Figure 1. . Receiver operating characteristic curves modeling the probability of distinguishing prostate cancer from healthy subjects.

Measure equivalent to the area under the curve (AUC). Strongest predictors of having prostate cancer are PSA with AUC = 0.61 (p < 0.05) and PSA density with AUC = 0.76 (p < 0.05). IL-8 serum levels is not predictive of prostate cancer with AUC = 0.61 (p = 0.12).

PSA: Prostate-specific antigen.