পদ্ধতির তুলনা করুন

	সার্ভাইভাল অ্যানালাইসিস	প্রোপেনসিটি স্কোর ম্যাচিং (Propensity Score Matching)
ক্ষেত্র	গবেষণা পরিসংখ্যান	গবেষণা পরিসংখ্যান
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1958	1983
প্রবর্তক	Edward L. Kaplan and Paul Meier	Paul Rosenbaum and Donald Rubin
ধরন	Method	Method
মৌলিক উৎস	Kaplan, E. L., & Meier, P. (1958). Nonparametric estimation from incomplete observations. Journal of the American Statistical Association, 53(282), 457–481.	Rosenbaum, P. R., & Rubin, D. B. (1983). The central role of the propensity score in observational studies for causal effects. Biometrika, 70(1), 41–55.
অপর নাম	Kaplan-Meier analysis, Cox regression, TTE analysis	PSM, propensity score weighting, covariate balance
সম্পর্কিত	3	3
সারসংক্ষেপ	Survival analysis is a collection of statistical methods for modeling time from a defined starting point until an event of interest occurs (disease, recovery, death, equipment failure). Kaplan and Meier's nonparametric estimator (1958) and David Cox's proportional hazards model (1972) jointly enabled analysis of censored data—individuals whose event times are unknown because they left the study or were still event-free at follow-up. Indispensable in oncology, cardiology, infectious disease research, engineering reliability, and any field where time-to-event matters.	Propensity score matching (PSM) is a method for reducing confounding bias in observational studies by balancing baseline characteristics between treatment groups, simulating randomization. Developed by Rosenbaum and Rubin (1983), it estimates the probability of receiving treatment given observed covariates, then matches or weights treated and control individuals with similar treatment probabilities. Widely used in medicine, epidemiology, and policy evaluation when randomized trials are infeasible or unethical, enabling estimation of treatment effects while controlling for selection bias.