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22:34 Nov 24, 2008
English to Spanish translations [Non-PRO] Medical - Medical (general) / Clinical Studies-Statistical analyses
English term or phrase:the α-levels spent
The critical boundaries to be used at the interim analysis will be derived from the pre-specified error spending functions using the actual number of events observed and assuming the final DFS events number of 362. The critical value for the final analysis will be calculated using the exact number of observed DFS events at the cut-off date, and considering the α-levels spent at the interim analysis, in order to achieve a cumulative type I error smaller than 2.5%.