Exploring small intestinal bacterial overgrowth in functional upper gastrointestinal disorder: A comprehensive case-control study

Table 2 Hydrogen breath test in case and control groups, n (%)

Group	Positive H2 BT	Negative H2 BT	OR (95%CI)
Case group (n = 59)	35 (59)	24 (41)	5.38 (2.41-12.02)
Control group (n = 61)	13 (21)	48 (79)

H₂: Hydrogen; BT: Breath test; OR: Odds ratio; CI: Confidence interval.