পদ্ধতির তুলনা করুন

	ত্বরান্বিত ব্যর্থতা সময় (AFT) মডেল	Kaplan-Meier Survival Estimator	সার্ভাইভাল কার্ভ (Survival Curve) তুলনা করার জন্য লগ-র‍্যাঙ্ক পরীক্ষা
ক্ষেত্র	উত্তরজীবিতা	উত্তরজীবিতা	উত্তরজীবিতা
পরিবার	Survival analysis	Survival analysis	Survival analysis
উদ্ভবের বছর	1992	1958	1966
প্রবর্তক	Wei, L. J. (seminal review 1992); origins in parametric survival literature	Kaplan, E. L. & Meier, P.	Mantel, N.
ধরন	Parametric survival regression model	Non-parametric survival estimator	Non-parametric hypothesis test
মৌলিক উৎস	Wei, L. J. (1992). The Accelerated Failure Time Model: A Useful Alternative to the Cox Regression Model in Survival Analysis. Statistics in Medicine, 11(14–15), 1871–1879.	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.
অপর নাম	AFT model, parametric survival regression, Hızlandırılmış Başarısızlık Zamanı Modeli (AFT)	product-limit estimator, km curve, kaplan-meier sağkalım analizi	Mantel log-rank test, Mantel-Cox test, log-rank sağkalım testi, Log-Rank Testi
সম্পর্কিত	3	2	2
সারসংক্ষেপ	The Accelerated Failure Time model is a parametric regression approach to survival analysis — formally reviewed and advocated by L. J. Wei in 1992 — in which covariates act as multiplicative factors that directly stretch or compress the time-to-event scale. Unlike the Cox proportional-hazards model, which models how covariates shift the hazard rate, AFT models express the covariate effect as an acceleration or deceleration of the time axis itself.	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.