Henderson, Robin and Diggle, Peter J. and Dobson, Angela (2002) Identification and efficacy of longitudinal markers for survival. Biostatistics, 3 (1). pp. 33-50. ISSN 1468-4357Full text not available from this repository.
Methods for the combined analysis of survival time and longitudinal biomarker data have been developed in recent years, with most emphasis on modelling and estimation. This paper focuses on the use of longitudinal marker trajectories as individual-level surrogates for survival. A score test for association which requires only standard methods for implementation is derived for the initial identification of candidate biomarkers. Methods for assessing efficacy of markers are discussed and a measure contrasting conditional and marginal distibutions is proposed. An application using prothrombin index as biomarker for survival of liver cirrhosis patients is included.
|Journal or Publication Title:||Biostatistics|
|Uncontrolled Keywords:||Explained variation ; Joint modelling ; Residual lifetime distribution ; Score test ; Surrogates|
|Subjects:||Q Science > QA Mathematics|
|Departments:||Faculty of Science and Technology > Mathematics and Statistics|
Faculty of Health and Medicine > Medicine
|Deposited On:||19 Nov 2008 14:55|
|Last Modified:||26 Jul 2012 15:27|
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