{"title":"Effect of exposure to ambient air volatile organic compounds on the severity of atopic dermatitis and lag-day effect.","authors":"Hui-Wen Tseng","doi":"10.12932/AP-101124-1967","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Previous studies reported positive associations between exposure to air volatile organic compounds (VOCs) and daily visits for atopic dermatitis (AD).</p><p><strong>Objective: </strong>This population-based study investigated associations between air VOCs exposure and daily hospitals visits for AD, severity subgroup (mild and severe), and lag-day effect in central-southern Taiwan.</p><p><strong>Methods: </strong>The dependent variable was AD with diagnostic codes (ICD-9-CM 691.8 and ICD-10-CM L20) retrieved from the Taiwan National Health Insurance Research Database from 2008/01/01 to 2018/12/31. Independent variables included one-day 75th-percentile value of each VOC (benzene, ethylbenzene, toluene, m-/p-xylene, o-xylene, 1,3,5-trimethylbenzene, 1,2,4-trimethylbenzene, isopentane, n-pentane, n-hexane, methylcyclohexane, and cyclohexane) and four meteorological conditions from the Taiwan Air Quality Monitoring Network Database. This was a case-crossover design with multivariable conditional logistic regression, and the adjusted odds ratios (AORs) were reported.</p><p><strong>Results: </strong>Concentrations of the 12 air VOCs significantly positively affected the total number of daily visits for AD (AOR = 1.02~1.69, P < 0.001) and subgroups of mild (AOR = 1.001~1.049, P < 0.001) and severe (AOR = 1.002~1.077, P < 0.001). The effect of air VOCs on the severe AD group was higher than that on the mild group. Values of the six VOCs on the 1st lag day (benzene: AOR = 1.16, 1,3,5-trimethylbenzene: AOR = 1.5, 1,2,4-trimethylbenzene: AOR = 1.13, isopentane: AOR = 1.07, n-pentane: AOR = 1.08, methylcyclohexane: AOR = 1.5, all P < 0.05) were significantly positively associated with the number of daily visits for AD.</p><p><strong>Conclusions: </strong>Exposure to the 12 air VOCs on the visit days increased the risks of daily visits for AD in total and severity subgroup. The effects of six certain VOCs on the 1st lag day were significant positive.</p>","PeriodicalId":8552,"journal":{"name":"Asian Pacific journal of allergy and immunology","volume":" ","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Pacific journal of allergy and immunology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.12932/AP-101124-1967","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ALLERGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Previous studies reported positive associations between exposure to air volatile organic compounds (VOCs) and daily visits for atopic dermatitis (AD).
Objective: This population-based study investigated associations between air VOCs exposure and daily hospitals visits for AD, severity subgroup (mild and severe), and lag-day effect in central-southern Taiwan.
Methods: The dependent variable was AD with diagnostic codes (ICD-9-CM 691.8 and ICD-10-CM L20) retrieved from the Taiwan National Health Insurance Research Database from 2008/01/01 to 2018/12/31. Independent variables included one-day 75th-percentile value of each VOC (benzene, ethylbenzene, toluene, m-/p-xylene, o-xylene, 1,3,5-trimethylbenzene, 1,2,4-trimethylbenzene, isopentane, n-pentane, n-hexane, methylcyclohexane, and cyclohexane) and four meteorological conditions from the Taiwan Air Quality Monitoring Network Database. This was a case-crossover design with multivariable conditional logistic regression, and the adjusted odds ratios (AORs) were reported.
Results: Concentrations of the 12 air VOCs significantly positively affected the total number of daily visits for AD (AOR = 1.02~1.69, P < 0.001) and subgroups of mild (AOR = 1.001~1.049, P < 0.001) and severe (AOR = 1.002~1.077, P < 0.001). The effect of air VOCs on the severe AD group was higher than that on the mild group. Values of the six VOCs on the 1st lag day (benzene: AOR = 1.16, 1,3,5-trimethylbenzene: AOR = 1.5, 1,2,4-trimethylbenzene: AOR = 1.13, isopentane: AOR = 1.07, n-pentane: AOR = 1.08, methylcyclohexane: AOR = 1.5, all P < 0.05) were significantly positively associated with the number of daily visits for AD.
Conclusions: Exposure to the 12 air VOCs on the visit days increased the risks of daily visits for AD in total and severity subgroup. The effects of six certain VOCs on the 1st lag day were significant positive.
期刊介绍:
The Asian Pacific Journal of Allergy and Immunology (APJAI) is an online open access journal with the recent impact factor (2018) 1.747
APJAI published 4 times per annum (March, June, September, December). Four issues constitute one volume.
APJAI publishes original research articles of basic science, clinical science and reviews on various aspects of allergy and immunology. This journal is an official journal of and published by the Allergy, Asthma and Immunology Association, Thailand.
The scopes include mechanism, pathogenesis, host-pathogen interaction, host-environment interaction, allergic diseases, immune-mediated diseases, epidemiology, diagnosis, treatment and prevention, immunotherapy, and vaccine. All papers are published in English and are refereed to international standards.