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HSR&D Citation Abstracts

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Khan N, Trivedi C, Kavani H, Lewis J, Yang YX. Frequency of Herpes Zoster Vaccination Among Inflammatory Bowel Disease Patients. Inflammatory Bowel Diseases. 2019 Jan 10; 25(2):345-351.
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Abstract: Background: Inflammatory bowel disease (IBD) patients are at an increased risk of herpes zoster (HZ). Our aim was to determine the frequency of HZ vaccination and the factors associated with it among eligible IBD patients. Methods: We conducted a retrospective cohort study among IBD patients who were followed in the nationwide Veterans Affairs Healthcare system. Among this cohort, we identified patients who were the age of 60 years after the introduction of the vaccination. The outcome of interest was vaccination for HZ. For all patients, follow-up began on January 1, 2008, and ended at incident HZ diagnosis, HZ vaccination, death, June 30, 2016, or loss to follow-up, whichever was earlier. The exposure to different medication groups at any time after the onset of the study period was also evaluated, as were the demographic features. Results: We found that among 18,825 IBD patients who were eligible for vaccination, only 3946 (20.96%) patients were vaccinated at any time during their follow-up. Within the first 5 years of follow-up, 11.7% of the total eligible population was vaccinated. Furthermore, ulcerative colitis patients and Caucasians were more likely to get vaccinated, whereas patients ever exposed to steroids, thiopurines, or anti-tumor necrosis factor medications and those with older age and a higher Charlson comorbidity index were less likely to be vaccinated. Conclusions: The vaccination rates for HZ in a nationwide IBD cohort without insurance constraints were extremely low. Concerted efforts should be made to improve them, and HZV should be considered among the quality of care indicators.

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