The MISSCARE Survey was successfully translated from US English to Icelandic, using a stringent back-translation method. The Icelandic version tested reliable and valid. This study supports global use of the MISSCARE Survey.

Background: Functional dyspepsia (FD) is a common disorder, but information on its natural history is limited. Aim: To study the natural history of FD as assessed by 2 criteria over a 10-year period. Method: A population-based study conducted by mailing a questionnaire to the same age- and gender-stratified random sample of the Icelandic population aged 18–75 in 1996 and again in 2006. FD was estimated by the Functional Dyspepsia Score List and by dyspepsia subgroups categorized into 4 groups: (1) frequent upper pain, (2) meal-related, (3) nausea or vomiting, and (4) combinations of these groups. Results: FD was diagnosed in 13.9% of the subjects in the 1996 sample (11.3% male, 15.8% female) and 16.7% in 2006 (12.3% male, 20.2% female) with a significant difference between males and females in 2006. Dyspepsia subgroup criteria showed a higher prevalence than conventional FD criteria. The proportion of FD subjects in one of the dyspepsia subgroups was low. There was a significant relationship between FD and heartburn and irritable bowel syndrome. A high proportion of subjects who seek medical care have FD. Conclusion: FD was stable over the 10-year period, but there was turnover in symptoms and increased intensity and frequency of gastrointestinal pain. Dyspepsia subgroup criteria showed a higher prevalence than FD, which was more common in young subjects and females. FD poses a heavy burden on the health care system.

Background. Studies have shown that women are more likely to have irritable bowel syndrome (IBS) and more women seek healthcare because of IBS than men. Aim. We wanted to examine the natural history of IBS and dysmenorrhea in women over a 10-year period and to assess the change in IBS after menopause. Method. A population-based postal study. A questionnaire was mailed to the same age- and gender-stratified random sample of the Icelandic population aged 18–75 in 1996 and again in 2006. Results. 77% premenopausal women had dysmenorrhea in the year 1996 and 74% in 2006. 42% of women with dysmenorrhea had IBS according to Manning criteria in the year 2006 and 49% in 1996. 26% of women with dysmenorrhea had IBS according to Rome III 2006 and 11% in the year 1996. In 2006 30% women had severe or very severe dysmenorrhea pain severity. More women (27%) reported severe abdominal pain after menopause than before menopause 11%. Women without dysmenorrhea were twice more likely to remain asymptomatic than the women with dysmenorrhea. Women with dysmenorrhea were more likely to have stable symptoms and were twice more likely to have increased symptoms. Conclusion. Women with IBS are more likely to experience dysmenorrhea than women without IBS which seems to be a part of the symptomatology in most women with IBS. IBS symptom severity seems to increase after menopause.

Half of the patients with IBS who consulted a physician received a diagnosis. Awareness and knowledge of diagnostic criteria for IBS differ between SGs and GPs.

SUMMARY BackgroundThe irritable bowel syndrome (IBS) is a common disorder, but information on its natural history is limited.