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Table 1 Characteristics of the sample (n = 49)

From: Translation and validation of a Japanese version of the irritable bowel syndrome-quality of life measure (IBS-QOL-J)

   Male 22
   Female 27
Age (yrs, mean ± SD) 38 ±15
   Japanese 49
   Others 0
Marital status  
   Single living alone 10
   Single living with a partner 14
   Married 24
   Divorced 1
   8th grade or less 3
   Some high school 1
   High school graduate 19
   Some college or technical school 8
   College graduate 18
Diagnosis by Rome II criteria  
   Irritable bowel syndrome (IBS) 30
IBS subtypes of bowel habit  
IBS with constipation (IBS-C) 6
IBS with diarrhea (IBS-D) 14
Mixed or unspecified IBS 10
   Other functional bowel disorders (FBD) 19
Classification of symptom severity by IBSSI  
   Mild 15
   Moderate 22
   Severe 12
  1. IBSSI: IBS severity index. Data were expressed as number of subjects except for age.