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	Weibull parametrisk överlevnadsregression	Bayesiansk överlevnadsanalys
Ämnesområde	Överlevnadsanalys	Bayesiansk statistik
Familj	Survival analysis	Bayesian methods
Ursprungsår	1951	2001
Upphovsperson	Waloddi Weibull	Ibrahim, Chen & Sinha
Typ	Fully parametric survival regression model	Bayesian time-to-event model
Ursprungskälla	Kalbfleisch, J. D. & Prentice, R. L. (2002). The Statistical Analysis of Failure Time Data (2nd ed.). Wiley.	Ibrahim, J.G., Chen, M.-H. & Sinha, D. (2001). Bayesian Survival Analysis. Springer.
Alias	weibull aft model, weibull survival model, parametric survival regression, Weibull Regresyonu — Parametrik Hayatta Kalma	bayesian sağkalım analizi, bayesian time-to-event analysis, bayesian hazard model
Närliggande	4	4
Sammanfattning	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.	Bayesian survival analysis applies Bayesian inference to time-to-event models — Cox proportional hazards, parametric (Weibull, exponential), and cure models. Formalised comprehensively by Ibrahim, Chen and Sinha (2001), the approach encodes prior knowledge about hazard rates and regression coefficients, then updates it with censored survival data to yield posterior hazard ratios and credible intervals rather than single point estimates.