Volume 65, Issue 5 pp. 551-554
Original Article: Gastroenterology: Inflammatory Bowel Disease

Incidence of Low Seroimmunity to Hepatitis B Virus in Children With Inflammatory Bowel Disease

Abhishek Watts

Corresponding Author

Abhishek Watts

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

Address correspondence and reprint requests to Abhishek Watts, MD, 705 Riley Hospital Drive, ROC 4210, Indianapolis, IN 46202 (e-mail: [email protected]).Search for more papers by this author
William E. Bennett

William E. Bennett

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

Section of Pediatric and Adolescent Comparative Effectiveness Research, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Jean P. Molleston

Jean P. Molleston

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Sandeep K. Gupta

Sandeep K. Gupta

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Joseph M. Croffie

Joseph M. Croffie

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Shamaila Waseem

Shamaila Waseem

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Brian A. McFerron

Brian A. McFerron

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Steven J. Steiner

Steven J. Steiner

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Sanjay Kumar

Sanjay Kumar

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Charles P. Vanderpool

Charles P. Vanderpool

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Emily C. Hon

Emily C. Hon

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Molly A. Bozic

Molly A. Bozic

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Girish C. Subbarao

Girish C. Subbarao

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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Marian D. Pfefferkorn

Marian D. Pfefferkorn

Section of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, IN

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First published: 01 November 2017
Citations: 13

The authors report no conflicts of interest.

ABSTRACT

Objectives:

Patients with inflammatory bowel disease (IBD) often receive immunosuppressive therapy, which may make them vulnerable to infections such as hepatitis B. We hypothesized that hepatitis B virus titers are low in the vaccinated pediatric population with IBD. The aims of our study were to identify the incidence of lower titers of hepatitis B surface antibody (HBsAb) and determine which patient factors may be associated with lower HBsAb titers.

Methods:

Patients with diagnosis of IBD, ages 5 to 18 years, were prospectively enrolled. Patients were confirmed to have had a full series of hepatitis B vaccination. Quantitative serum HBsAb titers were measured and logistic regression analysis with independent variables of age, sex, race, disease phenotype, surgery, medications and a dependent variable of adequate HBsAb titers (> 10 mIU/mL) was performed.

Results:

Of the 116 patients enrolled, 57 were boys and 59 were girls. 75 patients had a diagnosis of Crohn disease; 32 had a diagnosis of ulcerative colitis; and 9 patients had been diagnosed as having indeterminate colitis. At the time of the study, 15 patients were taking corticosteroid, 66 on an immunomodulator, and 53 on a biologic. Sixty percent of patients in the 5- to 10-year age group had protective titers versus 22% to 27% in the older groups, P = 0.04. Only 28% of the 116 patients had HBsAb titers of >10m IU/mL. Twenty percent of the patients taking corticosteroids, 27% taking immunomodulators, and 24% taking biologics were found to be seroimmune.

Conclusions:

Nearly two-thirds of pediatric patients with IBD have low titers against hepatitis B virus. Titers were highest in the younger patients. No patient-specific variable, such as the use of immunosuppressants, appeared to influence these low titers.

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