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Group definitions and urea breath test (UBT) results using the delta-over-baseline at 20 minutes (DOB20) ≥ 2.4 as the breakpoint for UBT positivity.
| Patients | Infection | DOB20 < 2.4 (% within group) |
DOB20 ≥ 2.4 (% within group) |
|---|---|---|---|
| Group 1 | TB+/HP+ | 0 | 14 (100%) |
| Group 2 | TB+/HP− | 6 (30%) | 14 (70%) |
| Group 3 | TB−/HP+ | 0 | 10 (100%) |
| Group 4 | TB−/HP− | 4 (11%) | 32 (89%) |
