Richard L Mones
Aim: To determine the birth order of presentation of pediatric siblings with Inflammatory Bowel Disease (IBD).
Methods: We selected all siblings from our data base of pediatric patients with IBD and determined which sibling presented with IBD first and then second.
Results: In 16 pairs of siblings, the second born sib presented first in 69% of the time.
Conclusion: Antibiotic exposure, or other environmental factor(s) may be responsible for the distribution of presentation we found.
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