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ROC curve for immunohistochemistry using clinicopathological data of 61 patients with familial colorectal cancer history. If the score is >49.4%, sensibility (Se) =88% (47-100%); specificity (Sp) =89% (77-96%); predictive positive value (PPV) =54% (33-98%); predictive negative value (NPV) =98% (86-99%) for detection of LS. ROC, receiver operating characteristic curves; LS, lynch syndrome.
