השוואת שיטות

	רגרסיית סיכונים יחסיים של קוקס	מבחן לוג-רנְק להשוואת עקומות הישרדות
תחום	הישרדות	הישרדות
משפחה	Survival analysis	Survival analysis
שנת המקור	1972	1966
הוגה השיטה	Cox, D. R.	Mantel, N.
סוג	Semi-parametric hazard regression model	Non-parametric hypothesis test
מקור מכונן	Cox, D. R. (1972). Regression Models and Life-Tables. Journal of the Royal Statistical Society: Series B, 34(2), 187–202.	Mantel, N. (1966). Evaluation of Survival Data and Two New Rank Order Statistics Arising in Its Consideration. Cancer Chemotherapy Reports, 50(3), 163–170.
כינויים	cox ph model, proportional hazards model, cox ph regression, Cox Orantılı Tehlikeler Regresyonu	Mantel log-rank test, Mantel-Cox test, log-rank sağkalım testi, Log-Rank Testi
קשורות	3	2
תקציר	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 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.