Table 1 Description of observed and simulated data (median [interquartile range (IQR)]) used for estimating baseline MIR and to determine effect of lower density sampling.
County | County | Proportion of Traps Sampled | ||||||
|---|---|---|---|---|---|---|---|---|
Cook | DuPage | 50 | 60 | 70 | 80 | 90 | 100 | |
Number of Weeks | 240 | 182 | 422 | 422 | 422 | 422 | 422 | 422 |
Number of Positive Pools per Week | 21 [3, 103] | 4 [1, 17] | 5 [1, 23] | 6 [1, 28] | 7 [1, 33] | 7 [1, 37] | 8 [1, 42] | 9 [1, 47] |
Total Number of Culex Mosquitos per Week | 12381 [7130, 18232] | 2796 [2075, 3681] | 2677 [1360, 6972] | 3220.5 [1635, 8390] | 3770 [1907, 9771] | 4308 [2182, 11236] | 4850 [2478, 12610] | 5423 [2780, 14041] |
MIR | 0.0022 [0.0003, 0.0045] | 0.0014 [0.0003, 0.0080] | 0.0019 [0.0002, 0.0078] | 0.0019 [0.0002, 0.0078] | 0.0019 [0.0003, 0.0079] | 0.0019 [0.0003, 0.0079] | 0.0019 [0.0003, 0.0079] | 0.002 [0.0003, 0.0078] |
Number of Traps Used per Week | 373 [229, 506] | 92 [67, 116] | 84 [46, 202] | 101 [55, 242] | 118 [64, 282] | 134 [73, 322] | 151 [82, 363] | 168 [91, 402] |
Density of Traps (traps/mi2) | 0.39 [0.24, 0.54] | 0.28 [0.20, 0.36] | 0.16 [0.11, 0.23] | 0.19 [0.13, 0.28] | 0.22 [0.15, 0.33] | 0.26 [0.17, 0.37] | 0.29 [0.2, 0.42] | 0.32 [0.22, 0.47] |
Probability of False Negative | NA | NA | 0.09 | 0.06 | 0.04 | 0.03 | 0.01 | NA |
