Available from: http://www.allacronyms.com/_Medical/PDN. MHRA 'PDN', All Acronyms, 17 January 2018, <http://www.allacronyms.com/_Medical/PDN> [accessed 17 January 2018] Bluebook All Acronyms, PDN (Jan. 17, 2018, 9:01 PM), available at http://www.allacronyms.com/_Medical/PDN. CSE All Acronyms. PDN [Internet]; January 17, 2018 [cited 2018 JAN 17]. Available from: http://www.allacronyms.com/_Medical/PDN.
Ethnicity â Although Crohnâs disease can affect any ethnic group, Caucasians and people of Eastern European (Ashkenazi) Jewish descent have the highest risk. American Jewish people of European descent are four to five times more likely to develop IBD than the general population.
IBD has long been thought of as a disease predominantly affecting whites; the prevalence rate (the number of people with a disease at a given time) among whites is 149 per 100,000. However, there has been a steady increase in reported cases of both Crohn's disease and ulcerative colitis among African Americans.