BACKGROUND: The aim of this study is to determine the sonographic prevalence of gallstone disease in out-patients. METHODS: From July 2001 to March 2002, five hundred patients who underwent an ultra-sonografic exam for non-biliary disease were evaluated. There were 250 male and 250 female with age range from 19 to 72 years old. RESULTS: The prevalence of cholelitiasis or patients who had been underwent to cholecystectomy due to cholelithiasis was 18.4%. Gallstones prevalence increased with age (sixty years old or over), female sex, more than four pregnancies and body mass index (BMI) over 30. CONCLUSION: The prevalence of gallstones increased in patients with risk factors.
Cholelithiasis; Outpatients; Ultrasonics; Epidemiology
