Skip to main content
. Author manuscript; available in PMC: 2013 Aug 10.
Published in final edited form as: Clin Gastroenterol Hepatol. 2008 Apr 14;6(6):635–643.e1. doi: 10.1016/j.cgh.2008.01.009

Figure 6.

Figure 6

ROC curve for the detection of accelerated gastric emptying with breath test measurements relative to the scintigraphic measurement of gastric emptying. Note the proportion emptied at 45 minutes provides fair sensitivity and specificity and the best performance is with all three breath samples. However, the 45 minute breath sample in combination with the 180 minute sample yielded a sensitivity of 93% at 80% specificity. The AUC for the combined 45 and 180 minute samples was 0.895. Combining the three time points (45, 150 and 180 minutes) resulted in an AUC of 0.902