Diabetes and the risk of infections with immunomodulator therapy in inflammatory bowel diseases

Citation:

Ananthakrishnan AN, Cagan A, Cai T, Gainer VS, Shaw SY, Churchill S, Karlson EW, Murphy SN, Kohane I, Liao KP. Diabetes and the risk of infections with immunomodulator therapy in inflammatory bowel diseases. Aliment Pharmacol Ther. 2015;41 :1141-8.

Date Published:

Jun

Abstract:

BACKGROUND: Infections are an important concern in patients using immunosuppressive therapy for their inflammatory bowel disease (IBD). Diabetes affects nearly 10% of Americans. Whether it confers an additional risk with immunosuppression in IBD has not been examined previously. AIM: To examine the association between diabetes and infections with immunomodulator use in IBD METHODS: Using a validated, multi-institutional IBD cohort, we identified all patients who received at least one prescription for immunomodulators (thiopurines, methotrexate). Our primary outcome was infection within 1 year of the prescription of the immunomodulator. Multivariable logistic regression adjusting for relevant confounders was used to estimate the independent association with diabetes. RESULTS: Our study included 2766 patients receiving at least one prescription for immunomodulators among whom 210 (8%) developed an infection within 1 year. Patients who developed an infection were likely to be older, have more comorbidities, more likely to have received a prescription for steroids but similar in initiation of anti-TNF therapy within that year. Only 8% of those without an infection had diabetes compared to 19% of those who developed an infection within 1 year [odds ratio (OR) 2.74, 95% confidence interval (CI) 1.88-3.98, P < 0.001]. On multivariate analysis, diabetes was independently associated with a nearly two-fold increase in risk of infections (OR: 1.80, 95% CI: 1.20-2.68). There was no increase in risk of infections with addition of anti-TNF therapy (OR: 1.14, 95% CI: 0.80-1.63). CONCLUSION: Diabetes is an independent risk factor for infection in IBD patients using immunomodulator therapy.

Notes:

Ananthakrishnan, A NCagan, ACai, TGainer, V SShaw, S YChurchill, SKarlson, E WMurphy, S NKohane, ILiao, K PengK08 AR060257/AR/NIAMS NIH HHS/K23 DK097142/DK/NIDDK NIH HHS/K23DK097142/DK/NIDDK NIH HHS/K24 AR052403/AR/NIAMS NIH HHS/P60AR047782/AR/NIAMS NIH HHS/R01 AR049880/AR/NIAMS NIH HHS/U54-LM008748/LM/NLM NIH HHS/Research Support, N.I.H., ExtramuralEngland2015/04/14 06:00Aliment Pharmacol Ther. 2015 Jun;41(11):1141-8. doi: 10.1111/apt.13195. Epub 2015 Apr 13.