The diffusion capacity of capillary alveolar (DLCO) among workers exposed to silica dust at work
Main Article Content
Abstract
This descriptive study examined the changes in diffusing capacity for carbon monoxide (DLCO) among 796 workers who are directly exposed to silica at companies in Hai Duong province. The participants received chest x-rays to diagnose silicosis, medical assessments of lung function and had their DLCO measured. The rate of DLCO reduction was 3.1% (25/796). Older participants were more likely to have DLCO decline than their younger counterparts. (p > 0.05). The risk of DLCO decline increases increased with years of employment and were higher for those with silicosis, although the associations were not statistically significant (p > 0.05). Those with impaired respiratory function were 4.2 times more likely to have DLCO decline compared to those without impaired respiratory function (p < 0.05). There is a need for further study to investigate the indicators of reduced respiratory function due to exposure to silica dust in the workplace.
Article Details
Keywords
CO diffusion capacity, silica dust, silicosis.
References
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