विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| पूर्वव्यापी कॉक्स आनुपातिक जोखिम× | उत्तरजीविता विश्लेषण× | |
|---|---|---|
| क्षेत्र≠ | महामारी विज्ञान | अनुसंधान सांख्यिकी |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1972 | 1958 |
| प्रवर्तक≠ | David R. Cox | Edward L. Kaplan and Paul Meier |
| प्रकार≠ | Semi-parametric survival regression | Method |
| मौलिक स्रोत≠ | Cox, D. R. (1972). Regression models and life-tables. Journal of the Royal Statistical Society, Series B, 34(2), 187–220. DOI ↗ | Kaplan, E. L., & Meier, P. (1958). Nonparametric estimation from incomplete observations. Journal of the American Statistical Association, 53(282), 457–481. DOI ↗ |
| उपनाम≠ | Cox PH regression (retrospective), retrospective Cox survival model, retrospective hazard regression, Cox model on historical data | Kaplan-Meier analysis, Cox regression, TTE analysis |
| संबंधित≠ | 5 | 3 |
| सारांश≠ | Retrospective Cox proportional hazards regression applies Cox's (1972) semi-parametric survival model to time-to-event data extracted from existing records — medical charts, administrative databases, registries, or biobanks. It estimates covariate-adjusted hazard ratios (HRs) without specifying the underlying baseline hazard, making it the dominant analytic tool when the investigator works backward from already-recorded outcomes and exposures. | 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. |
| ScholarGateडेटासेट ↗ |
|
|