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. Author manuscript; available in PMC: 2009 Jun 16.
Published in final edited form as: Am Heart J. 2008 Jun 6;156(1):31–36. doi: 10.1016/j.ahj.2008.03.021

Table III.

Statistical power based on expected event rates in control patients and relative risk reductions from full drug coverage

Proportion of control patients experiencing primary outcome Relative risk reduction from full drug coverage
0.15 0.2 0.25 0.3 0.35
0.2 0.70 0.92 0.99 1.0 1.0
0.25 0.79 0.96 1.0 1.0 1.0
0.3 0.85 0.98 1.0 1.0 1.0
0.35 0.89 0.99 1.0 1.0 1.0
0.4 0.92 1.0 1.0 1.0 1.0