Table 2.
Average sensitivity, specificity and time to detection for space–time permutation scan statistics with various combinations of spatial and temporal cluster size.
| Spatial cluster size (km) | Temporal cluster size = 3d |
Temporal cluster size = 7d |
Temporal cluster size = 10d |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Sensitivity (%) | Specificity (%) | Time to detection (d) | Sensitivity (%) | Specificity (%) | Time to detection (d) | Sensitivity (%) | Specificity (%) | Time to detection (d) | |
| 2 | 96.9 | 99.9 | 0.2 | 90.6 | 99.9 | 0.4 | 96.9 | 99.9 | 0.3 |
| 5 | 84.4 | 99.9 | 0.5 | 81.3 | 99.9 | 0.6 | 81.3 | 99.9 | 0.6 |
| 8 | 84.4 | 99.9 | 0.5 | 84.4 | 99.9 | 0.5 | 87.5 | 99.9 | 0.4 |
| 10 | 81.3 | 99.9 | 0.6 | 81.3 | 99.9 | 0.6 | 84.4 | 99.9 | 0.5 |