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Key clinical point: Modest conformation exists between subjective reporting of the Bristol Stool Form Scale (BSFS) and fecal consistency measured by stool water content in irritable bowel syndrome (IBS), warranting caution when using BSFS reporting for subtyping IBS.
Major finding: BSFS scores significantly correlated with stool water content (correlation coefficient [r] 0.36, P < .0001); however, 77% of stool samples referred as BSFS 1-2 had a water content of ≤68.5% and 52.0% of samples referred as BSFS 6-7 had a water content of ≥78%. Sensitivity and specificity for BSFS 1-2 were 32% and 94%, respectively, and those for BSFS 6-7 were 37% and 93%, respectively.
Study details: The data come from a subanalysis of a previous randomized three-way crossover trial including 110 participants with severe-to-moderate IBS who underwent 1-week provocation with fermentable oligosaccharides, disaccharides, monosaccharides, and polyols; gluten; or placebo.
Disclosures: This study was funded by Formas and the Swedish Research Council. The authors declared no conflicts of interest.
Source: Nordin E et al. Modest conformity between self-reporting of Bristol stool form and fecal consistency measured by stool water content in irritable bowel syndrome, a FODMAP and gluten trial. Am J Gastroenterol. 2022;117(10):1668-1674 (Aug 12). Doi: 10.14309/ajg.0000000000001942
Key clinical point: Modest conformation exists between subjective reporting of the Bristol Stool Form Scale (BSFS) and fecal consistency measured by stool water content in irritable bowel syndrome (IBS), warranting caution when using BSFS reporting for subtyping IBS.
Major finding: BSFS scores significantly correlated with stool water content (correlation coefficient [r] 0.36, P < .0001); however, 77% of stool samples referred as BSFS 1-2 had a water content of ≤68.5% and 52.0% of samples referred as BSFS 6-7 had a water content of ≥78%. Sensitivity and specificity for BSFS 1-2 were 32% and 94%, respectively, and those for BSFS 6-7 were 37% and 93%, respectively.
Study details: The data come from a subanalysis of a previous randomized three-way crossover trial including 110 participants with severe-to-moderate IBS who underwent 1-week provocation with fermentable oligosaccharides, disaccharides, monosaccharides, and polyols; gluten; or placebo.
Disclosures: This study was funded by Formas and the Swedish Research Council. The authors declared no conflicts of interest.
Source: Nordin E et al. Modest conformity between self-reporting of Bristol stool form and fecal consistency measured by stool water content in irritable bowel syndrome, a FODMAP and gluten trial. Am J Gastroenterol. 2022;117(10):1668-1674 (Aug 12). Doi: 10.14309/ajg.0000000000001942
Key clinical point: Modest conformation exists between subjective reporting of the Bristol Stool Form Scale (BSFS) and fecal consistency measured by stool water content in irritable bowel syndrome (IBS), warranting caution when using BSFS reporting for subtyping IBS.
Major finding: BSFS scores significantly correlated with stool water content (correlation coefficient [r] 0.36, P < .0001); however, 77% of stool samples referred as BSFS 1-2 had a water content of ≤68.5% and 52.0% of samples referred as BSFS 6-7 had a water content of ≥78%. Sensitivity and specificity for BSFS 1-2 were 32% and 94%, respectively, and those for BSFS 6-7 were 37% and 93%, respectively.
Study details: The data come from a subanalysis of a previous randomized three-way crossover trial including 110 participants with severe-to-moderate IBS who underwent 1-week provocation with fermentable oligosaccharides, disaccharides, monosaccharides, and polyols; gluten; or placebo.
Disclosures: This study was funded by Formas and the Swedish Research Council. The authors declared no conflicts of interest.
Source: Nordin E et al. Modest conformity between self-reporting of Bristol stool form and fecal consistency measured by stool water content in irritable bowel syndrome, a FODMAP and gluten trial. Am J Gastroenterol. 2022;117(10):1668-1674 (Aug 12). Doi: 10.14309/ajg.0000000000001942