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Lung Function Profiles among Individuals with Nonmalignant Asbestos-related Disorders
박은기,Deborah H. Yates,Donald Wilson 한국산업안전보건공단 산업안전보건연구원 2014 Safety and health at work Vol.5 No.4
Background: Inhalation of asbestos fibers can lead to adverse health effects on the lungs. This studydescribes lung function profiles among individuals with nonmalignant asbestos-related disorders (ARDs). Methods: The study population was from the Workers’ Compensation (Dust Diseases) Board of NewSouth Wales, Sydney, Australia. Lung function measurements were conducted in males with asbestosis(n ¼ 26), diffuse pleural thickening (DPT; n ¼ 129), asbestosis and DPT (n ¼ 14), pleural plaques only(n ¼ 160) and also apparently healthy individuals with a history of asbestos exposure (n ¼ 248). Standardizedspirometric and single-breath diffusing capacity for carbon monoxide (DLCO) measurementswere used. Results: Mean age [standard deviation (SD)] was 66.7 (10.3) years for all participants. Current andex-smokers among all participants comprised about 9.0% and 54.8%, respectively. Median pack-years (SD)of smoking for ex- and current-smokers were 22.7 (19.9). Overall 222 participants (38.6%) and 139participants (24.2%) had forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC)measurements < 80% predicted, and 217 participants (37.7%) had FEV1/FVC results < 70%. A total of 249individuals (43.8%) had DLco values < 80% predicted and only 75 (13.2%) had DLco/VA results < 80%predicted. A total of 147 participants (25.6%) had peak expiratory flow (PEF) measurements < 80%predicted. The presence of ARDs lowered the lung function measurements compared to those of healthyindividuals exposed to asbestos. Conclusion: Lung function measurement differs in individuals with different ARDs. Monitoring of lung