Journal
NEUROGASTROENTEROLOGY AND MOTILITY
Volume 30, Issue 11, Pages -Publisher
WILEY
DOI: 10.1111/nmo.13436
Keywords
early life; etiology; FGID; functional abdominal pain; IBS
Funding
- Samariten Foundation, Sweden
- Stockholms Lans Landsting
- Ishizu Matsumurai's donation, Sweden
- Jane and Dan Olsson Foundation, Sweden
- Kempe Carlgrenska Foundation, Sweden
- Mjolkdroppen Foundation, Sweden
- Majblomman Foundation, Sweden
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Background The etiology of irritable bowel syndrome (IBS) is poorly understood. Animal and human data suggest that early life stress may induce long-term changes in the nociceptive circuitry, but conclusive studies are lacking. MethodsKey ResultsWe identified all Swedish children born between 1973 and 1992 in the Swedish Medical Birth Register. We had access to all diagnostic codes for specialized (nonprimary care) outpatient visits 2001-2009 (the National Patient Register) and identified individuals who were diagnosed with IBS (ICD-10 code: K58) after 18years of age. We compared incidence of IBS in individuals with and without pre- and perinatal stress using multivariable logistic regression. 2056430 children were included in the study. After turning 18years, 14382 of them were diagnosed with IBS in specialized outpatient care. Neither high, nor low birth weight was a risk factor for IBS in young adults. Preterm birth was associated with lower occurrence of IBS (adjusted OR 0.82 [0.75-0.90]) and vaginal instrumental delivery and Cesarean delivery were associated with slightly increased odds of IBS (adjusted OR 1.14 [1.06-1.24] and 1.09 [1.03-1.16] respectively). Neonatal distress and respiratory distress were not associated with future IBS. Female gender was by far the strongest risk factor for IBS in young adults (adjusted OR 3.48 [3.34-3.63]). Conclusions & InferencesIn this large population-based study, we found that mode of delivery was associated with an increased risk for IBS in young adulthood, while other proxies for pre- and perinatal stress were not. Female gender remains the most important risk factor for IBS.
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