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Search results with tag "Logrank"
The Cox Proportional Hazards Regression Model
publicifsv.sund.ku.dkOne such test is the score test and, in fact, for a binary covariate this score test is simply the logrank test. Thus, the logrank test is closely related to the Cox model and, therefore, it has certain optimality properties against proportional hazards alternatives. 14/58
STAT331 Logrank Test Introduction - Stanford University
web.stanford.edu˝5 = 18:7], it must follow that Oj = Ej and Vj = 0 at and beyond this time. Thus, we would get the same answer (i.e., Z) if the construction stopped at the last time when both Y0(˝j) and Y1(˝j) are > 0. • Although it is not obvious from the construction, the logrank test is a directional test oriented towards alternatives where S1(t) = (S0(t)) , or equivalently, when h1(t)=h0(t) = .