부산대학교 도서관

Background : The number of adolescent IBS may be increasing in Japan. However, the prevalence and the characteristics of them are unclear because most of them don't consult medical care. The objective of this research was to know the characteristics of high school students with IBS in Japan. Methods : High school students(1,150 boys and 273 girls)(age : 16-18 y.o.) fulfilled self-reported IBS questionnaires, Generalized Self-Efficacy Scale(OSES) and SF-36. Results : One hundred and seven boys(9%) and 46 girls(17%) were diagnosed as IBS based on Rome II criteria. IBS students had lower scores in all SF-36 subscales and GSES than controls(boys : 495, girls : 61) and functional bowel disorder(FED) students(boys : 548, girls : 166) whose abdominal symptoms didn't satisfy IBS Rome II criteria. Over 80% of IBS students had frequent abdominal pain and complained loose/watery stool with abdominal pain or discomfort. Relief of abdominal symptoms with defecation was seen more frequently in boys(p<0.05). On the other hand, passing mucus(p<0.0001), abdominal fullness(p<0.01), anticipatory anxiety(p<0.05), limitations of daily activity(p<0.005), exaggeration of IBS symptoms under stress(p<0.0005), laxative use(p<0.0001) were seen more frequently in girls. Many IBS students complained that they could not go to school and/or somewhere they could not find rest rooms easily. IBS scores that reflect severity of IBS symptoms were also significantly higher in girls(p=0.001). There was no difference in scores of GSES between boys and girls. Conclusion : Prevalence of high school students IBS in Japan was similar to that of adult, but they had some different characteristics from adults.