Obesity is associated with decreased risk of microscopic colitis in women  

作　　者：Robert S Sandler Temitope O Keku John T Woosley Dale P Sandler Joseph A Galanko Anne F Peery 

机构地区：[1]Department of Medicine,University of North Carolina,Chapel Hill,NC 27514-7555,United States [2]Department of Medicine,University of North Carolina,Chapel Hill,NC 27514-7555,United States Department of Pathology,University of North Carolina,Chapel Hill,NC 27514,United States [3]Department of Health and Human Services,National Institute of Environmental Health Sciences,Durham,NC 27709,United States

出　　处：《World Journal of Gastroenterology》2022年第2期230-241,共12页世界胃肠病学杂志（英文版）

摘　　要：BACKGROUND Microscopic colitis is a leading cause of diarrhea in the older adults.There is limited information about risk factors.We hypothesized that obesity would be associated with microscopic colitis.AIM To examine the association between obesity and microscopic colitis in men and women undergoing colonoscopy.METHODS We conducted a case-control study at the University of North Carolina Hospitals.We identified and enrolled men and women referred for elective,outpatient colonoscopy for chronic diarrhea.We excluded patients with a past diagnosis of Crohn’s disease or ulcerative colitis.A research pathologist reviewed biopsies on every patient and classified them as microscopic colitis cases or non-microscopic colitis controls.Patients provided information on body weight,height and exposure to medications via structured interviews or Internet based forms.The analysis included 110 patients with microscopic colitis(cases)and 252 nonmicroscopic colitis controls.Multivariable analyses were performed using logistic regression to estimate odds ratios and 95%confidence intervals.RESULTS Cases were older and more likely than controls to be white race.Study subjects were well educated,but cases were better educated than controls.Cases with microscopic colitis had lower body mass index than controls and reported more weight loss after the onset of diarrhea.Compared to patients who were normal or under-weight,obese(BMI>30 kg/m2)patients were substantially less likely to have microscopic colitis after adjusting for age and education,adjusted OR(aOR)0.35,95%confidence interval(CI)0.18-0.66).When stratified by sex,the association was limited to obese women,aOR 0.21,95%CI:0.10-0.45.Patients with microscopic colitis were more likely to report weight loss after the onset of diarrhea.After stratifying by weight loss,there remained a strong inverse association between obesity and microscopic colitis,aOR 0.33,95%CI:0.10-1.11 among the patients who did not lose weight.Ever use of birth control pills was associated with lower risk o

关 键 词：COLITIS Microscopic/epidemiology Humans Diarrhea/epidemiology OBESITY 

分 类 号：R574.62[医药卫生—消化系统]