Lactose Malabsorption Testing in Daily Clinical Practice: A Critical Retrospective Analysis and Comparison of the Hydrogen/Methane Breath Test and Genetic Test (C/T₋₁₃₉₁₀ Polymorphism) Results

Table 4

Lactose-dependent SIBO.

𝑛=20 (7.6%)	H2 breath test	CH4 breath test
𝑛=16 (6.1%)	+	−
𝑛=4 (1.5%)	−	+

SIBO: small intestinal bacterial overgrowth, +: >20 parts per million above baseline up to 60 minutes after lactose ingestion, −: negative.