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Fig. 3 | Parasites & Vectors

Fig. 3

From: A novel entomological index, Aedes aegypti Breeding Percentage, reveals the geographical spread of the dengue vector in Singapore and serves as a spatial risk indicator for dengue

Fig. 3

Receiver operating characteristics curves (black thick line) of classification of areas as “high-burden”, “moderate burden” and “low burden” by Breeding Percentage, and the 95% CI (grey shaded area) of sensitivity over a selected set of specificity. a Classification of “high-burden” or “moderate burden” versus “low burden”. The area under the curve is 0.812 with 95% CI: 0.793–0.831. The sensitivity-specificity combination given by the chosen threshold 20% is indicated on the curve: sensitivity = 75.28% (95% CI: 73.22–77.22%); specificity = 75.31% (95% CI: 71.89–78.57%). b Classification of “high-burden” versus “moderate burden” or “low burden”. The area under the curve is 0.840 with 95% CI: 0.824–0.856. The sensitivity-specificity combination given by the chosen threshold 40% is indicated on the curve: sensitivity = 83.85% (95% CI: 80.55–86.97%); specificity = 71.69% (95% CI: 69.52–73.86%)

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