Figure 3.

Receiver operating characteristic (ROC) curve showing predictive accuracy of multivariate logistic regression model. The predictability for SDF of this logistic model reached 94.1% in adults with an overall accuracy of 77.4%. Hosmer–Lemeshow test was applied to check the fitness of the multiple logistic regression model (χ² = 12.54, degree of freedom = 8, P = 0.129), indicating that the model was fit. Area under ROC curve was 0.768, implying acceptable discrimination of the model. This figure appears in color at www.ajtmh.org.