Epidemiology of Inflammatory Bowel Disease

Characteristics and Trends in the Incidence of Inflammatory Bowel Disease in Korean Children: A Single-Center Experience

“…The incidence of IBD is higher in the northern part of the world than in the southern, and is greater among Caucasians than in other races [1]. However, the prevalence of IBD in Asia appears to be increasing in regions previously considered to be low-incidence areas [2].…”

GENDER-RELATED DIFFERENCES IN CLINICAL COURSE OF CROHN’S DISEASE IN AN ASIAN POPULATION: a retrospective cohort review

“…Information regarding gender-related differences in CD is relatively scarce and conflicting. Firstly, the majority of studies from the West have shown an relatively equal gender distribution for CD, with slightly preferentially affecting women as the overall female incidence rate appeared to be about 1.5 times higher than in men (7,19,20,28,33,37,40) . In contrast, most studies in Asia have demonstrated a male predominance for CD (28) .…”

Diagnosing Crohn's Disease: An Economic Analysis Comparing Wireless Capsule Endoscopy with Traditional Diagnostic Procedures

“…1 CD involves a transmural inflammation of the bowel wall and is characterized as discontinuous areas of inflammation, ulceration, scarring and fistualization throughout the GI tract, though primarily in the ileum, ileocecal region, and colon. 2,3 Patients with CD can generally be categorized based on the location of the disease: small bowel alone (30%-35% of cases), small and large bowel (45%-50% of cases) or colon alone (20% of cases).…”

“…6 Although estimates of CD incidence vary across studies, all studies point to a substantial increase in cases of the disease over the past 30 years. 1 Factors contributing to this increase are believed to include heightened provider and consumer awareness of Crohn's Disease, improved diagnostic testing, and changes in diet and behavioral risk factors. While CD affects both sexes, it may be more predominant in women, with the percentage of female cases ranging from 48% to 66%.…”

“…5 Although CD can occur at any age, cases cluster within two distinct age ranges: 15-25, and 50-80. 1,7,8 The highest incidence of CD is seen in young adults, for whom chronic debilitating disease has broad societal implications 9 both in terms of lifetime economic burden of disease, and lost productivity.…”