Fat Mass by Bioelectrical Impedance Analysis is not Associated With Increased Risk of Barrett Esophagus
Year: 2013
Type: article
Study design: Observational Study
Abstract: GOAL: To evaluate whether the association between obesity and Barrett esophagus (BE) is due to total body fatness, abdominal obesity, or both. BACKGROUND: BE risk seems to be more strongly related to central obesity than total obesity. However, no studies have investigated the association between total obesity and BE using direct measures of total body fatness. STUDY: We conducted a case-control study among patients scheduled for elective esophagogastroduodenoscopy, and a sample of patients eligible for screening colonoscopy recruited from primary care clinics. BE cases were patients with specialized intestinal metaplasia, whereas controls had no endoscopic or histopathologic BE. All patients underwent a study esophagogastroduodenoscopy and had body measurements taken. Fat mass and fat-free mass were estimated from bioelectrical impedance analysis (BIA). We calculated odds ratios (OR) and 95% confidence intervals (95% CI) using multivariable logistic regression. RESULTS: There were 70 BE cases, 229 endoscopy controls, and 118 primary care controls. BMI and BIA-derived fat mass were highly correlated; however, we found no association between BMI, fat mass, and BE (vs. all controls: BMI, OR/1 SD=1.01; 95% CI, 0.76-1.34; fat mass, OR=1.02; 95% CI, 0.77-1.36). Waist-to-hip ratio was significantly associated with increased BE risk (vs. all controls: OR/1 SD=1.45; 95% CI, 1.03-2.04). We found similar results when we analyzed the control groups separately. CONCLUSION: Waist-to-hip ratio, but not fat mass or BMI, was associated with increased BE risk. This study provides strong evidence that BE is related to body size and composition through central adiposity and not through total body fatness.
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: green
Awards: Epidemiology and Outcomes of Digestive and Liver Diseases: A Mentoring Program, G4448182986, Obesity, H pylori and Risk of Barrett's Esophagus, G8730064331, Texas Medical Center Digestive Diseases Center, Baylor College of Medicine Cancer Center - Cancer Center Support Grant, Research Training in Gastroenterology
OpenAlex ID: W2013407994