A smooth test in proportional hazard survival models using local partial likelihood fitting
Kauermann G, Berger U (2003)
LIFETIME DATA ANALYSIS 9(4): 373-393.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Abstract / Bemerkung
Proportional hazard models for survival data, even though popular and numerically handy, suffer from the restrictive assumption that covariate effects are constant over survival time. A number of tests have been proposed to check this assumption. This paper contributes to this area by employing local estimates allowing to fit hazard models in which covariate effects are smoothly varying with time. A formal test is derived to check for proportional hazards against smooth hazards as alternative. The test proves to possess omnibus power in that it is powerful against arbitrary but smooth alternatives. Comparative simulations and two data examples accompany the presentation. Extensions are provided to multiple covariate settings, where the focus of interest is to decide which of the covariate effects vary with time.
Stichworte
smooth tests;
local likelihood;
cox model;
proportional hazard model
Erscheinungsjahr
2003
Zeitschriftentitel
LIFETIME DATA ANALYSIS
Band
9
Ausgabe
4
Seite(n)
373-393
ISSN
1380-7870
Page URI
https://pub.uni-bielefeld.de/record/1608971
Zitieren
Kauermann G, Berger U. A smooth test in proportional hazard survival models using local partial likelihood fitting. LIFETIME DATA ANALYSIS. 2003;9(4):373-393.
Kauermann, G., & Berger, U. (2003). A smooth test in proportional hazard survival models using local partial likelihood fitting. LIFETIME DATA ANALYSIS, 9(4), 373-393. https://doi.org/10.1023/B:LIDA.0000012423.68151.da
Kauermann, Göran, and Berger, Ursula. 2003. “A smooth test in proportional hazard survival models using local partial likelihood fitting”. LIFETIME DATA ANALYSIS 9 (4): 373-393.
Kauermann, G., and Berger, U. (2003). A smooth test in proportional hazard survival models using local partial likelihood fitting. LIFETIME DATA ANALYSIS 9, 373-393.
Kauermann, G., & Berger, U., 2003. A smooth test in proportional hazard survival models using local partial likelihood fitting. LIFETIME DATA ANALYSIS, 9(4), p 373-393.
G. Kauermann and U. Berger, “A smooth test in proportional hazard survival models using local partial likelihood fitting”, LIFETIME DATA ANALYSIS, vol. 9, 2003, pp. 373-393.
Kauermann, G., Berger, U.: A smooth test in proportional hazard survival models using local partial likelihood fitting. LIFETIME DATA ANALYSIS. 9, 373-393 (2003).
Kauermann, Göran, and Berger, Ursula. “A smooth test in proportional hazard survival models using local partial likelihood fitting”. LIFETIME DATA ANALYSIS 9.4 (2003): 373-393.
Daten bereitgestellt von European Bioinformatics Institute (EBI)
Zitationen in Europe PMC
Daten bereitgestellt von Europe PubMed Central.
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