Associated factor of prevalence of asymptomatic gallstone

ABSTRACT

BACKGROUND: Because of improvement of economic state and eating habit changes in Korea, 60-70% of gallbladder stones are cholesterol stones. As ultrasonography was used increasingly, detection of asymptomatic gallstone were increased. There has been few studies about asymptomatic gallstone in Korea. So, this study was designed to obtain associated factor of prevalence of asymptomatic gallstone. METHODS: We screened adults over 20 years who were visited the health Promotion Center in a university hospital from May 1995 to May 1999. Subjects were defined as case group(584 subjects) who were diagnosed gallstone by abdominal ultrasonogaphy by radiologist. Control group(1153 subjects) were selected by random sampling from visitors of the Health Promotion Center. Every subjects were assessed with respect to gender, age, height, weight, fasting blood glucose, serum total cholesterol, high density lipoprotein-cholesterol, triglyceride. Social-Economic state, smoking were assessed by self-administered questionnaires. Associated factor of prevalence of asymptomatic gallstone were analyzed by Chi-square test and multiple logistic regression. RESULTS: Age, BMI(Body Mass Index), fasting blood glucose were associated with gallstone by Chi-square test(P40 years old) and were associated with BMI(>25 kg/m2), fasting blood glucose. CONCLUSION: Associated factors of prevalence of asymptomatic gallstone were increased by age(>40 years old) and were associated with BMI(>25 kg/m2), fasting blood glucose, and were not different from those in West countries. further studies will be needed about associated factors according to the composition of gallstone and developing from asymptomatic gallstone to asymptomatic gallstone.