title: Occupational exposure and chronic respiratory symptoms--a population based study in Vietnam.
abstract: In order to investigate the relationship between occupational exposure to dust/chemicals (toxic gases/fumes) and chronic respiratory symptoms in Vietnam, the questionnaire standardized by the American Thoracic Society was applied to 368 subjects living in Ha Thai district of Vietnam. According to the results of multiple logistic regression analyses, the odds ratios of chronic respiratory symptoms by occupational exposure are over unity, except for the relationship between chronic cough and occupational exposure to chemicals. Especially for chronic breathlessness, significantly higher odds ratios are observed among people with a history of occupational exposure to dust or chemicals: 2.925 (95% CI: 1.130-7.574) for dust, and 3.721 (95% CI: 1.412-9.803) for chemicals. As for the interaction between occupational exposure to dust and cigarette smoking, it is considered that occupational exposure leads to an increase in chronic respiratory symptoms independent of the effects of cigarette smoking.
authors.affiliation: Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Kitakyushu, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Matsuda
authors.forename: A L
authors.initials: AL
authors.lastname: Nguyen
authors.forename: H
authors.initials: H
authors.lastname: Jonai
authors.forename: V H
authors.initials: VH
authors.lastname: Nguyen
authors.forename: H T
authors.initials: HT
authors.lastname: Dinh
authors.forename: V T
authors.initials: VT
authors.lastname: Le
authors.forename: T C
authors.initials: TC
authors.lastname: Nguyen
authors.forename: M T
authors.initials: MT
authors.lastname: Hoang
authors.forename: H D
authors.initials: HD
authors.lastname: Phung
authors.forename: D T
authors.initials: DT
authors.lastname: Dang
mesh_terms: D000328:Adult; D000395:Air Pollutants, Occupational / Q000009:adverse effects*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology; D016273:Occupational Exposure / Q000009:adverse effects; D015995:Prevalence; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000453:epidemiology* / Q000209:etiology; D012907:Smoking / Q000009:adverse effects; D011795:Surveys and Questionnaires; D014744:Vietnam / Q000453:epidemiology
chemical_list: D000395:Air Pollutants, Occupational