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| Regressione Cox dei rischi proporzionali× | Regressione di Sopravvivenza Parametrica di Weibull× | |
|---|---|---|
| Campo | Analisi di sopravvivenza | Analisi di sopravvivenza |
| Famiglia | Survival analysis | Survival analysis |
| Anno di origine≠ | 1972 | 1951 |
| Ideatore≠ | Cox, D. R. | Waloddi Weibull |
| Tipo≠ | Semi-parametric hazard regression model | Fully parametric survival regression model |
| Fonte seminale≠ | Cox, D. R. (1972). Regression Models and Life-Tables. Journal of the Royal Statistical Society: Series B, 34(2), 187–202. DOI ↗ | Kalbfleisch, J. D. & Prentice, R. L. (2002). The Statistical Analysis of Failure Time Data (2nd ed.). Wiley. DOI ↗ |
| Alias | cox ph model, proportional hazards model, cox ph regression, Cox Orantılı Tehlikeler Regresyonu | weibull aft model, weibull survival model, parametric survival regression, Weibull Regresyonu — Parametrik Hayatta Kalma |
| Correlati≠ | 3 | 4 |
| Sintesi≠ | Cox proportional hazards regression, introduced by D. R. Cox in 1972, is a semi-parametric model that estimates how one or more covariates affect the hazard — the instantaneous rate of experiencing an event — while leaving the baseline hazard function unspecified. It is the standard multivariable method in survival analysis and produces hazard ratios that quantify the relative risk associated with each predictor. | 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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