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. 2013 Jan 21;8(1):e51121. doi: 10.1371/journal.pone.0051121

Figure 6. ROC curves for various techniques evaluated in this study.

Figure 6

Performance of molecular tests reporting sensitivity and specificity. The curve is the regression line that summarises the overall diagnostic accuracy. Q* is an index defined by the point on the SROC curve where the sensitivity and specificity are equal, which is the point closest to the top-left corner of the ROC space. SROC: summary receiver operating curve; AUC: area under the curve; SE (AUC): standard error of AUC; SE (Q*): standard error of Q* index.