becoming more frequent ? coal miners in the United States : is silicosis Pneumoconiosis among underground bituminous
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چکیده
word count – 248 Text word count – 2469 The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the National Institutes for Occupational Safety and Health. OEM Online First, published on September 22, 2009 as 10.1136/oem.2009.047126 Copyright Article author (or their employer) 2009. Produced by BMJ Publishing Group Ltd under licence. on 1 October 2009 oem.bmj.com Downloaded from
منابع مشابه
Pneumoconiosis among underground bituminous coal miners in the United States: is silicosis becoming more frequent?
OBJECTIVES Epidemiological reports since 2000 have documented increased prevalence and rapid progression of pneumoconiosis among underground coal miners in the United States. To investigate a possible role of silica exposure in the increase, we examined chest x-rays (CXRs) for specific abnormalities (r-type small opacities) known to be associated with silicosis lung pathology. METHODS Undergr...
متن کاملTrends in pneumoconiosis mortality and morbidity for the United States, 1968–2005, and relationship with indicators of extent of exposure
This surveillance report examines trends in selected pneumoconioses in the U.S. for 1968–2005 and their relationship with past indicators of extent of exposure. Numbers of deaths with asbestosis, silicosis, and coal workers’ pneumoconiosis (CWP) were tabulated by time and age at death. Worker monitoring CWP prevalence data were tabulated by tenure group. Information on indicators of extent and ...
متن کاملCoal workers' pneumoconiosis and progressive massive fibrosis are increasingly more prevalent among workers in small underground coal mines in the United States.
OBJECTIVE To determine whether the prevalence of coal workers' pneumoconiosis (CWP) or progressive massive fibrosis (PMF) among United States underground miners is associated with mine size. METHODS We examined chest radiographs from 1970 to 2009 of working miners who participated in the National Coal Workers Health Surveillance Program for the presence of small and large opacities consistent...
متن کاملPrevalence of pneumoconiosis and its relationship to dust exposure in a cohort of U.S. bituminous coal miners and ex-miners.
Information on radiographic evidence of coal workers' pneumoconiosis (CWP) is presented for a group of 3,194 underground bituminous coal miners and ex-miners examined between 1985 and 1988. Prevalence of CWP was related to estimated cumulative dust exposure, age, and rank of coal. On the basis of these data, miners of medium to low rank coal, who work for 40 years at the current federal dust li...
متن کاملCoal workers’ pneumoconiosis prevalence disparity between Australia and the United States
Although rates of pneumoconiosis in coal miners have declined substantially in the United States since the passage of the Federal Coal Mine Health and Safety Act of 1969, new cases continue to occur, including cases of rapidly progressive disease. In contrast, Australia’s underground coal mining industry has reported few new cases of pneumoconiosis for more than 20 years. Mortality from coal wo...
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