Table 2

Statistical results for hypertabastic proportional hazards and four comparison models for multiple myeloma data


-2Log likelihood
AIC
Estimate
SE
Chi-square
p-value

Hypertabastic
162.33
170.33




α


0.0853
0.0438
3.79
0.0559
β


0.4349
0.0712
37.34
<0.0001
Log(BUN)


1.8986
0.5697
11.11
0.0014
Hemogolobin


-0.0974
0.0539
3.27
0.0752
Weibull
162.66
170.66




α


0.0056
0.0067
0.70
0.4041
β


1.1403
0.1229
86.08
<0.0001
Log(BUN)


1.7451
0.5999
8.46
0.0049
Hemogolobin


-0.1112
0.0561
3.93
0.0517
Log-normal
162.61
170.61




α


0.0078
0.0095
0.67
0.4145
β


1.6153
0.3089
27.35
<0.0001
Log(BUN)


1.8935
0.5703
11.02
0.0015
Hemogolobin


-0.0929
0.0536
3.01
0.0876
Log-logistic
163.10
171.10




α


-5.6519
0.9369
36.39
<0.0001
β


1.2401
0.1452
72.96
<0.0001
Log(BUN)


1.8651
0.5464
11.65
0.0011
Hemogolobin


-0.0997
0.0526
3.58
0.0628
Cox
296.08
302.08




Log(BUN)


1.6744
0.6121
7.48
0.0062
Hemogolobin


-0.1189
0.0575
4.28
0.0385

Tabatabai et al. Theoretical Biology and Medical Modelling 2007 4:40   doi:10.1186/1742-4682-4-40