Figure 1. Medians and 95 % confidence intervals of rising H₂ in parts per million (ppm) during lactose breath tests in 433 LIT patients with >20 ppm increase of expiratory H₂ from baseline. Included are 153 LIT-only patients without H. pylori infection. Of 280 H. pylori infected LIT patients 58 were with additional LIT only, 46 H. pylori patients with LIT and HIT, and 23 H. pylori patients with LIT and FM.

Abbreviations:

FM, Fructose malabsorption; H.pylori, Helicobacter pylori; HIT, histamine intolerance; H₂, hydrogen; LIT, lactose intolerance; ppm, parts per million