Identification and efficacy of longitudinal markers for survival.

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 1468-4357

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Biostatistics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2600/2613
Subjects:
?? explained variationjoint modellingresidual lifetime distributionscore testsurrogatesstatistics and probabilitystatistics, probability and uncertaintygeneral medicinemedicine(all)qa mathematics ??
ID Code:
19272
Deposited By:
Deposited On:
19 Nov 2008 14:55
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 08:16