title: Functional dyspepsia and irritable bowel syndrome in teenagers: Internet survey.
abstract: BACKGROUND
  Only a handful of studies have investigated children with functional dyspepsia (FD) and irritable bowel syndrome (IBS) classified according to the Rome III criteria, and limited information is available on the lifestyle of affected patients.
  
  
  METHODS
  We conducted an Internet questionnaire survey of 2060 parents among the general public in Japan who lived with their children aged 10-15, who were screened for FD and IBS.
  
  
  RESULTS
  The prevalence of FD and IBS was 2.8% and 6.1%, respectively, and 1.4% of the subjects met the criteria for both FD and IBS. The lifestyles of 155 subjects who met the criteria for FD, IBS, or both were compared with those of 1745 control subjects. In comparison with the controls, a significantly higher percentage of subjects with FD, IBS, or both thought that their sleep was insufficient, ate meals irregularly, were susceptible to stress and to dizziness on standing, had difficulty in getting out of bed or felt sluggish in the morning, had a tendency to faint when standing, and had migraine/chronic headache.
  
  
  CONCLUSIONS
  Children with FD and IBS are susceptible to stress, have impaired sleep and eating habits, and have more frequent symptoms of comorbid orthostatic dysregulation and headache.
authors.affiliation: Department of Pediatrics, Jichi Medical University, Shimotsuke City, Tochigi, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Kumagai
authors.affiliation: Department of Pediatrics, Jichi Medical University, Shimotsuke City, Tochigi, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Yokoyama
authors.affiliation: Department of Pediatrics, Jichi Medical University, Shimotsuke City, Tochigi, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Imagawa
authors.affiliation: Department of Pediatrics, Jichi Medical University, Shimotsuke City, Tochigi, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Yamagata
mesh_terms: D000293:Adolescent; D002648:Child; D004415:Dyspepsia / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D020407:Internet; D043183:Irritable Bowel Syndrome / Q000175:diagnosis / Q000453:epidemiology*; D007564:Japan / Q000453:epidemiology; D008297:Male; D008403:Mass Screening / Q000379:methods*; D015995:Prevalence; D012307:Risk Factors; D011795:Surveys and Questionnaires
keywords: children; functional gastrointestinal disorder; headache; orthostatic dysregulation; prevalence