The Annals of Statistics

Hazard models with varying coefficients for multivariate failure time data

Jianwen Cai, Jianqing Fan, Haibo Zhou, and Yong Zhou

Full-text: Open access

Abstract

Statistical estimation and inference for marginal hazard models with varying coefficients for multivariate failure time data are important subjects in survival analysis. A local pseudo-partial likelihood procedure is proposed for estimating the unknown coefficient functions. A weighted average estimator is also proposed in an attempt to improve the efficiency of the estimator. The consistency and asymptotic normality of the proposed estimators are established and standard error formulas for the estimated coefficients are derived and empirically tested. To reduce the computational burden of the maximum local pseudo-partial likelihood estimator, a simple and useful one-step estimator is proposed. Statistical properties of the one-step estimator are established and simulation studies are conducted to compare the performance of the one-step estimator to that of the maximum local pseudo-partial likelihood estimator. The results show that the one-step estimator can save computational cost without compromising performance both asymptotically and empirically and that an optimal weighted average estimator is more efficient than the maximum local pseudo-partial likelihood estimator. A data set from the Busselton Population Health Surveys is analyzed to illustrate our proposed methodology.

Article information

Source
Ann. Statist., Volume 35, Number 1 (2007), 324-354.

Dates
First available in Project Euclid: 6 June 2007

Permanent link to this document
https://projecteuclid.org/euclid.aos/1181100190

Digital Object Identifier
doi:10.1214/009053606000001145

Mathematical Reviews number (MathSciNet)
MR2332278

Zentralblatt MATH identifier
1114.62104

Subjects
Primary: 62G05: Estimation
Secondary: 62N01: Censored data models 62N02: Estimation

Keywords
Local pseudo-partial likelihood marginal hazard model martingale multivariate failure time one-step estimator varying coefficients

Citation

Cai, Jianwen; Fan, Jianqing; Zhou, Haibo; Zhou, Yong. Hazard models with varying coefficients for multivariate failure time data. Ann. Statist. 35 (2007), no. 1, 324--354. doi:10.1214/009053606000001145. https://projecteuclid.org/euclid.aos/1181100190


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