Σύγκριση μεθόδων

	Παλινδρόμηση Αναλογικών Κινδύνων του Cox	Εκτιμητής Επιβίωσης Kaplan-Meier	Δοκιμή Log-Rank για Σύγκριση Καμπυλών Επιβίωσης
Πεδίο	Ανάλυση Επιβίωσης	Ανάλυση Επιβίωσης	Ανάλυση Επιβίωσης
Οικογένεια	Survival analysis	Survival analysis	Survival analysis
Έτος προέλευσης	1972	1958	1966
Δημιουργός	Cox, D. R.	Kaplan, E. L. & Meier, P.	Mantel, N.
Τύπος	Semi-parametric hazard regression model	Non-parametric survival estimator	Non-parametric hypothesis test
Θεμελιώδης πηγή	Cox, D. R. (1972). Regression Models and Life-Tables. Journal of the Royal Statistical Society: Series B, 34(2), 187–202.	Kaplan, E. L. & Meier, P. (1958). Nonparametric Estimation from Incomplete Observations. Journal of the American Statistical Association, 53(282), 457–481.	Mantel, N. (1966). Evaluation of Survival Data and Two New Rank Order Statistics Arising in Its Consideration. Cancer Chemotherapy Reports, 50(3), 163–170.
Εναλλακτικές ονομασίες	cox ph model, proportional hazards model, cox ph regression, Cox Orantılı Tehlikeler Regresyonu	product-limit estimator, km curve, kaplan-meier sağkalım analizi	Mantel log-rank test, Mantel-Cox test, log-rank sağkalım testi, Log-Rank Testi
Συναφείς	3	2	2
Σύνοψη	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.	The Kaplan-Meier estimator, introduced by Kaplan and Meier in 1958, is a non-parametric method that estimates the survival curve — the probability of remaining event-free over time — from right-censored time-to-event data. The log-rank test is the companion procedure used to compare survival curves between groups.	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.