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Base de datos CISDOC

ID (ISN) del documento46981
Número CIS 86-1525
ISSN - Título de la serie 0387-821X - Journal of UOEH
Año 1985
Número de serie
Autor(es) Baba Y., Iwao S., Kodama Y.
Título Follow-up study on pulmonary function of dust workers: An epidemiological evaluation of discontinued workers of dust operations
Información bibliográfica Sep. 1985, Vol.7, No.3, p.257-263. Illus. 8 ref.
Resumen An epidemiologic study on 176 workers exposed to dust in various occupations was initiated in 1978. No workers complained of chronic cough or phlegm. Their chest X-rays belonged to Category I as defined by the Pneumoconiosis Law in Japan. Pulmonary function test was performed on these workers, however, 54 workers discontinued taking part in the study by the end of 1979 ("early-discontinued" group), and 49 workers had discontinued by 1981 ("late-discontinued" group). A total of 73 workers had a 5-year follow-up survey of pulmonary function. Forced expiratory volume in 1 second divided by forced vital capacity and forced expiratory flow rate at 25% of FVC divided by height were mainly compared by smoking habit, work years, type of job, size of company, and the time when they discontinued their jobs. Predicted percentage values of lung function were used for the adjustment of the influence of workers' ages. Decrements of these values in the 5-year follow-up group were larger than the 1978 level. The mean values in the early-discontinued group were lower than in the late-discontinued and active working groups. The fact that respiratory function indicators are better for the workers with longer exposure than for the early-discontinued group is a reflection of the "healthy worker effect": only the physically healthiest workers remain in jobs that present health hazards.
Descriptores (primarios) efecto en los trabajadores sanos; trastornos funcionales respiratorios; polvos respirables; instalaciones de aglomerado de minerales; aplicación de aislantes; soldadura y corte; observación de larga duración; duración de la exposición; canteras; fabricación de porcelanas y loza; fundiciones; trabajos de albanileria
Descriptores (secundarios) pruebas funcionales respiratorias; encuesta epidemiológica
Tipo de documento D - Artículos periódicos
Tema(s) Polvos, aerosoles
Broad subject area(s) Medicina del trabajo, epidemiología
Navegación por categoria(s) Diseases of the respiratory system (except for pneumoconiosis & similar)
Mining and quarrying
Glass, pottery and related materials
Welding and cutting
Surface treatment
Foundries, metalcasting and forging operations