Table 5.

Analysis results of the inflammatory breast cancer study.

	Treatment	Ki67	Treatment*Ki67	Treatment*Ki67+Treatment	Λ(3)	Λ(5)
Standard Cox regression with the partial likelihood (PL)
Estimate	0.282	1.516	−1.299	−1.017	0.249	0.383
Standard error	0.641	0.607	0.679	0.228	0.155	0.237
Wald p-value	0.660	0.013	0.056	<0.001
Double empirical likelihood (DEL)
Estimate	0.744	1.628	−1.417	−0.673	0.157	0.235
Standard error	0.629	0.659	0.725	0.127	0.102	0.155
Wald p-value	0.236	0.014	0.051	<0.001
Extended Double empirical likelihood (DEL-E)
Estimate	0.701	1.587	−1.355	−0.653	0.177	0.271
Standard error	0.622	0.645	0.712	0.118	0.136	0.208
Wald p-value	0.260	0.014	0.057	<0.001
Adaptive double empirical likelihood (ADEL)
Estimate	0.369	1.552	−1.341	−0.972	0.224	0.342
Standard error	0.646	0.620	0.690	0.210	0.137	0.210
Wald p-value	0.568	0.012	0.052	<0.001