قارن الطرق

	تقدير كابلان-ماير	اختبار لوغاريتم الرتب للمقارنة بين منحنيات البقاء
المجال	الإحصاء	تحليل البقاء
العائلة	Survival analysis	Survival analysis
سنة النشأة	1958	1966
صاحب الطريقة	Edward L. Kaplan and Paul Meier	Mantel, N.
النوع	Nonparametric estimator	Non-parametric hypothesis test
المصدر التأسيسي	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.
الأسماء البديلة	KM estimator, product-limit estimator, Kaplan-Meier curve, survival curve estimator	Mantel log-rank test, Mantel-Cox test, log-rank sağkalım testi, Log-Rank Testi
ذات صلة	2	2
الملخص	The Kaplan-Meier estimator is a nonparametric method for estimating the survival function S(t) — the probability that an individual survives beyond time t — from data that include censored observations. Introduced by Edward L. Kaplan and Paul Meier in their landmark 1958 JASA paper, it is the standard first step in any survival analysis and is among the most-cited statistical methods in biomedical research.	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.