Kenji TamuraWanida JinsartEiji YanoKanae KaritaDoungrutai BoudoungNational Institute for Environmental Studies of JapanChulalongkorn UniversityTeikyo University School of MedicineMahidol University2018-07-242018-07-242003-04-01Archives of Environmental Health. Vol.58, No.4 (2003), 201-207000398962-s2.0-0345566358https://repository.li.mahidol.ac.th/handle/20.500.14594/20852In this cross-sectional study, the authors examined the relationship between traffic-based air pollution and chronic, nonspecific respiratory symptoms among traffic policemen in Bangkok, Thailand. A total of 1,603 policemen who lived and worked in areas that had 3 different levels of airborne particulates were evaluated. The authors used a modified standardized questionnaire to identify nonspecific respiratory disease (NSRD) in participants. The prevalence of NSRD in heavily polluted, moderately polluted, and suburban areas was 13.0%, 10.9%, and 9.4%, respectively. Among nonsmokers, the age-adjusted prevalence of NSRD in the heavily polluted areas was significantly higher than in the suburban control area. Also among nonsmokers, the odds ratio for NSRD for each 10-μg/m3increase in ambient particulate matter was 1.11. The authors concluded that the increased prevalence of respiratory symptoms among traffic policemen in Bangkok was associated with urban traffic air pollution.Mahidol UniversityEnvironmental ScienceArticleSCOPUS10.3200/AEOH.58.4.201-207