ROC analysis of MIC-1 and CA19-9. ROC analysis of MIC-1 and CA19-9. Left ROC curve, pancreatic cancer versus normal controls: black, CA19-9 (AUC, 0.78); blue, MIC-1 (AUC, 0.99); red, combination (AUC, 0.99). Central curve, pancreatic cancer versus chronic pancreatitis: black, CA19-9 (AUC, 0.74); blue, MIC-1 (AUC, 0.81); red, combination (AUC, 0.84). Right curve, pancreatic cancer versus noncancer: black, CA19-9 (AUC, 0.76); blue, MIC-1 (AUC, 0.90); red, combination (AUC, 0.91). Jens Koopmann et al. Clin Cancer Res 2006;12:442-446 ©2006 by American Association for Cancer Research