Table 2.
Results from a simulation study comparing the mean MLE (Mean), mean asymptotic standard error (SE) and nominal 95% coverage of the estimated baseline hazard and association parameter under random and threshold censorings
| Model | log(λ)=−4.83 | α=0.22 | ||||
|---|---|---|---|---|---|---|
| Mean | SE | Coverage (%) | Mean | SE | Coverage (%) | |
| Time-dependent covariate | ||||||
| Constant hazard | −4.38 | 0.20 | 41.1 | 0.202 | 0.041 | 93.8 |
| Cox model | – | – | – | 0.199 | 0.043 | 93.2 |
| Joint model | ||||||
| Constant hazard | −4.90 | 0.25 | 94.8 | 0.205 | 0.040 | 94.7 |
| Cox model | 0.204 | 0.034 | 87.4 | |||
| Two-stage model | ||||||
| Constant hazard (every 2-years) | −4.32 | 0.20 | 33.2 | 0.198 | 0.036 | 93.3 |
| Constant hazard (every 6-months) | −4.65 | 0.21 | 81.3 | 0.183 | 0.032 | 88.9 |
| Constant hazard (every month) | −4.74 | 0.18 | 89.4 | 0.179 | 0.031 | 86.3 |
| Cox model (at failure times) | – | – | – | 0.172 | 0.033 | 83.2 |