期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 242, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2022.113835
关键词
Inflammatory bowel disease; Air pollution; Epidemiology
资金
- National Natural Science Founda-tion of China [82173607]
- Guangdong Basic and Applied Basic Research Foundation [2021A1515011684]
- Open Project of the Guangdong Provincial Key Laboratory of Tropical Disease Research [2020B1212060042]
- Guangzhou Science and Technology Project [202102080597]
- Humanities and Social Sciences Youth Fund of Ministry of Education [21YJC890030]
The study found that long-term exposure to various air pollutants was associated with the risk of incident ulcerative colitis but not Crohn's disease. Smoking status and sex appeared to modify the associations between some air pollutants and the risk of inflammatory bowel diseases.
Background: Epidemiological evidence regarding the associations between long-term exposure to air pollution and risk of incident inflammatory bowel disease (IBD) is scant. Objectives: We examined the associations of various specific air pollutants with the risk of incident ulcerative colitis and Crohn's disease, two subtypes of IBD, among middle and old aged adults in the UK. We also explored potential susceptible subgroups. Methods: We used data from the UK Biobank study. Information on air pollution, including PM2.5, PM2.5-10, PM10 as well as NO(2 )and NOx were estimated using the Land Use Regression model. Multivariable Cox proportional hazards models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). Results: After a median follow-up of 11.7 years, 1872 incident ulcerative colitis and 865 incident Crohn's disease cases were identified among 455,210 IBD-free participants. HRs (95% CIs) of ulcerative colitis associated with each 1 interquartile range (IQR) increase in PM2.5, PM2.5-10, PM10, NO2, and NOx were 1.06 (1.01, 1.12), 1.03 (0.99, 1.08), 1.09 (1.03, 1.16), 1.12 (1.07, 1.19), and 1.07 (1.02, 1.12), respectively. The associations between all the air pollutants and risk of Crohn's disease were null. Smoking status and sex appeared to respectively modify the associations between some air pollutants and risk of ulcerative colitis and Crohn's disease. Conclusion: Long-term exposure to various air pollutants was associated with the risk of incident ulcerative colitis but not Crohn's disease, highlighting the importance of developing environmental health strategy to reduce the burden of ulcerative colitis.
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