Format

Send to

Choose Destination
Am J Public Health. 1992 Jul;82(7):964-70.

Epidemiological data on US coal miners' pneumoconiosis, 1960 to 1988.

Author information

1
Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, WV 26505.

Abstract

OBJECTIVES:

Statistics on prevalence of pneumoconiosis among working underground coal miners based on epidemiologic data collected between 1960 and 1988 are presented. The main intent was to examine the time-related trend in prevalence, particularly after 1969, when substantially lower dust levels were mandated by federal act.

METHODS:

Data from studies undertaken between 1960 and 1968 were collected and compared. Information for the period 1969 to 1988 was extracted from a large ongoing national epidemiologic study. Tenure-specific prevalence rates and summary statistics derived from the latter data for four consecutive time intervals within the 19-year period were calculated and compared.

RESULTS:

The results indicate a reduction in pneumoconiosis over time. The trend is similar to that seen in a large radiologic surveillance program of underground miners operated concurrently.

CONCLUSIONS:

Although such factors as x-ray reader variation, changes in x-ray standards, and worker self-selection for examination may have influenced the findings to some extent, adjusted summary rates reveal a reduction in prevalence concurrent with reductions in coal mine dust levels mandated by federal act in 1969.

PMID:
1535182
PMCID:
PMC1694067
DOI:
10.2105/ajph.82.7.964
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Atypon Icon for PubMed Central
Loading ...
Support Center