Survival Trees: An Alternative Non-Parametric Multivariate Technique for Life History Analysis

Alessandra de Rose and Alessandro Pallara
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Alessandro Pallara: ISTAT – Istituto Nazionale di Statistica

European Journal of Population, 1997, vol. 13, issue 3, No 1, 223-241

Abstract: Abstract In this paper an extension of tree-structured methodology to cover censored survival analysis is discussed. Tree-based methods (also called recursive partitioning) provide a useful alternative to the classical survival data analysis techniques, such as the semi-parametric model of Cox, whenever the main purpose is defining groups of individuals, either with complete or censored life history, having different survival probability, based on the values of selected covariates. The essential feature of recursive partitioning is the construction of a decision rule in the form of a binary tree. Trees generally require fewer assumptions than classical methods and handle non standard and non linear data structures efficiently. Tree-growing methods make the processes of covariate selection and grouping of categories in event history models explicit. An example concerning the analysis of time to marriage of Italian women is presented.

Keywords: Life History; Binary Tree; History Analysis; Survival Tree; Multivariate Technique (search for similar items in EconPapers)
Date: 1997
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DOI: 10.1023/A:1005844818027

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