Table 3.
Estimation of Monthly VEa Under Unblinded Crossover Plan D”
| Months | True VEa | Bias | SE | SEE | CP |
|---|---|---|---|---|---|
| 0–1 | 89.6% | 0.0% | 2.9% | 2.9% | 95.4% |
| 1–2 | 87.7% | -0.1% | 3.0% | 3.0% | 95.6% |
| 2–3 | 85.4% | 0.0% | 3.0% | 3.1% | 95.8% |
| 3–4 | 82.7% | -0.1% | 3.3% | 3.3% | 95.3% |
| 4–5 | 79.5% | -0.1% | 3.8% | 3.8% | 95.3% |
| 5–6 | 75.8% | -0.2% | 4.8% | 4.8% | 95.5% |
| 6–7 | 71.3% | -0.1% | 6.6% | 6.5% | 95.1% |
| 7–8 | 66.0% | 0.0% | 9.2% | 9.0% | 95.0% |
| 8–9 | 59.7% | 0.1% | 12.8% | 12.6% | 95.2% |
| 9–10 | 52.3% | 0.3% | 19.4% | 18.9% | 95.2% |
Note: Bias and SE denote the bias and standard error of the estimator for VEa, SEE denotes the mean of the standard error estimator, and CP denotes the coverage probability of the 95% confidence interval.