P176 COMPLICATED CROHN’S DISEASE IS ASSOCIATED WITH PERIANAL INVOLVEMENT, IBD-ASSOCIATED SEROLOGIES, AND POLYGENIC RISK SCORES DERIVED FROM IBD-ASSOCIATED VARIANTS

In Crohn’s disease (CD), disease severity is categorized by the Montreal classification. More complicated (stricturing and/or penetrating) disease is associated with poor quality of life. Our aim was to identify clinical, serological, and genetic factors associated with complicated CD.