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.
Studies have shown that 5% to 20% of affected individuals have a first-degree relative (parent, child, or sibling) with one of the diseases. 6 Children of parents with IBD are at greater risk than the general population for developing IBD. 7 The risk is greater with Crohnâs disease than with ulcerative colitis.