Breath Hydrogen as a Biomarker for Glucose Malabsorption after Roux-en-Y Gastric Bypass Surgery

Table 2

Number of individuals after Roux-en-Y gastric bypass surgery with an early rise of breath hydrogen or methane (SIBO) or a late rise of breath hydrogen or methane (glucose malabsorption).

		Early rise in breath (30 minutes)
		No	Yes
Late rise in breath	No	12	0
(45 minutes)	Yes	5	46

SIBO: Small Intestinal Bacterial Overgrowth.
The potential association between glucose malabsorption (late rise) and SIBO (early rise) was evaluated using Fisher’s exact test: .