Table 3 Standard power of the prospective space-time scan statistics – flexible and cylindrical – at different days of the outbreak
From: A flexibly shaped space-time scan statistic for disease outbreak detection and monitoring
| Â | Â | Â | Power on Day 31 | Power on Day 32 | Power on Day 33 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Outbreak areas | No. of zip codes s* | excess risk | flex. K = 20 | cylind. K = 20 | cylind. 50% pop | flex. K = 20 | cylind. K = 20 | cylind. 50% pop | flex. K = 20 | cylind. K = 20 | cylind. 50% pop |
Cluster A | 1 | high | 0.764 | 0.860 | 0.862 | 0.988 | 0.996 | 0.996 | 0.999 | 0.999 | 0.999 |
Cluster A5 | 5 | high | 0.797 | 0.850 | 0.847 | 0.994 | 0.996 | 0.996 | 1.000 | 1.000 | 1.000 |
The Rockaways | 5 | high | 0.769 | 0.855 | 0.840 | 0.992 | 0.997 | 0.997 | 1.000 | 1.000 | 1.000 |
Hudson River | 20 | high | 0.656 | 0.597 | 0.632 | 0.964 | 0.933 | 0.949 | 0.998 | 0.994 | 0.995 |
Cluster A | 1 | med. | 0.272 | 0.357 | 0.357 | 0.651 | 0.733 | 0.737 | 0.844 | 0.915 | 0.916 |
Cluster A5 | 5 | med. | 0.382 | 0.435 | 0.428 | 0.752 | 0.801 | 0.795 | 0.914 | 0.940 | 0.941 |
The Rockaways | 5 | med. | 0.261 | 0.373 | 0.348 | 0.648 | 0.768 | 0.759 | 0.848 | 0.924 | 0.917 |
Hudson River | 20 | med. | 0.290 | 0.257 | 0.297 | 0.631 | 0.582 | 0.610 | 0.845 | 0.782 | 0.803 |