|
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
|
- aHypothetical Relative Increase in Infection Risk (RRZ0 → 1); bSurveillance case definition and demand of health care similar to those observed in Yap Island [11]; cSurveillance case definition similar to the one used in Yap Island with a five-fold increase in the demand of health care (detection probability); d Surveillance based of serologic surveys of random samples of the population