Genki Usui1, Tomohiro Shinozaki2, Toyohisa Jinno3, Kazutoshi Fujibayashi4, Teppei Morikawa5, Toshiaki Gunji3, Nobuyuki Matsuhashi6. 1. Department of Diagnostic Pathology, NTT Medical Center Tokyo, 5-9-22 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan. gusui-tky@umin.ac.jp. 2. Department of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan. 3. Center for Preventive Medicine, NTT Medical Center Tokyo, Tokyo, Japan. 4. Department of General Medicine, Juntendo University Hospital, Tokyo, Japan. 5. Department of Diagnostic Pathology, NTT Medical Center Tokyo, 5-9-22 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan. 6. Department of Gastroenterology, NTT Medical Center Tokyo, Tokyo, Japan.
Abstract
BACKGROUND: Visceral abdominal obesity is associated with Barrett's esophagus (BE), especially long-segment BE (≥ 3 cm) (LSBE), in white individuals. However, the association between central obesity and LSBE has not been well investigated in Asia. The aim of this study was to investigate the association between central obesity and LSBE in the Japanese population. METHODS: A total of 38,298 healthy subjects who took medical surveys between April 2006 and November 2018 were enrolled. We investigated the association between LSBE and central obesity indices [visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and the VAT to SAT ratio (VAT/SAT)] using a multivariable logistic regression model. RESULTS: A total of 37,686 subjects were eligible for the analysis. LSBE rates in the middle and high VAT/SAT groups were higher than those in the low VAT/SAT group [odds ratio (OR) 1.70, 95% confidence interval (CI) 1.07-2.69 for middle vs low; OR 2.02, 95% CI 1.17-3.49 for high vs low). These associational trends between VAT/SAT and LSBE remained in subgroups with and without reflux esophagitis. From subgroup analyses by SAT, we found that the OR between VAT and LSBE is higher in the low SAT subgroup (OR 2.43, 95% CI 1.34-4.40 for middle vs low; OR 2.55, 95% CI 1.01-6.40 for high vs low); but not large or imprecise due to limited event numbers in the middle and high SAT subgroups. CONCLUSIONS: VAT was associated with LSBE, especially among subjects with low SAT accumulation, who are seemingly not obese. VAT/SAT was associated with LSBE regardless of the presence of reflux esophagitis in a Japanese population.
BACKGROUND:Visceral abdominal obesity is associated with Barrett's esophagus (BE), especially long-segment BE (≥ 3 cm) (LSBE), in white individuals. However, the association between central obesity and LSBE has not been well investigated in Asia. The aim of this study was to investigate the association between central obesity and LSBE in the Japanese population. METHODS: A total of 38,298 healthy subjects who took medical surveys between April 2006 and November 2018 were enrolled. We investigated the association between LSBE and central obesity indices [visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and the VAT to SAT ratio (VAT/SAT)] using a multivariable logistic regression model. RESULTS: A total of 37,686 subjects were eligible for the analysis. LSBE rates in the middle and high VAT/SAT groups were higher than those in the low VAT/SAT group [odds ratio (OR) 1.70, 95% confidence interval (CI) 1.07-2.69 for middle vs low; OR 2.02, 95% CI 1.17-3.49 for high vs low). These associational trends between VAT/SAT and LSBE remained in subgroups with and without reflux esophagitis. From subgroup analyses by SAT, we found that the OR between VAT and LSBE is higher in the low SAT subgroup (OR 2.43, 95% CI 1.34-4.40 for middle vs low; OR 2.55, 95% CI 1.01-6.40 for high vs low); but not large or imprecise due to limited event numbers in the middle and high SAT subgroups. CONCLUSIONS: VAT was associated with LSBE, especially among subjects with low SAT accumulation, who are seemingly not obese. VAT/SAT was associated with LSBE regardless of the presence of reflux esophagitis in a Japanese population.
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