Survey on the Prevalence and Risk Factors of Fatty Liver among 4219 People in Health Examination

Objective To investigate the prevalence and main risk factors of fatty liver among adults in Wenzhou area.Methods A cross-sectional survey was conducted.The people aged 18 and above who had a physical examination in the First Affiliated Hospital of Wenzhou Medical College in 2009 were taken as the subjects.During the survey,208 fatty liver subjects diagnosed by ultrasound or CT were randomly sampled as fatty liver group and 188 healthy people were selected as control group.Data analysis was performed by SPSS13.0 software.Results Of 4219 cases,878 fatty liver patients were detected(20.81%).The prevalence of fatty liver in male was significantly higher than that in female(χ2=248.2,P0.01).The prevalence increased with age.The proportions of overweight,obesity,central obesity,hypertension,high systolic pressure,high diastolic pressure,IFG,diabetes mellitus,hypertriglyceridemia,hypercholesterolemia,low HDL-C,high ALT,hyperuricemia,metabolism syndrome in fatty liver group are significantly higher than those in control group.Multivariate logistic regression analysis indicated that overweight,obesity,hypertriglyceridemia,hypertension,high ALT,waist/hip ratio(male≥0.9,female≥0.8) were risk factors for fatty liver,while coarse grain intake(≥3times/w),alcohol daily and regularity exercises were the protective factors for fatty liver.Conclusion The prevalence of fatty liver among the population carrying out health examination in Wenzhou area is high.Metabolic disorders such as obesity are closely associated with fatty liver.