Abstract
BackgroundAs a chronic systemic inflammation may be associated with an increased risk of vascular events, the aim of the present study was to assess the incidence of stroke and transient ischemic attack (TIA) in patients with inflammatory bowel disease over a period of 15 years. MethodsThis cohort study included patients for whom the initial diagnosis of an inflammatory bowel disease (IBD) (Crohn's disease: CD and ulcerative colitis: UC) was documented anonymously between 2000 and 2015 in 1,262 general practices in Germany. IBD patients were matched to patients without IBD using propensity scores based on age, sex, physician, co-diagnoses and co-therapies. Cox regression models were used to study the incidence of stroke and TIA as a function of CD and UC. ResultsEach of the matched groups included 11,947 participants. In the IBD group, 43.5% had CD and 56.5% UC respectively. Higher incidences of both stroke and TIA were detected for IBD (stroke: 279.0 versus 222.6 cases per 100,000 patient years, HR 1.30, p=0.011; TIA: 203.1 versus 141.1 cases per 100,000 patient years, HR 1.42, p=0.006). Stroke and TIA incidences (cases per 100,000 patient years) were higher than in controls (stroke: 314.7 versus 204.5, HR: 1.50, p=0.013; TIA: 183.8 versus 95.3, HR: 1.93, p=0.004) in CD patients only. No relevant differences in incidences were found for patients with UC. ConclusionWhile CD turned out to be a relevant precondition for stroke or TIA, this was not the case for UC.
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