পদ্ধতির তুলনা করুন

	সম্ভাব্য মাত্রা-প্রতিক্রিয়া বিশ্লেষণ	কক্স প্রপোর্শনাল হ্যাজার্ডস
ক্ষেত্র	মহামারীবিদ্যা	মহামারীবিদ্যা
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1965 (Hill's criteria); widely applied through 1980s–present	1972
প্রবর্তক	Bradford Hill (causal criteria including dose-response, 1965); formalized in modern epidemiology by Rothman, Greenland and others	Sir David Roxbee Cox
ধরন	Analytical epidemiological study design	Semi-parametric regression model
মৌলিক উৎস	Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641	Cox, D. R. (1972). Regression models and life-tables. Journal of the Royal Statistical Society: Series B (Methodological), 34(2), 187–202.
অপর নাম	prospective exposure-response analysis, prospective trend analysis, forward-looking dose-response study, prospective gradient analysis	Cox regression, Cox PH model, proportional hazards model, CPH
সম্পর্কিত	4	5
সারসংক্ষেপ	Prospective dose-response analysis is an epidemiological approach that measures exposure levels in a defined population before outcomes occur, then quantifies how the risk or magnitude of an outcome changes systematically as exposure increases. By collecting exposure data prospectively, researchers can establish temporal sequence, reduce recall bias, and assess whether a biological gradient — one of Hill's classic causal criteria — exists between the agent of interest and a health outcome.	The Cox proportional hazards model is a semi-parametric regression method that estimates the effect of one or more covariates on the hazard — the instantaneous rate of an event such as death, relapse, or failure — while making no assumption about the shape of the baseline hazard function. Introduced by David Cox in 1972, it is the dominant tool for multivariable survival analysis in clinical and epidemiological research.