AI Article Synopsis
- Recent research suggests that air pollution, particularly nitrogen dioxide (NO), poses a risk for preterm births across the general population, prompting an investigation into its effects specifically on IBD mothers.
- The study found that IBD mothers exposed to higher levels of NO, especially in the later stages of pregnancy, had a significantly increased risk of preterm birth compared to non-IBD mothers, highlighting their greater vulnerability to pollution.
Article Abstract
Adverse birth outcomes are more frequent among mothers with inflammatory bowel diseases (IBDs) than non-IBD mothers. In recent studies, air pollution, such as high concentrations of nitrogen dioxide (NO), is reckoned as a risk factor for preterm birth in the general population. In this study, we investigated whether IBD mothers are at higher risk of preterm birth when exposed to NO compared to non-IBD mothers. We used information from the Norwegian Mother, Father and Child Cohort Study (MoBa). The pregnancy cohort was linked to the Norwegian Medical Birth Registry and air-pollution exposure data available from a subset of the study cohort. The relevant outcome in this study was preterm birth. A total of 16,170 non-IBD and 92 IBD mothers were included in the study. The mean exposure of NO during the pregnancy was similar for IBD and non-IBD mothers, 13.7 (6.9) μg/m and 13.6 (4.2) μg/m, respectively.IBD mothers with higher exposure of NO in the second and third trimester were at significant risk of preterm birth compared to non-IBD mothers [OR = 1.28 (CI 95%: 1.04-1.59) and OR = 1.23 (95% CI: 1.06-1.43), respectively]. The mean NO exposure was significantly higher in IBD mothers with preterm birth than in IBD mothers who delivered at term, at 19.58 (1.57) μg/m and 12.89 (6.37) μg/m, respectively. NO exposure influenced the risk of preterm birth in IBD mothers. Higher risk of preterm birth in IBD was associated with higher exposure of NO, suggesting vulnerability of preterm birth in IBD when exposed to NO.
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| http://dx.doi.org/10.1080/00365521.2020.1726446 | DOI Listing |
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