Table 3.

Statistical results for the hypertabastic accelerated failure time model and four comparison models for glioma brain cancer data

	-2Log likelihood	AIC	Estimate	SE	Chi-square	p-value
Hypertabastic	68.72	76.72
α			0.0001312	0.0001956	0.45	0.4978
β			0.8343	0.1434	33.71	<0.0001
Radiosensitiser			0.4387	0.3437	1.63	0.2018
Age			0.0963	0.0205	22.18	<0.0001
Weibull	67.54	75.54
α			0.0000003	0.0000007	0.12	0.2741
β			1.4203	0.2456	33.44	<0.0001
Radiosensitiser			0.3614	0.3040	1.41	0.2345
Age			0.0977	0.0197	24.61	<0.0001
Log-normal	71.15	79.15
α			0.0000173	0.0000188	0.85	0.3563
β			0.9853	0.1501	43.10	<0.0001
Radiosensitiser			0.4498	0.3889	1.37	0.2427
Age			0.1003	0.0207	23.58	<0.0001
Log-logistic	70.45	78.45
α			-19.6913	3.6445	29.19	<0.0001
β			1.8338	0.3251	31.82	<0.0001
Radiosensitiser			0.5000	0.3718	1.81	0.1787
Age			0.0942	0.0208	20.52	<0.0001
Cox	99.43	107.43
Radiosensitiser			0.553	0.448	1.53	0.2169
Age			0.150	0.036	16.87	<0.0001