[An epidemiologic study of functional bowel disorders in adolescents in China].

Objective: To explore the most common bowel frequency and the prevalence rates of functional bowel disorders among adolescents in China.

Methods: A questionnaire survey was conducted among 51,956 students from high and primary schools in 6 Chinese cities distributed in the whole China collected by stratified, randomized, cluster sampling to study the epidemiology of functional bowel disorders.

Results: (1) 88.