Figure 5.

Receiver operating characteristic (ROC) plot for the diagnosis of coccidioidomycosis with use of the inhibition ELISA. Patients with proven and probable coccidioidomycosis represent the true positive group while patients categorized as not coccidioidomycosis make up the true negative group. Patients classified as possible coccidioidomycosis were excluded from this analysis. The area under the curve (AUC) was 0.9652 (SE, 0.01441; 95% CI,.9370–.9939; P < .0001). With a cutoff of32.5 EIA units, the sensitivity is 89.74% and the specificity is 94.90%.