The incidence and progression of pneumoconiosis over nine years in U.S. coal miners: I. Principal findings.

Abstract:

:Chest radiographs, taken at a 9-year interval for 1,261 U.S. coal miners, were read for pneumoconiosis side-by-side by six readers in a controlled trial. Incidence and progression of small, rounded opacities were consistent with levels predicted from dose-response curves developed by the British Pneumoconiosis Field Research interpolated at a concentration derived from U.S. compliance levels mandated over the last 9 years. The results imply that the level of pneumoconiosis in U.S. miners is being reduced through application of the current 2 mg/m3 standard. The long developmental period for pneumoconiosis necessitates that further study be undertaken to verify this finding and to determine whether 2 mg/m3 is an appropriate regulatory dust level for the prevention of category 2 or greater simple pneumoconiosis over a 35-year period.

journal_name

Am J Ind Med

authors

Attfield M,Reger R,Glenn R

doi

10.1002/ajim.4700060604

subject

Has Abstract

pub_date

1984-01-01 00:00:00

pages

407-15

issue

6

eissn

0271-3586

issn

1097-0274

journal_volume

6

pub_type

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