| RRZ0→1a | Case definition sensitivity | Case definition specificity | Expected observed risk ratio | Expected observed case ratio | False positive proportion |
---|---|---|---|---|---|---|
Regular surveillanceb | 1 | 2.0 | 95.9 | 1.00 | 0.90 | 94.89 |
2 | 2.0 | 95.9 | 0.95 | 0.85 | 92.27 | |
5 | 2.0 | 95.9 | 0.78 | 0.70 | 83.52 | |
8 | 2.0 | 95.9 | 0.62 | 0.56 | 73.11 | |
Enhanced surveillancec | 1 | 9.8 | 79.7 | 1.00 | 0.90 | 94.89 |
2 | 9.8 | 79.7 | 0.95 | 0.85 | 92.27 | |
5 | 9.8 | 79.7 | 0.78 | 0.70 | 83.52 | |
8 | 9.8 | 79.7 | 0.62 | 0.56 | 73.11 | |
Serologic surveillanced | 1 | 37.7 | 81.1 | 1.00 | 0.90 | 81.86 |
2 | 37.7 | 81.1 | 1.09 | 0.98 | 74.36 | |
5 | 37.7 | 81.1 | 1.36 | 1.23 | 55.17 | |
8 | 37.7 | 81.1 | 1.63 | 1.47 | 39.77 |