To explore whether the characteristics of coal mine dust that predispose to chronic airways obstruction are the same as those associated with pneumoconiosis, mortality from the two disease was compared in coal miners in 22 counties of England and Wales during 1979-80 and 1982-90. The proportional mortality ratios (PMRs) for coal workers' pneumoconiosis varied from 135 (95% confidence interval (...

Retrospective analysis of the results of serial ventilatory capacity tests (FEV 1-0), which had extended over an average period of almost 15 years, has been carried out in 215 miners and ex-miners who suffer with coalworkers' pneumoconiosis. All were unselected previously diagnosed cases who attend the Cardiff Pneumoconiosis Panel at regular intervals for re-assessment examinations. They consis...

The effect on lung function and radiographic indices of exposure to chrysotile asbestos was investigated by cross-sectional studies in two groups of men at Havelock Mine, Swaziland. The first group consisted of 214 employees and ex-employees, mean age 52, who had been employed for at least 10 years, and whose dust exposure ranged from minimal for surface workers to very heavy for those in the g...

Background: Pneumoconiosis occurs almost all in entire worldwide. had threatened cement workers. Serologic abnormalities found pneumoconiosis. Surfactant Protein D (SP-D) levels increased silica exposed may be useful biomarkers for early diagnosis of pneumoconiosis but it has not yet been studied Indonesia.Method: This is a cross-sectional study and was done by consecutive sampling. The total s...

In Colombia, coal miner pneumoconiosis is considered a public health problem due to its irreversibility, high cost on diagnosis, and lack of data related to its prevalence in the country. Therefore, a cross-sectional study was carried out in order to determine the prevalence of pneumoconiosis in underground coal mining workers in two regions of Colombia. The results showed a 35.9% prevalence of...

A preventable occupational disease, pneumoconiosis that is often widespread on to a very kind of quartz, carbon and metal dust exposed work place.The data for the prevalence of pneumoconiosis and respiratory findings among dental laboratory technician is insufficient. The aim of this study is to determine the prevalence of pneumoconiosis and respiratory findings among dental laboratory technici...

Radiological pneumoconiosis is common amongst coal-miners in County Durham, and in four collieries about 22% of men at work above and below ground had fairly well-marked lung changes of category 2 or more (McCallum and Browne, 1955). There are no reliable prevalence data for pneumoconiosis of coal-miners in the adjacent coalfield of Northumberland, but its mines are thought to produce little pn...