Mfumo wa Kuongeza kasi ya Kushindwa kwa Wakati (AFT)
Mfumo wa Kuongeza kasi ya Kushindwa kwa Wakati (Accelerated Failure Time - AFT) ni mbinu ya urejeshaji wa kipekee (parametric regression) kwa ajili ya uchanganuzi wa muda wa kuishi—ambao ulitathminiwa rasmi na kutetewa na L. J. Wei mwaka 1992—ambapo vigezo mtawalia (covariates) hufanya kazi kama vipengele vinavyoongeza au kupunguza kasi ya kiwango cha muda hadi kutokea kwa tukio. Tofauti na mfumo wa uwiano wa hatari wa Cox (Cox proportional-hazards model), ambao huangalia jinsi vigezo mtawalia vinavyobadilisha kiwango cha hatari, mifumo ya AFT huonyesha athari ya kigezo mtawalia kama kuongeza kasi au kupunguza kasi ya mhimili wa muda wenyewe.
Soma mbinu kamili
Ingia kwa akaunti ya bure ili kusoma sehemu hii.
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Vyanzo
- 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. DOI: 10.1002/sim.4780111409 ↗
- Kalbfleisch, J. D. & Prentice, R. L. (2002). The Statistical Analysis of Failure Time Data (2nd ed.). Wiley. ISBN: 978-0471363576
- Kleinbaum, D. G. & Klein, M. (2012). Survival Analysis: A Self-Learning Text (3rd ed.). Springer. ISBN: 978-1441966452
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 1). Accelerated Failure Time (AFT) Model. ScholarGate. https://scholargate.app/sw/survival/accelerated-failure-time
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Kikokotozi cha Kuishi cha Kaplan-MeierUchanganuzi wa Uhai↔ compare
- Kipimo cha Log-Rank cha Kulinganisha Milia ya UhaiUchanganuzi wa Uhai↔ compare
- Regressioni ya Kuishi ya Weibull ya ParametricUchanganuzi wa Uhai↔ compare
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