Figure 3.
Statistical power for rejecting H0: VE(0-18) ≤ 50% in favor of H1: VE(0-18) > 50% as a function of the true VE(0-18) (1-sided 0.025-level test). Here VE(0-18) = [1 – hazard ratio over the first 18 months] × 100%.
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