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- Title
Ambient air pollutants increase the risk of immunoglobulin E–mediated allergic diseases: a systematic review and meta-analysis.
- Authors
Wang, Hua; Li, Xian-Bao; Chu, Xiu-Jie; Cao, Nv-Wei; Wu, Hong; Huang, Rong-Gui; Li, Bao-Zhu; Ye, Dong-Qing
- Abstract
Immunoglobulin E (IgE)–mediated allergic diseases, including eczema, atopic dermatitis (AD), and allergic rhinitis (AR), have increased prevalence in recent decades. Recent studies have proved that environmental pollution might have correlations with IgE-mediated allergic diseases, but existing research findings were controversial. Thus, we performed a comprehensive meta-analysis from published observational studies to evaluate the risk of long-term and short-term exposure to air pollutants on eczema, AD, and AR in the population (per 10-μg/m3 increase in PM2.5 and PM10; per 1-ppb increase in SO2, NO2, CO, and O3). PubMed, Embase, and Web of Science were searched to identify qualified literatures. The Cochran Q test was used to assess heterogeneity and quantified with the I2 statistic. Pooled effects and the 95% confidence intervals (CIs) were used to evaluate outcome effects. A total of 55 articles were included in the study. The results showed that long-term and short-term exposure to PM10 increased the risk of eczema (PM10, RRlong = 1.583, 95% CI: 1.328, 1.888; RRshort = 1.006, 95% CI: 1.003–1.008) and short-term exposure to NO2 (RRshort = 1.009, 95% CI: 1.008–1.011) was associated with eczema. Short-term exposure to SO2 (RRshort: 1.008, 95% CI: 1.001–1.015) was associated with the risk of AD. For AR, PM2.5 (RRlong = 1.058, 95% CI: 1.014–1.222) was harmful in the long term, and short-term exposure to PM10 (RRshort: 1.028, 95% CI: 1.008–1.049) and NO2 (RRshort: 1.018, 95% CI: 1.007–1.029) were risk factors. The findings indicated that exposure to air pollutants might increase the risk of IgE-mediated allergic diseases. Further studies are warranted to illustrate the potential mechanism for air pollutants and allergic diseases.
- Subjects
ALLERGIES; IMMUNOGLOBULIN E; AIR pollutants; ALLERGIC rhinitis; ATOPIC dermatitis; POLLUTION
- Publication
Environmental Science & Pollution Research, 2022, Vol 29, Issue 33, p49534
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-022-20447-z