Table 5.

Summary of simulation results: misspecification of the parametric baseline hazard functions. The true baseline hazard functions are Λ_0j (t) = ψ_j t^2/3j = 1, 2 and the assumed functions (under PLMEs) are Λ_0j (t) = ψ_j tj = 1, 2.

	True value	Proposed NPMLE		Proposed PMLE		j = 2 as Censored				j = 1 as Censored
						NPMLE		PMLE		NPMLE		PMLE
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
1000 clusters
β1	0.5	0.5065	0.2303	1.4070	0.3159	0.3813	0.2666	0.6406	0.3209	–	–	–	–
β2	2.5	2.4880	0.1729	3.2670	0.2252	–	–	–	–	2.4740	0.1731	3.5426	0.2387
${\sigma }_1^2$	1.0	0.9606	0.2383	2.7130	0.3267	0.8576	0.2073	2.8230	0.3065	–	–	–	–
${\sigma }_2^2$	1.5	1.4740	0.1699	3.1090	0.2115	–	–	–	–	1.4410	0.1714	3.5870	0.2102
ρ12	0.5	0.4984	0.1303	0.8997	0.1065	–	–	–	–	–	–	–	–
ψ1	1.0	–	–	1.8870	0.2790	–	–	1.4090	0.2491	–	–	–	–
ψ2	1.0	–	–	1.9630	0.2866	–	–	–	–	–	–	1.4200	0.2041
Λ01(0.10)	0.2154	0.2165	0.0303	0.1887	0.0279	0.0988	0.0181	0.1409	0.0249	–	–	–	–
Λ01(0.15)	0.2823	0.2818	0.0378	0.2831	0.0418	0.1443	0.0236	0.2113	0.0374	–	–	–	–
Λ01(0.20)	0.3420	0.3374	0.0463	0.3740	0.0558	0.1879	0.0306	0.2818	0.0498	–	–	–	–
Λ01(0.25)	0.3969	0.3833	0.0549	0.4718	0.0697	0.2274	0.0377	0.3523	0.0623	–	–	–	–
Λ02(0.10)	0.2154	0.2181	0.0235	0.1963	0.0287	–	–	–	–	0.2086	0.0227	0.1420	0.0204
Λ02(0.15)	0.2823	0.2854	0.0307	0.2945	0.0429	–	–	–	–	0.2700	0.0290	0.2130	0.0306
Λ02(0.20)	0.3420	0.3433	0.0379	0.3926	0.0573	–	–	–	–	0.3220	0.0352	0.2840	0.0408
Λ02(0.25)	0.3969	0.3918	0.0441	0.4908	0.0716	–	–	–	–	0.3652	0.0407	0.3550	0.0510