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Kiirendatud suremuse mudel (AFT)×Log-rank testi ellujäämiskõverate võrdlemiseks×Weibulli parameetriline elulemusregressioon×
ValdkondElukestusanalüüsElukestusanalüüsElukestusanalüüs
PerekondSurvival analysisSurvival analysisSurvival analysis
Tekkeaasta199219661951
LoojaWei, L. J. (seminal review 1992); origins in parametric survival literatureMantel, N.Waloddi Weibull
TüüpParametric survival regression modelNon-parametric hypothesis testFully parametric survival regression model
AlgallikasWei, L. J. (1992). The Accelerated Failure Time Model: A Useful Alternative to the Cox Regression Model in Survival Analysis. Statistics in Medicine, 11(14–15), 1871–1879. DOI ↗Mantel, N. (1966). Evaluation of Survival Data and Two New Rank Order Statistics Arising in Its Consideration. Cancer Chemotherapy Reports, 50(3), 163–170. link ↗Kalbfleisch, J. D. & Prentice, R. L. (2002). The Statistical Analysis of Failure Time Data (2nd ed.). Wiley. DOI ↗
RööpnimetusedAFT model, parametric survival regression, Hızlandırılmış Başarısızlık Zamanı Modeli (AFT)Mantel log-rank test, Mantel-Cox test, log-rank sağkalım testi, Log-Rank Testiweibull aft model, weibull survival model, parametric survival regression, Weibull Regresyonu — Parametrik Hayatta Kalma
Seotud324
KokkuvõteThe Accelerated Failure Time model is a parametric regression approach to survival analysis — formally reviewed and advocated by L. J. Wei in 1992 — in which covariates act as multiplicative factors that directly stretch or compress the time-to-event scale. Unlike the Cox proportional-hazards model, which models how covariates shift the hazard rate, AFT models express the covariate effect as an acceleration or deceleration of the time axis itself.The log-rank test, developed by Nathan Mantel in 1966, is a non-parametric hypothesis test that compares the overall survival experience of two or more groups throughout the entire follow-up period. It is the standard companion to Kaplan-Meier curves and determines whether observed differences between curves are statistically meaningful.Weibull regression is a fully parametric survival model, formalised by Kalbfleisch and Prentice, that assumes survival times follow a Weibull distribution. A shape parameter controls whether the hazard increases, decreases, or remains constant over time, while covariates shift the scale of the distribution to express how predictors affect survival.
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ScholarGateVõrdle meetodeid: Accelerated Failure Time Model · Log-Rank Test · Weibull Regression. Loetud 2026-06-19 aadressilt https://scholargate.app/et/compare