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Early-Life Hygiene-...
Early-Life Hygiene-Related Factors and Risk of Inflammatory Bowel Disease: A Scandinavian Birth Cohort Study
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- Guo, Annie (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för pediatrik,Institute of Clinical Sciences, Department of Pediatrics
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- Östensson, Malin, 1984 (author)
- Gothenburg University,Göteborgs universitet,Core Facilities, Bioinformatics,Core Facilities, Bioinformatics
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- Stordal, Ketil (author)
- Univ Oslo, Norway; Oslo Univ Hosp, Norway
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- Ludvigsson, Johnny (author)
- Linköpings universitet,Avdelningen för barns och kvinnors hälsa,Medicinska fakulteten,Region Östergötland, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus
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- Mårild, Karl, 1982 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för pediatrik,Institute of Clinical Sciences, Department of Pediatrics
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Inflammatory Bowel Diseases. - : OXFORD UNIV PRESS INC. - 1078-0998 .- 1536-4844.
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Background We aimed to investigate whether early-life hygiene-related factors influenced the risk of inflammatory bowel disease (IBD) in a Scandinavian population and test the associations consistency across cohorts.Methods This study followed 117 493 participants in the All Babies in Southeast Sweden study and the Norwegian Mother, Father, and Child Cohort Study. IBD diagnoses were defined by national registers. Comprehensive data on hygiene-related exposures, such as having pets, rural living, daycare attendance, and siblings, were retrieved from questionnaires administered from pregnancy until childs age of 36 months. A multivariable Cox regression model yielded adjusted hazard ratios (aHRs) for IBD accounting for socioeconomic status and perinatal factors. Cohort-specific estimates were pooled using a random-effects model.Results In over 2 024 299 person-years of follow-up 451 participants developed IBD. In pooled estimates children attending daycare up to 36 months of life vs not attending daycare were less likely to develop Crohns disease (aHR, 0.60; 95% confidence interval [CI], 0.37- 0.98). Children having 1 or more siblings had a modestly increased risk of IBD (aHR, 1.17; 95% CI, 0.96-1.42; aHR for each sibling, 1.12; 95% CI, 1.01-1.24). The other hygiene factors were not significantly linked to later IBD. In the Norwegian Mother, Father, and Child Cohort Study cohort, bed sharing was associated with an increased risk of IBD, most notably for ulcerative colitis (aHR, 1.67; 95% CI, 1.01-2.78).Conclusions In this birth cohort study from 2 high-income Scandinavian countries, some early-life hygiene-related exposures were associated with IBD risk. The generalizability of these results to countries of other socioeconomic level is unknown. Exposure to some hygiene factors during early childhood seems to be associated with the risk of later inflammatory bowel disease. The direction and magnitude of the associations need to be further studied before any clinical implications.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Gastroenterologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Gastroenterology and Hepatology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- Inflammatory bowel disease; hygiene factors; epidemiology; early life
Publication and Content Type
- ref (subject category)
- art (subject category)
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