title: Is inflammatory bowel disease more severe when it appears at younger ages?
authors.forename: Gerhard
authors.initials: G
authors.lastname: Rogler
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D017668:Age of Onset; D003093:Colitis, Ulcerative / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D003424:Crohn Disease / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D005260:Female; D006801:Humans; D015994:Incidence; D015212:Inflammatory Bowel Diseases / Q000175:diagnosis* / Q000453:epidemiology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome; D055815:Young Adult