Additional Supporting Information may be found in the online version of this article.

IBD_21689_sm_suppinfotables.doc65KSupporting Table I: Disease Location at Diagnosis Supporting Table II: Disease Activity and Growth Following Diagnosis Supporting Table III: Disease Activity at Time of Blood Sampling Supporting Table IV: Medication Exposures at Time of Blood Sampling Supporting Table V: Determinants of Small Bowel Location Supporting Table VI: Determinants of Weight Z Score

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