“…8 In the Dutch IBDSL cohort, the incidence of CD and UC rose from 5.84 and 11.67, respectively, per 100,000 in 1991 to 17.49 and 21.47 in 2010, corresponding to an average annual percentage change (AAPC) of +5.97% and + 3.79%. 9 Within Europe, the incidence of IBD is characterized by a north-south and an east-west gradient, where the incidence of CD was 6.3 per 100,000 in Northern Europe in comparison to only 3.6 per 100,000 in Southern Europe, and the incidence of UC in Northern and Southern Europe was 11.4 and 8.0 per 100,000, respectively. 10 Finally, during the last decade, a significant rise in IBD has been observed in Eastern Europe.…”