Crohn's disease is found in all racial groups worldwide. However, historically, the highest prevalence rates have been reported in white populations, particularly those of North America and Europe, with significantly lower rates seen in black and Asian populations within these or any other foreign country [3]–[12].
What country has the highest rate of Crohn's disease?
Canada has the highest incidence of Crohn's in the world. There are also increased IBD-related hospitalization rates in northern states compared to southern states for both ulcerative colitis and Crohn's disease.
Why do Jewish people have Crohn's?
They found 10 variations of the NOD2 and LRRK2 exomes that are associated with increased risk for Crohn's and are more likely to occur among Ashkenazi Jews. The study suggests that this difference in genetics may predispose the Ashkenazi population to a higher risk of Crohn's disease compared to non-Jewish people.