Effect of phenotype on health care costs in Crohn's disease: A European study using the Montreal classification.

Background: Crohn's disease (CD) is a chronic inflammation of the gastrointestinal tract associated with life-long high health care costs. We aimed to determine the effect of disease phenotype on cost.

Methods: Clinical and economic data of a community-based CD cohort with 10-year follow-up were analyzed retrospectively in relation to Montreal classification phenotypes.

Ulcerative colitis: patient characteristics may predict 10-yr disease recurrence in a European-wide population-based cohort.

Objectives: Cumulative 10-yr relapse rates in ulcerative colitis (UC) of 70% to almost 100% have been reported in regional studies. The aim of this study was to determine the relapse rate in UC in a European population-based cohort 10 yr after diagnosis and to identify factors that may influence the risk of relapse.

Methods: From 1991 to 1993, 771 patients with UC from seven European countries and Israel were prospectively included in a population-based inception cohort and followed for 10 yr.

Cost analysis and cost determinants in a European inflammatory bowel disease inception cohort with 10 years of follow-up evaluation.

Background & Aims: Economic analysis in chronic diseases is a prerequisite for planning a proper distribution of health care resources. We aimed to determine the cost of inflammatory bowel disease, a lifetime illness with considerable morbidity.

Methods: We studied 1321 patients from an inception cohort in 8 European countries and Israel over 10 years.