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. 2007 Apr 10;64(3):266–277. doi: 10.1111/j.1365-2125.2007.02887.x

Table 2.

Statistical power when introducing different magnitudes of correlation between CL and EC50 or CL and Emax

RDCT RCCT RBCT
Model-based Traditional Model-based Traditional Model-based Traditional
Magnitude of correlation EC50 Emax EC50 Emax EC50 Emax EC50 Emax EC50 Emax EC50 Emax
LOW dose range
−0.8 0.81 1 0.46 0.52 0.87 0.82 0.44 0.39 0.61 0.63 0.39 0.32
−0.2 0.81 0.86 0.46 0.47 0.82 0.79 0.47 0.44 0.61 0.60 0.39 0.39
 0 0.85 0.85 0.50 0.50 0.80 0.80 0.46 0.46 0.61 0.61 0.39 0.39
 0.2 0.86 0.83 0.51 0.45 0.81 0.78 0.46 0.44 0.61 0.60 0.39 0.40
 0.8 0.94 0.80 0.46 0.22 0.86 0.81 0.46 0.38 0.61 0.61 0.39 0.33
WIDE dose range
−0.8 0.95 1 0.70 0.65 0.96 0.96 0.67 0.63 0.86 0.86 0.62 0.50
−0.2 0.95 0.96 0.70 0.71 0.95 0.95 0.71 0.71 0.86 0.85 0.62 0.62
 0 0.96 0.96 0.72 0.72 0.95 0.95 0.70 0.70 0.86 0.86 0.62 0.62
 0.2 0.96 0.95 0.73 0.69 0.95 0.95 0.71 0.69 0.86 0.87 0.62 0.62
 0.8 0.99 0.93 0.63 0.34 0.96 0.96 0.68 0.63 0.86 0.86 0.62 0.52

The default parameter variability levels are used and the independent variable is biomarker.