Table 3.

Bias and coverage in point and interval estimates of expected survival when β = 3

Model		True	Weibull	Cox-like	Poly-Weibull
1:Weibull	Mean (95% CI)	6.72	6.76	7.11	6.95
	Bias (%)		0.04 (0.6%)	0.39 (5.8%)	0.23 (3.40%)
	Coverage		0.92	0.96	0.84
2: Decreasing	Mean (95% CI)	8.09	7.08	7.78	7.68
cause-specific	Bias (%)		−1.01 (−12.5%)	−0.31 (−3.8%)	−0.41 (−5.1%)
relative hazard	Coverage		0.52	0.96	0.82
3: Rapidly decreasing	Mean (95% CI)	9.20	6.77	9.13	8.71
cause-specific relative	Bias (%)		−2.43 (−26.4%)	−0.07 (−0.8%)	−0.49 (−5.3%)
hazard	Coverage		0.00	1.00	0.86