Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren
<p>Abstract</p> <p>Background</p> <p>Recent findings suggest that exposure to outdoor air pollutants may increase the risk of allergic rhinitis. The results of these studies are inconsistent, but warrant further attention. The objective of the study was to assess the ef...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2006-02-01
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| Series: | Respiratory Research |
| Online Access: | http://respiratory-research.com/content/7/1/23 |
| _version_ | 1811257913277153280 |
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| author | Lee Yung-Ling Jaakkola Jouni JK Hwang Bing-Fang Lin Ying-Chu Leon Guo Yue-liang |
| author_facet | Lee Yung-Ling Jaakkola Jouni JK Hwang Bing-Fang Lin Ying-Chu Leon Guo Yue-liang |
| author_sort | Lee Yung-Ling |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Recent findings suggest that exposure to outdoor air pollutants may increase the risk of allergic rhinitis. The results of these studies are inconsistent, but warrant further attention. The objective of the study was to assess the effect of relation between exposure to urban air pollution and the prevalence allergic rhinitis among school children.</p> <p>Methods</p> <p>We conducted a nationwide cross-sectional study of 32,143 Taiwanese school children. We obtained routine air-pollution monitoring data for sulphur dioxide (SO<sub>2</sub>), nitrogen oxides (NOx), ozone (O<sub>3</sub>), carbon monoxide (CO), and particles with an aerodynamic diameter of 10 μm or less (PM<sub>10</sub>). A parent-administered questionnaire provided information on individual characteristics and indoor environments (response rate 92%). Municipal-level exposure was calculated using the mean of the 2000 monthly averages. The effect estimates were presented as odds ratios (ORs) per 10 ppb change for SO<sub>2</sub>, NOx, and O<sub>3</sub>, 100 ppb change for CO, and 10 μg/m<sup>3 </sup>change for PM<sub>10</sub>.</p> <p>Results</p> <p>In two-stage hierarchical model adjusting for confounding, the prevalence of allergic rhinitis was significantly associated with SO<sub>2 </sub>(adjusted odds ratio (OR) = 1.43, 95% confidence interval (CI): 1.25, 1.64), CO (aOR = 1.05, 95% CI: 1.04, 1.07), and NOx (aOR = 1.11, 95% CI: 1.08, 1.15). Contrary to our hypothesis, the prevalence of allergic rhinitis was weakly or not related to O<sub>3 </sub>(aOR = 1.05, 95% CI: 0.98, 1.12) and PM<sub>10 </sub>(aOR = 1.00, 95% CI: 0.99, 1.02).</p> <p>Conclusion</p> <p>Persistent exposure to NOx, CO, and SO<sub>2 </sub>may increase the prevalence of allergic rhinitis in children.</p> |
| first_indexed | 2024-04-12T18:05:59Z |
| format | Article |
| id | doaj.art-1c5850a8d9ef40d4be714099f5b837ec |
| institution | Directory Open Access Journal |
| issn | 1465-9921 |
| language | English |
| last_indexed | 2024-04-12T18:05:59Z |
| publishDate | 2006-02-01 |
| publisher | BMC |
| record_format | Article |
| series | Respiratory Research |
| spelling | doaj.art-1c5850a8d9ef40d4be714099f5b837ec2022-12-22T03:22:00ZengBMCRespiratory Research1465-99212006-02-01712310.1186/1465-9921-7-23Relation between air pollution and allergic rhinitis in Taiwanese schoolchildrenLee Yung-LingJaakkola Jouni JKHwang Bing-FangLin Ying-ChuLeon Guo Yue-liang<p>Abstract</p> <p>Background</p> <p>Recent findings suggest that exposure to outdoor air pollutants may increase the risk of allergic rhinitis. The results of these studies are inconsistent, but warrant further attention. The objective of the study was to assess the effect of relation between exposure to urban air pollution and the prevalence allergic rhinitis among school children.</p> <p>Methods</p> <p>We conducted a nationwide cross-sectional study of 32,143 Taiwanese school children. We obtained routine air-pollution monitoring data for sulphur dioxide (SO<sub>2</sub>), nitrogen oxides (NOx), ozone (O<sub>3</sub>), carbon monoxide (CO), and particles with an aerodynamic diameter of 10 μm or less (PM<sub>10</sub>). A parent-administered questionnaire provided information on individual characteristics and indoor environments (response rate 92%). Municipal-level exposure was calculated using the mean of the 2000 monthly averages. The effect estimates were presented as odds ratios (ORs) per 10 ppb change for SO<sub>2</sub>, NOx, and O<sub>3</sub>, 100 ppb change for CO, and 10 μg/m<sup>3 </sup>change for PM<sub>10</sub>.</p> <p>Results</p> <p>In two-stage hierarchical model adjusting for confounding, the prevalence of allergic rhinitis was significantly associated with SO<sub>2 </sub>(adjusted odds ratio (OR) = 1.43, 95% confidence interval (CI): 1.25, 1.64), CO (aOR = 1.05, 95% CI: 1.04, 1.07), and NOx (aOR = 1.11, 95% CI: 1.08, 1.15). Contrary to our hypothesis, the prevalence of allergic rhinitis was weakly or not related to O<sub>3 </sub>(aOR = 1.05, 95% CI: 0.98, 1.12) and PM<sub>10 </sub>(aOR = 1.00, 95% CI: 0.99, 1.02).</p> <p>Conclusion</p> <p>Persistent exposure to NOx, CO, and SO<sub>2 </sub>may increase the prevalence of allergic rhinitis in children.</p>http://respiratory-research.com/content/7/1/23 |
| spellingShingle | Lee Yung-Ling Jaakkola Jouni JK Hwang Bing-Fang Lin Ying-Chu Leon Guo Yue-liang Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren Respiratory Research |
| title | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren |
| title_full | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren |
| title_fullStr | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren |
| title_full_unstemmed | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren |
| title_short | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren |
| title_sort | relation between air pollution and allergic rhinitis in taiwanese schoolchildren |
| url | http://respiratory-research.com/content/7/1/23 |
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