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Inflamm Bowel Dis. 2016 Sep;22(9):2229-37. doi: 10.1097/MIB.0000000000000899.

Hospitalizations for Acute Myocardial Infarction Are Decreased Among Patients with Inflammatory Bowel Disease Using a Nationwide Inpatient Database.

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*Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts; †Division of General Medicine and Primary Care, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts; and ‡Office for Diversity Inclusion and Community Partnership, Harvard Medical School, Boston, Massachusetts.



Questions remain regarding the true prevalence of cardiovascular events such as myocardial infarction (MI) among patients with inflammatory bowel disease (IBD). Using the Nationwide Inpatient Sample (NIS), we aimed to compare the proportion of hospitalizations for acute MI among patients with IBD with that of the general population.


This study used data from years 2000 to 2011 in Nationwide Inpatient Sample, the largest publicly available all-payer inpatient database in the United States. International Classification of Diseases, Ninth Revision, Clinical Modification discharge codes were used to identify adult patients with discharge diagnoses of IBD (ulcerative colitis or Crohn's disease), acute MI, and multiple comorbid risk factors for cardiovascular disease. The independent effect of a diagnosis of IBD on risk of acute MI was examined using a multivariable logistic regression model controlling for multiple confounders. Data were analyzed using SAS survey procedures and weighted to reflect national estimates.


We identified 567,438 hospitalizations among patients with IBD and 78,121,000 hospitalizations among the general population. Patients with IBD were less likely to be hospitalized for acute MI than patients in the general population (1.3% versus 3.1%, P < 0.001). In adjusted analyses, the odds of hospitalization for acute MI among patients with IBD were decreased when compared with the general population (odds ratio, 0.51; 95% confidence interval, 0.50-0.52).


Despite prior reports of a potentially increased risk of acute MI among patients with IBD, in a nationwide inpatient database, lower rates of acute MI were demonstrated in the IBD population when compared with the general population.

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