Short- and medium-term reproducibility of gastric emptying of a solid meal determined by a low dose of 13C-octanoic acid and nondispersive isotope-selective infrared spectrometry

Figure 4 Bland and Altman statistics (plot of differences between pairs vs their names) of the short-(open symbols) and medium-term( filled symbols) reproducibility of the measurement of the lag phase (T-Lag, panel A), the gastric half emptying time (T½ , panel B), and the gastric emptying coefficient (GEC, panel C) of the solid phase gastric emptying with a breath test using 75 mL (68 mg) 13C-octanoic acid and the isotope-selective nondispersive infrared spectrometry. On each panel the respective borders of the 95% confidence intervals are plotted - cf. the legend of the GEC graph, panel C.