Table 3. Sensitivity, time to outbreak detection (timeliness), proportion of outbreaks detected through syndromic surveillance before clinical case finding, and mean detection benefit of syndromic surveillance compared with clinical case finding for 3 release scenarios and 2 levels of specificity*.
| Amount released (kg) | Specificity 0.900 (1 false alarm every 10 d) |
Specificity 0.975 (1 false alarm every 40 d) |
||||||
|---|---|---|---|---|---|---|---|---|
| Sensitivity per outbreak | Mean timeliness, d | Proportion with detection benefit | Mean detection benefit, d | Sensitivity per outbreak | Mean timeliness, d | Proportion with detection benefit | Mean detection benefit (d) | |
| 1 | 1.00 | 3.1 (0, 5) | 0.59 | 1.0 (0, 3.3) | 0.98 | 4.3 (2, 7) | 0.28 | 0.32 (0, 1.0) |
| 0.1 | 0.99 | 3.3 (0, 6) | 0.55 | 1.0 (0, 3.5) | 0.95 | 4.7 (2, 7) | 0.24 | 0.33 (0, 1.1) |
| 0.01 | 0.94 | 3.6 (0, 7) | 0.51 | 1.1 (0, 3.7) | 0.82 | 5.1 (2, 8) | 0.19 | 0.33 (0, 1.3) |
*Values in parentheses are 10th and 90th percentiles of the distribution.