Table 2.
Percent bias and confidence interval coverage of misspecified log-duration joint model parameters.
| parameters | Survival: Frailty: |
Simulation Scenarios | ||
|---|---|---|---|---|
| Weibull Normal |
Weibull log-gamma |
lognormal Normal |
||
| α | % bias 95% CI |
0.3% 95.6% |
2% 80.5% |
3% 46.1% |
| β | % bias 95% CI |
−0.3% 95.3% |
−0.2% 95.8% |
2% 45.5% |
| τ | % bias 95% CI |
−0.1% 96.6% |
−0.3% 94.3% |
- - |
| κ | % bias 95% CI |
0.02% 94.7% |
4% 66.7% |
2% 87.1% |
| σ | % bias 95% CI |
−1% 94.2% |
0.7% 94.8% |
1% 92.5% |
| 5-year mean HPV clearance |
% bias 95% CI |
−0.08% - |
−0.1% - |
−0.3% - |
| 5-year stdev HPV clearance |
% bias 95% CI |
0.06% - |
4% - |
7% - |
| 5-year mean precancer/cancer risk |
% bias 95% CI |
−0.8% - |
2% - |
2% - |
| 5-year stdev precancer/cancer risk |
% bias 95% CI |
0.2% - |
−8% - |
6% - |