Fig. 2. Receiver operating characteristics curve of spot hydrogen and methane breath test for predicting response to a low fermentable oligo-, di-, mono-saccharides, and polyols (FODMAP) dietary advice. Hydrogen level > 8 parts per million (ppm) (bold line) identified patients as low FODMAP responders (area under the curve [AUC], 0.692; 95% CI, 0.51-0.86; P < 0.05). Methane level > 2.250 ppm (dash line) identified patients as low FODMAP responders (AUC, 0.68; 95% CI, 0.51-0.85; P = 0.060).
© J Neurogastroenterol Motil
