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Differences in lung function and prevalence of pneumoconiosis between two kaolin plants.

Authors
Baser-ME; Kennedy-TP; Dodson-R; Rawlings-W Jr.; Rao-NV; Hoidal-JR
Source
Br J Ind Med 1989 Nov; 46(11):773-776
NIOSHTIC No.
00193061
Abstract
Differences in lung function and prevalence of pneumoconiosis between workers at two kaolin factories were studied to investigate the basis for discrepant pulmonary function findings. Spirometric and radiographic data collected in a cross sectional survey of the two facilities were analyzed. The crude relations of independent variables to dependent variables were tested using the chi squared test with continuity correction for discrete variables and the two tailed t-test for continuous variables. Independent variables included facility, years in production, age, height, race, and smoking status. As compared with workers in facility-2, workers in facility-1 had a 2.7 fold greater prevalence of pneumoconiosis even after adjusting for age and years in production. Relative to workers in facility-2, workers in facility-1 had a mean 0.368 liter decrement in adjusted forced vital capacity. The authors conclude that the previous finding that exposure to kaolin (1332587) was not associated with a decrement in lung function may have resulted from failure to consider differences between the two facilities; future studies of the industry should include information on respirable particle size and concentration for calcined versus hydrous kaolin.
Keywords
NIOSH-Publication; NIOSH-Grant; Occupational-exposure; Lung-function; Pulmonary-function; Pulmonary-function-tests; Factory-workers; Spirometry; Occupational-respiratory-disease; Epidemiology; Mineral-dusts
Contact
Medicine University of Tennessee Room H-314, Coleman Bldg Memphis, TN 38163
CODEN
BJIMAG
CAS No.
1332-58-7
Publication Date
19891101
Document Type
Journal Article
Funding Amount
574424
Funding Type
Grant
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-02264
Issue of Publication
11
ISSN
0007-1072
Priority Area
Pulmonary-system-disorders
Source Name
British Journal of Industrial Medicine
State
TN
Performing Organization
University of Tenn Center Health Scien, Memphis, Tennessee
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