Factors associated with the development of progressive massive fibrosis in British coalminers: a case-control study.

@article{Maclaren1989FactorsAW,
  title={Factors associated with the development of progressive massive fibrosis in British coalminers: a case-control study.},
  author={William M Maclaren and J Fintan Hurley and H Royer Collins and Alex J. Cowie},
  journal={British journal of industrial medicine},
  year={1989},
  volume={46 9},
  pages={597-607}
}
Possible associations between the incidence of progressive massive fibrosis (PMF) over periods of average length 11 years during 1963-80 and a range of explanatory variables, both environmental and medical, were examined in a study group of 4772 miners and ex-miners using case-control methods. Cases were members of the study group who developed PMF during the study period; controls were men who remained free of the disease. Cases and controls were matched on cumulative dust exposure to the… CONTINUE READING