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. 2017 Mar 21;112(5):775–784. doi: 10.1038/ajg.2017.46

Table 3. Performance of breath tests.

Consensus statement Percentage of agreement Quality of evidence (GRADE)
1. We suggest that the correct dose of lactulose for breath testing is 10 g with or followed by one cup of water. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊙
2. We suggest that the correct dose of glucose for breath testing is 75 g mixed with or followed by one cup of water. Agree (88.9% agree, 11.1% uncertain, 0% disagree) ⊕⊕⊙⊙
3. We suggest that the correct dose of lactose for breath testing is 25 g mixed with or followed by one cup of water. Agree (88.9% agree, 0% uncertain, 11.1% disagree) ⊕⊕⊙⊙
4. We suggest that the correct dose of fructose for breathe testing is 25 g mixed with or followed by one cup of water. Agree (88.9% agree, 0% uncertain, 11.1% disagree) ⊕⊕⊕⊙
5. We suggest that fructose and lactose breath test should be performed for at least 3 hours. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊙
6. We suggest that the presence of bacterial overgrowth should be ruled out before performing lactose or fructose breath testing. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊙
7. We recommend that hydrogen, methane and carbon dioxide should all be measured simultaneously during breath testing. Agree (77.8% agree, 22.2% uncertain, 0% disagree) ⊕⊕⊕⊕