Table 1.
True model | n | parameter | Truth | General PWC model |
General Cox model |
Restricted Cox model |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | SD | ESE | CP | Mean | SD | ESE | CP | Mean | SD | ESE | CP | ||||
Restricted model | 250 | β 1 | 1 | 1.01 | 0.26 | 0.27 | 0.95 | 1.05 | 0.29 | 0.29 | 0.95 | 1.02 | 0.26 | 0.26 | 0.94 |
β 2 | 0.8 | 0.81 | 0.28 | 0.28 | 0.95 | 0.84 | 0.31 | 0.30 | 0.95 | 0.81 | 0.24 | 0.23 | 0.94 | ||
β 3 | 0.8 | 0.79 | 0.31 | 0.31 | 0.95 | 0.83 | 0.34 | 0.33 | 0.94 | 0.81 | 0.24 | 0.23 | 0.94 | ||
1 | 1.16 | 0.69 | 0.66 | 0.91 | 1.29 | 0.86 | 0.79 | 0.91 | 1.10 | 0.56 | 0.49 | 0.91 | |||
0.8 | 0.77 | 0.27 | 0.27 | 0.94 | 0.90 | 0.38 | 0.35 | 0.92 | 0.83 | 0.25 | 0.24 | 0.95 | |||
General model | 100 | β 1 | 1 | 1.04 | 0.43 | 0.43 | 0.94 | 1.21 | 0.55 | 0.55 | 0.93 | 1.11 | 0.47 | 0.47 | 0.93 |
β 2 | 1 | 1.04 | 0.45 | 0.43 | 0.95 | 1.22 | 0.57 | 0.55 | 0.94 | 0.97 | 0.45 | 0.42 | 0.96 | ||
β 3 | 0.5 | 0.58 | 0.51 | 0.49 | 0.94 | 0.75 | 0.62 | 0.60 | 0.94 | 0.97 | 0.45 | 0.42 | 0.77 | ||
1 | 1.36 | 1.07 | 1.03 | 0.92 | 2.33 | 2.10 | 1.96 | 0.93 | 1.71 | 1.23 | 1.13 | 0.90 | |||
0.8 | 0.77 | 0.40 | 0.40 | 0.93 | 1.26 | 0.89 | 0.83 | 0.93 | 1.05 | 0.60 | 0.53 | 0.92 | |||
250 | β 1 | 1 | 1.02 | 0.27 | 0.28 | 0.96 | 1.07 | 0.31 | 0.31 | 0.94 | 1.08 | 0.28 | 0.28 | 0.94 | |
β 2 | 1 | 1.01 | 0.28 | 0.28 | 0.95 | 1.06 | 0.32 | 0.31 | 0.93 | 0.90 | 0.27 | 0.25 | 0.91 | ||
β 3 | 0.5 | 0.49 | 0.32 | 0.31 | 0.94 | 0.55 | 0.35 | 0.34 | 0.93 | 0.90 | 0.27 | 0.25 | 0.62 | ||
1 | 1.19 | 0.75 | 0.70 | 0.94 | 1.40 | 1.02 | 0.88 | 0.89 | 1.49 | 0.70 | 0.62 | 0.87 | |||
0.8 | 0.77 | 0.27 | 0.28 | 0.94 | 0.94 | 0.43 | 0.39 | 0.91 | 0.95 | 0.29 | 0.29 | 0.93 | |||
600 | β 1 | 1 | 1.00 | 0.18 | 0.19 | 0.96 | 1.01 | 0.19 | 0.19 | 0.95 | 1.04 | 0.18 | 0.18 | 0.95 | |
β 2 | 1 | 0.99 | 0.18 | 0.19 | 0.96 | 1.01 | 0.20 | 0.19 | 0.95 | 0.89 | 0.17 | 0.16 | 0.87 | ||
β 3 | 0.5 | 0.49 | 0.20 | 0.21 | 0.95 | 0.52 | 0.22 | 0.21 | 0.95 | 0.89 | 0.17 | 0.16 | 0.31 | ||
1 | 1.06 | 0.49 | 0.46 | 0.94 | 1.14 | 0.57 | 0.51 | 0.93 | 1.38 | 0.37 | 0.36 | 0.81 | |||
0.8 | 0.79 | 0.20 | 0.20 | 0.95 | 0.86 | 0.25 | 0.23 | 0.93 | 0.94 | 0.18 | 0.18 | 0.88 |