Table 3.

Simulation study for the proposed estimators. Results are based on 1000 replicated data sets with 1500 subjects at the first stage and allocation pattern allocation(120, 60) at the second stage under the cutpoints for each data set with S = (Z, W)^†

Method
	Mean	SE		CI		Mean	SE		CI
βE	0.302	0.053	0.054	0.957		0.506	0.057	0.056	0.949
βR	0.294	0.113	0.110	0.941		0.498	0.107	0.109	0.949
βW	0.297	0.109	0.109	0.953		0.506	0.115	0.117	0.956
	0.315	0.101	0.100	0.929		0.512	0.098	0.092	0.930
	0.317	0.099	0.096	0.926		0.503	0.059	0.058	0.949
	0.315	0.076	0.074	0.927		0.505	0.059	0.058	0.946
	0.287	0.072	0.071	0.929		0.506	0.059	0.057	0.941

^†See note for Table 1.