OBJECTIVES: We conducted a large-scale Internet survey of 10,000 subjects across Japan to determine @entity1744 ( @entity8352 ) prevalence. (J-ROAD: Japanese research of abdominal symptoms for @entity8352 ) METHODS: An equal number of male and female subjects, aged at least 20 years, were surveyed by questionnaire. The prevalence of @entity8352 and its subtypes were determined using Rome III criteria, and the results were analyzed for gender- and age-related differences. @entity8352 prevalence was also determined using Rome II criteria for comparison with Rome III criteria results. RESULTS: @entity8352 prevalence based on Rome III criteria was 13.1%. @entity8352 with @entity294 ( @entity8352 -D) subtype accounted for 29% of these cases, @entity8352 with @entity1142 ( @entity8352 -C) subtype 24% of cases, and mixed @entity8352 ( @entity8352 ) subtype 47% of cases. @entity8352 -D was more common in @entity1 , while @entity8352 -C predominated in @entity1 . @entity8352 was most frequently associated with the 20-29 year age bracket, with prevalence decreasing with age. @entity8352 prevalence based on Rome II criteria was 9.8%. CONCLUSION: @entity8352 prevalence based on Rome III criteria was 13.1%. On the other hand, @entity8352 prevalence based on Rome II criteria was 9.8%. Diagnosis based on these updated criteria may uncover more @entity8352 cases than Rome II criteria.

Prevalence of XXXX in Japan: Internet survey using Rome III criteria.

@entity1 :: ('9606', 'Species') :: ['women', 'men'] @entity294 :: ('MESH:D003967', 'Disease') :: ['diarrhea'] @entity1142 :: ('MESH:D003248', 'Disease') :: ['constipation'] @entity1744 :: ('MESH:D043183', 'Disease') :: ['irritable bowel syndrome'] @entity8352 :: ('MESH:C566367', 'Disease') :: ['IBS-M', 'IBS']
@entity1744 :: (MESH:D043183,Disease) :: ['irritable bowel syndrome']
