Journal
JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION
Volume 48, Issue 2, Pages 181-185Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MPG.0b013e3181709530
Keywords
Celiac disease; Perinatal viral infection; Seasonality of birth month
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Background: Patients with autoimmune diseases, such as type 1 diabetes mellitus, atopic dermatitis, autoimmune thyroid diseases, and multiple sclerosis have a different seasonality of month of birth (MOB) from the general population. This study Was undertaken to determine the seasonality of MOB in children with celiac disease (CD), an autoimmune-mediated enteropathy. Patients and Methods: The medical records of 431 children with CD (239 girls, 192 boys) were included in the Study; 138 girls and 81 boys were under the age of 24 months. Data were analyzed by the cosinor method, which, in addition to statistical significance, provides parameters of rhythms. Statistical differences between groups were also analyzed by the chi(2) test. Results: Patients with CD showed different patterns from that in the general population, which peaks in September. Boys and girls with CD were found to have a different seasonality of MOB (P < 0.02). Girls whose CD was diagnosed before age 24 months (peak July-August) had a different seasonality of MOB from those whose CD was diagnosed after age 24 months (no rhythm; P < 0.005) and showed a different seasonality from boys whose-CD was diagnosed above 24 months (peak July P < 0.02). In addition, we found a different seasonality of MOB in children with a family history of CD compared with those with no family history (P < 0.001). Conclusions: Girls with the diagnosis of CD and patients of both sexes with a family history of CD have a different pattern of seasonality of birth from the general population. This is suggestive of a perinatal virus infection as a plausible candidate for the primary trigger. JPGN 48:181-185, 2009.
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