, a common problem is to compare the survival experiences of at least two groups under study. The analysis strategy most common is to use Log-Rank tests, but these do not distinguish whether the mechanism of censoring it is informative or not. In this work it was evaluated, under different simulation scenarios, the estimated power of some Log-Rank tests when informative censoring is presented. We found evidence favoring the Wilcoxon test. El análisis de supervivencia consiste en un conjunto de técnicas para analizar el tiempo de seguimiento hasta la ocurrencia de un evento de interés, también denominado tiempo de vida, el cual se observa completa o parcialmente. En la práctica, un problema frecuente consiste en comparar las experiencias de supervivencia de al menos dos grupos bajo estudio. La estrategia de análisis más común consiste en usar pruebas Log-Rank, pero estas no distinguen si el mecanismo de censura es informativo o no. En este trabajo se evaluó, bajo diferentes escenarios de simulación, la potencia estimada de algunas pruebas Log-Rank cuando los datos presentan censura informativa. Se encontró evidencia de un mejor desempeño de la prueba de Wilcoxon.   Universidad Pedagógica y Tecnológica de Colombia 2016-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4230 10.19053/01217488.4230 Ciencia En Desarrollo; Vol. 7 No. 1 (2016): Enero a Junio; 45-53 Ciencia en Desarrollo; Vol. 7 Núm. 1 (2016): Enero a Junio; 45-53 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4230/3661 Derechos de autor 2016 CIENCIA EN DESARROLLO
spellingShingle	Análisis de supervivencia censura informativa tiempo de falla pruebas Log-Rank potencia de la prueba. (Failure Time Informative Log-Rank Tests Censoring Survival Analysis Power of a Test.) Brun González, L. P. Salazar Uribe, J. C. Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title	Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title_alt	Efecto de la censura informativa sobre la potencia de algunas pruebas tipo Log-Rank.
title_full	Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title_fullStr	Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title_full_unstemmed	Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title_short	Effect of Informative Censoring on the Power of Some Log-Rank Type Tests.
title_sort	effect of informative censoring on the power of some log rank type tests
topic	Análisis de supervivencia censura informativa tiempo de falla pruebas Log-Rank potencia de la prueba. (Failure Time Informative Log-Rank Tests Censoring Survival Analysis Power of a Test.)
topic_facet	Análisis de supervivencia censura informativa tiempo de falla pruebas Log-Rank potencia de la prueba. (Failure Time Informative Log-Rank Tests Censoring Survival Analysis Power of a Test.)
url	https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4230
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