Table 2.

Given Study A, estimated power for Study B using the proposed approach with a sample size of 2,500 and empirical power at this sample size in settings (ii) and (iii)

	Setting (ii)
	t0 = 0.25	t0 = 0.50	t0 = 0.75	t0 = 1.0
Estimated power	0.732	0.905	0.955	0.979
Empirical power in Study B	0.695	0.879	0.940	0.980
	Setting (iii)
	t0 = 0.25	t0 = 0.50	t0 = 0.75	t0 = 1.0
Estimated power	0.924	0.990	0.998	1.000
Empirical power in Study B	0.867	0.976	0.995	1.000