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Document ID (ISN)73394
CIS number 99-1182
ISSN - Serial title 0271-3586 - American Journal of Industrial Medicine
Year 1999
Convention or series no.
Author(s) Wang X., Yu I.T.S., Wong T.W., Yano E.
Title Respiratory symptoms and pulmonary function in coal miners: Looking into the effects of simple pneumoconiosis
Bibliographic information Feb. 1999, Vol.35, No.2, p.124-131. 38 ref.
Abstract Pulmonary function was measured in 205 miners with simple coal workers' pneumonconiosis (CWP) and in 289 without X-ray evidence of pneumoconiosis. A questionnaire on occupational history and respiratory symptoms including breathlessness, chronic cough, and phlegm was administered. The presence or absence of emphysema on X-ray films was also evaluated. On average, the miners with CWP had lower values of pulmonary function and higher prevalences of respiratory symptoms and emphysema than did those without. The simple CWP was associated with increased risk of the respiratory symptoms after adjusting for age, smoking, and years underground. Even when the effects of emphysema and respiratory symptoms indicating chronic bronchitis were taken into consideration, the significant relationship between CWP and decrements in forced vital capacity and diffusing capacity remained. Findings are consistent with simple CWP being a contributor to significant decrements in pulmonary function, and to increased risk of respiratory symptoms. Topics: age-linked differences; chest radiography; China; chronic respiratory diseases; coal dust; coal mining; coalworkers pneumoconiosis; emphysema; epidemiologic study; length of exposure; pulmonary function; smoking; spirometry.
Descriptors (primary) pulmonary function; coalworkers pneumoconiosis; chronic respiratory diseases; coal mining
Descriptors (secondary) China; coal dust; smoking; emphysema; chest radiography; spirometry; age-linked differences; length of exposure; epidemiologic study
Document type D - Periodical articles
Country / State or ProvinceHong Kong; Japan
Subject(s) Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Industries and occupations
Browse category(ies) Diseases of the respiratory system (except for pneumoconiosis & similar)
Mining and quarrying
Pneumoconioses