Table 4.

Estimated percent bias and coverage probability for β₁ and θ for six analyses described in Section 5.2, across six simulation scenarios given in Table 3. Throughout values are based on results from R=500 simulated datasets.

			Percent Bias						Coverage Probability
Scenario		True value	Weibull -MVN	Weibull -DPM	Weibull -SF	PEM -MVN	PEM -DPM	Spline -SF	Weibull -MVN	Weibull -DPM	Weibull -SF	PEM -MVN	PEM -DPM	Spline -SF
1	β11	0.50	0.1	0.2	−19.8	0.4	0.4	−21.0	0.96	0.96	0.01	0.95	0.96	0.00
	β12	0.80	0.2	0.3	−19.7	0.5	0.4	−21.0	0.95	0.95	0.00	0.96	0.97	0.00
	β13	−0.50	0.3	0.3	−19.8	0.3	0.3	−21.2	0.97	0.96	0.31	0.96	0.96	0.25
	θ	0.50	1.0	1.3		1.4	1.2		0.95	0.95		0.93	0.94
2	β11	0.50	−0.1	−0.0	−31.8	0.1	0.1	−32.8	0.94	0.94	0.00	0.94	0.93	0.00
	β12	0.80	0.1	0.2	−31.7	0.4	0.3	−32.7	0.97	0.97	0.00	0.94	0.95	0.00
	β13	−0.50	1.2	1.3	−31.1	1.1	1.1	−32.2	0.94	0.95	0.05	0.94	0.94	0.04
	θ	1.00	0.4	0.7		0.7	0.6		0.94	0.95		0.94	0.95
3	β11	0.50	0.3	0.3	−19.9	0.7	0.7	−21.0	0.94	0.94	0.00	0.93	0.94	0.00
	β12	0.80	0.4	0.4	−19.8	0.8	0.8	−20.9	0.94	0.94	0.00	0.94	0.94	0.00
	β13	−0.50	0.4	0.3	−20.1	0.5	0.6	−21.2	0.96	0.96	0.31	0.95	0.96	0.27
	θ	0.50	2.0	2.1		3.2	3.2		0.96	0.96		0.93	0.95
4	β11	0.50	3.7	3.7	0.2	4.7	4.6	0.3	0.87	0.86	0.96	0.81	0.83	0.96
	β12	0.80	3.6	3.6	−0.0	4.5	4.5	0.1	0.80	0.79	0.95	0.69	0.70	0.95
	β13	−0.50	4.0	4.0	0.2	4.8	4.7	0.2	0.93	0.94	0.94	0.93	0.93	0.93
	θ	0.00
5	β11	0.50	−0.3	0.1	−20.3	0.0	0.3	−21.1	0.94	0.95	0.00	0.96	0.96	0.00
	β12	0.80	0.0	0.3	−20.0	0.3	0.6	−20.9	0.95	0.95	0.00	0.96	0.96	0.00
	β13	−0.50	−0.2	0.2	−20.4	−0.2	0.2	−21.3	0.94	0.94	0.29	0.94	0.94	0.25
	θ	0.50	−0.2	1.0		0.4	1.3		0.95	0.95		0.95	0.96
6	β11	0.50	9.3	9.4	−22.1	0.4	0.3	−25.9	0.58	0.57	0.00	0.94	0.94	0.00
	β12	0.80	9.7	9.8	−22.0	0.5	0.5	−25.8	0.20	0.20	0.00	0.94	0.95	0.00
	β13	−0.50	10.2	10.2	−21.6	0.8	0.7	−26.1	0.81	0.80	0.21	0.93	0.94	0.10
	θ	0.50	52.8	53.0		1.8	1.7		0.00	0.00		0.95	0.96