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Figure 1 :Receiver Operating Characteristic (ROC) curve of Salivary HCV Absorbance. The values on the X-axis and Y-axis represent 100-% specificity and % sensitivity, respectively for each value of salivary HCV-Ab absorbance used as a cut-off. The vertical arrow in the figure indicates the point of optimal sensitivity and specifi city (COV3, refer materials and methods). The horizontal arrow indicates the point of highest sensitivity (COV4, refer materials and methods)

Figure 1 :Receiver Operating Characteristic (ROC) curve of Salivary HCV Absorbance. The values on the X-axis and Y-axis represent 100-% specificity and % sensitivity, respectively for each value of salivary HCV-Ab absorbance used as a cut-off. The vertical arrow in the figure indicates the point of optimal sensitivity and specifi city (COV3, refer materials and methods). The horizontal arrow indicates the point of highest sensitivity (COV4, refer materials and methods)