Table 1.
θ=0.5 | θ=1 | θ=2 | θ=4 | |||||||||||||||
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Weibull | Cox PH | Weibull | Cox PH | Weibull | Cox PH | Weibull | Cox PH | |||||||||||
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Risk Factors | State | Para | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e | Bias | m.s.e |
Markov chain | ||||||||||||||||||
Age | 2 | 0.101 | −0.003 | 0.001 | −0.057 | 0.004 | −0.001 | 0.001 | −0.031 | 0.002 | 0.003 | 0.001 | −0.017 | 0.001 | 0 | 0.001 | −0.011 | 0.001 |
3 | 0.181 | 0.001 | 0.002 | −0.059 | 0.005 | −0.001 | 0.002 | −0.028 | 0.003 | 0.002 | 0.001 | −0.015 | 0.002 | −0.003 | 0.001 | −0.01 | 0.001 | |
4 | 0.177 | 0.067 | 0.008 | 0.014 | 0.004 | 0.061 | 0.006 | 0.031 | 0.004 | 0.054 | 0.005 | 0.038 | 0.004 | 0.051 | 0.005 | 0.041 | 0.003 | |
APOE4 | 2 | 0.859 | 0.015 | 0.209 | −0.102 | 0.179 | −0.015 | 0.211 | −0.082 | 0.169 | −0.002 | 0.181 | −0.064 | 0.2 | −0.027 | 0.173 | −0.025 | 0.205 |
3 | 1.313 | −0.001 | 0.287 | −0.106 | 0.245 | −0.05 | 0.297 | −0.092 | 0.253 | 0.01 | 0.211 | −0.044 | 0.249 | −0.036 | 0.2 | −0.044 | 0.249 | |
4 | 1.428 | 0.121 | 0.328 | −0.031 | 0.362 | −0.06 | 0.395 | −0.042 | 0.394 | 0.071 | 0.319 | −0.026 | 0.369 | 0.059 | 0.281 | 0.009 | 0.345 | |
Prior states: | ||||||||||||||||||
IC | 2 | −1.11 | 0.028 | 0.148 | −0.001 | 0.172 | 0.004 | 0.16 | 0.009 | 0.155 | −0.001 | 0.164 | −0.009 | 0.148 | 0.003 | 0.15 | 0.009 | 0.119 |
3 | −3.71 | 0.003 | 0.209 | −0.016 | 0.224 | 0.034 | 0.181 | 0.005 | 0.174 | 0.011 | 0.177 | −0.025 | 0.192 | −0.013 | 0.171 | 0.018 | 0.165 | |
4 | −5.23 | −0.892 | 6.221 | −0.928 | 5.858 | −0.617 | 4.269 | −0.987 | 5.698 | −0.659 | 4.396 | −0.646 | 4.088 | −0.653 | 4 | −0.619 | 4.109 | |
MCI | 2 | 0.74 | −0.026 | 0.148 | 0.075 | 0.168 | 0.012 | 0.15 | 0.067 | 0.167 | 0.054 | 0.161 | 0.058 | 0.16 | 0.05 | 0.13 | 0.072 | 0.134 |
3 | −2.31 | −0.031 | 0.197 | 0.05 | 0.189 | 0.081 | 0.174 | 0.095 | 0.183 | 0.061 | 0.151 | 0.066 | 0.165 | 0.061 | 0.129 | 0.089 | 0.158 | |
4 | −1.93 | 0.155 | 0.407 | 0.174 | 0.322 | 0.171 | 0.28 | 0.174 | 0.316 | 0.193 | 0.268 | 0.13 | 0.236 | 0.138 | 0.213 | 0.177 | 0.224 |