Figure 2

Performance of univariate and multivariate cytokine models in predicting acute HIV infection. (a) ROC curves for individual biomarkers with best AHI predictive accuracy (AUC > 0.8). (b) Comparison between ROC curves for univariate IP-10 model (AUC = 0.88) and adjusted multivariate biomarker model (AUC = 0.98). (c) IP-10 univariate model cut-off points (pg/mL) and (d) multivariate model score cut points with their respective sensitivity and specificity values.