Table 3.

Performance of the joint Cox model estimate (model (3)) of e^β₂and e^{β₁−β₂}

		eβ2			eβ1−β2
	bias	cov	Power/Type I error	bias	cov	Power/Type I error
(a)	0.9	95.2	4.8	2.4	94.2	80.4
(b)	0.0	95.8	59.2	1.9	96.0	4.0
(c)	−0.4	95.4	4.6	−0.1	95.4	77.6
(d)	−0.6	94.6	82.0	−0.0	94.4	5.6
(e)	0.9	96.6	3.4	3.8	95.5	87.8
(f)	−1.1	95.2	93.8	3.5	95.6	4.4
(g)	−0.1	94.8	5.2	0.7	94.4	99.8
(h)	−0.2	95.4	99.8	0.6	95.4	4.6

Note: Bias, coverage and power/type I error were defined the same as in Table 2.