Fig. 3.
ROC curve for HER2/neu expression as a diagnostic test for breast cancer (BC). Values below a HER2/neu threshold are indicative of BC. The blue dot on the curve indicates the optimal test (maximum Youden index, J = Se + Sp – 1.
ROC curve for HER2/neu expression as a diagnostic test for breast cancer (BC). Values below a HER2/neu threshold are indicative of BC. The blue dot on the curve indicates the optimal test (maximum Youden index, J = Se + Sp – 1.