Comparative evaluation of intragastric bile acids and hepatobiliary scintigraphy in the diagnosis of duodenogastric reflux

Figure 6 Receiver operator curve for ^99mTc-ethyl hepatic iminodiacetic acid test and gastric juice analyses in the diagnosis of duodenogastric reflux. Area under the curve was of 0.953 for ethyl hepatic iminodiacetic acid scintigraphy (P < 0.001, 95%CI: 0.901-1.000), 0.830 for total bile acid (TBA) (P < 0.001, 95%CI: 0.709-0.950), 0.722 for direct bilirubin (DBIL) (P = 0.008, 95%CI: 0.587-0.872) and 0.773 for total bilirubin (TBIL) (P = 0.002, 95%CI: 0.642-0.905).