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Hydrogen (H2) versus methane (CH4) results.
| H2 + | H2 − | Total | |
|---|---|---|---|
| CH4 + | 31 (14.8%) M: 3 I: 28 |
12 (5.7%) M: 6 I: 6 |
43 (20.6%) |
| CH4 − | 65 (31.1%) M: 13 I: 52 |
101 (48.3%) | 166 (79.4%) |
| Total | 96 (46.0%) | 113 (54.0%) | 209 |
Legend: M: malabsorption; I: intolerance; H2 positive: peak exceeded 20 parts per million (ppm) over the baseline; CH4 positive: peak > 10 ppm above baseline.
