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N White - One of the best experts on this subject based on the ideXlab platform.
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prevalence of occupational lung disease in a random sample of former mineworkers libode district eastern cape province south africa
American Journal of Industrial Medicine, 1998Co-Authors: A S M Trapido, Richard Goode, Nokuzola P Mqoqi, Cecil Macheke, Anthony J Davies, Albert Solomon, Brian G. Williams, N White, Clifford PanterAbstract:Background Gold mineworkers in South Africa are exposed to high levels of silica dust as a result of which they are at risk of developing silicosis, which is a compensable disease. The incidence of tuberculosis is also high. Methods To determine the prevalence of occupational lung disease and the previous compensation history in former migrant mineworkers, a study was undertaken in a random sample of men living in Libode, a rural district of Eastern Cape Province, South Africa. Two hundred thirty-eight ex-mineworkers were examined according to a protocol that included chest radiography and spirometry. Chest radiographs were read into the International Labour Organisation (ILO) classification for pneumoconioses by two readers. Results The mean age was 52.8 years, and the mean length of service was 12.15 years. The prevalence of Pneumoconiosis (≥ILO 1/0) was 22% and 36% (variation by reader). For both readers, a significant association between length of service and Pneumoconiosis and between Pneumoconiosis and reduction in FVC and FEV was found. Twenty-four percent of study subjects were eligible for compensation. Conclusion There is a high prevalence of previously undiagnosed, uncompensated Pneumoconiosis in the study group. As a result of the failure to diagnose and compensate occupational lung disease, the social and economic burden of such disease is being borne by individuals, households, and the migrant labor-sending communities as a whole. Am. J. Ind. Med. 34:305–313, 1998. © 1998 Wiley-Liss, Inc.
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prevalence of occupational lung disease in a random sample of former mineworkers libode district eastern cape province south africa
American Journal of Industrial Medicine, 1998Co-Authors: A S M Trapido, Richard Goode, Nokuzola P Mqoqi, Cecil Macheke, Anthony J Davies, Albert Solomon, Brian G. Williams, N White, Clifford PanterAbstract:Background Gold mineworkers in South Africa are exposed to high levels of silica dust as a result of which they are at risk of developing silicosis, which is a compensable disease. The incidence of tuberculosis is also high. Methods To determine the prevalence of occupational lung disease and the previous compensation history in former migrant mineworkers, a study was undertaken in a random sample of men living in Libode, a rural district of Eastern Cape Province, South Africa. Two hundred thirty-eight ex-mineworkers were examined according to a protocol that included chest radiography and spirometry. Chest radiographs were read into the International Labour Organisation (ILO) classification for pneumoconioses by two readers. Results The mean age was 52.8 years, and the mean length of service was 12.15 years. The prevalence of Pneumoconiosis (≥ILO 1/0) was 22% and 36% (variation by reader). For both readers, a significant association between length of service and Pneumoconiosis and between Pneumoconiosis and reduction in FVC and FEV was found. Twenty-four percent of study subjects were eligible for compensation. Conclusion There is a high prevalence of previously undiagnosed, uncompensated Pneumoconiosis in the study group. As a result of the failure to diagnose and compensate occupational lung disease, the social and economic burden of such disease is being borne by individuals, households, and the migrant labor-sending communities as a whole. Am. J. Ind. Med. 34:305–313, 1998. © 1998 Wiley-Liss, Inc.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
G Schierhout - One of the best experts on this subject based on the ideXlab platform.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
Morgan Gloria - One of the best experts on this subject based on the ideXlab platform.
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Characterization of respiratory health conditions of workers exposed to coal dust in underground mining in Boyacá, 2013.
'Universidad Industrial de Santander', 2020Co-Authors: Garrote-wilches, Carolina F., Malagón-rojas, Jeadran N., Morgan Gloria, Combariza David, Varona MarcelaAbstract:Introducción: la neumoconiosis de los mineros de carbón es una enfermedad pulmonar ocupacional asociada a factores individuales y condiciones laborales específicas. Se manifiesta progresiva e irreversiblemente, afectando la salud de los trabajadores y la productividad laboral. Objetivo: caracterizar las condiciones de salud respiratoria e identificar los factores de riesgo asociados al desarrollo de neumoconiosis en trabajadores que han laborado expuestos a polvo de carbón en minas de socavón en Boyacá, 2013. Materiales y métodos: Se realizó un estudio descriptivo de corte transversal en trabajadores de minería de socavón expuestos a polvo de carbón en el departamento de Boyacá. Se llevó a cabo un registro completo de historia clínica ocupacional, examen físico completo, toma de radiografía de tórax, prueba de tuberculina y espirometría. Resultados: participaron 170 trabajadores masculinos. 75% de la población tenía antigüedad en el sector minero mayor a 12,5 años. Roncus, sibilancias y estertores predominaron en trabajadores con más de 20 años de antigüedad. Expectoración y tos se encontraron más frecuentemente en quienes realizaban la extracción mecanizada. El 15,9% de las radiografías de tórax fueron compatibles con neumoconiosis, 17,1% de las pruebas de tuberculina se encontraron positivas. 5,3% de las espirometrías mostraron alteraciones de vía aérea periférica y 2,4% mostraron patrón obstructivo. Discusión y conclusión: Los cambios radiológicos sugestivos de neumoconiosis fueron más frecuentes en trabajadores con antigüedad menor de 20 años. Los hallazgos espirométricos anormales predominaron en el grupo con antigüedad mayor a 20 años. Es necesario revisar protocolos de vigilancia epidemiológica y realizar seguimiento por medicina laboral.Introduction: coal miners' Pneumoconiosis is an occupational lung disease associated with individual factors and specific working conditions. It is manifested progressively and irreversibly, affecting the health of workers and labor productivity. Objective: To characterize the respiratory health conditions and identify risk factors associated with the development of Pneumoconiosis in workers that have been exposed to coal dust in the underground mines at Boyacá, 2013. Materials and Methods: A descriptive cross-sectional study was conducted among mining workers exposed to coal dust in the department of Boyacá. It was conducted a complete record of occupational medical history, physical exam, taking chest radiography, tuberculin test and spirometry. Results: 170 male workers participated. 75% of the population had worked in the mining sector for more than12.5 years old. Rhonchi, wheezing and rattling predominated in workers over 20 years old. Expectoration and cough were most frequently found in those who made mechanized extraction. 15.9% of chest X rays were compatible with Pneumoconiosis, 17.1% of tuberculin tests were found positive. 5.3% of spirometries showed peripheral airway abnormalities and 2.4% showed obstructive pattern. Discussion and conclusion: Radiological changes suggestive of Pneumoconiosis were more frequent in workers under 20 years old. Abnormal spirometric findings predominated in the group with more than 20 years old. It is important to review surveillance protocols and perform monitoring through occupational medicine
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Evaluación de la exposición al polvo de carbón y de sílice en sitios de minería subterránea en tres departamentos de Colombia
'Instituto Nacional de Salud (Colombia)', 2020Co-Authors: Varona Marcela, Morgan Gloria, Ibáñez-pinilla Milcíades, Briceño Leonardo, Groot Helena, Narváez Diana, Palma Marién, Herrera Diego, Torres CarlosAbstract:"Introduction: Coal workers’ Pneumoconiosis is a chronic and irreversible disease representing a public health problem. Objective: To estimate the prevalence of Pneumoconiosis and its associated factors among underground coal miners in the Colombian departments of Boyacá, Cundinamarca and Norte de Santander. Materials and methods: We conducted a cross-sectional study of 476 miners to measure the prevalence of Pneumoconiosis and its associated factors such as coal dust and silica levels, as well as the occupational conditions. The medical assessment and a chest x-ray were performed according to the International Labor Organization criteria, along with spirometry and the identification of glutathione S-transferase and repair enzyme polymorphisms.The associations were explored using Cox regression models. Results: We performed a total of 479 environmental monitoring sessions in 31 companies and we evaluated 476 workers with 10 to 57 years of mining work experience. The prevalence of Pneumoconiosis was 33.8% (95% CI: 27.0 - 41.3%). In the Cox multivariate regression model with a constant risk time, Pneumoconiosis was significantly associated with working in medium-sized companies (PR=2.00, 95% CI: 0.995 - 2.690; p=0.052), the level of severe exposure to coal dust (PR=2.055, 95% CI: 1.043 - 4.048; p=0.038), and working in underground mining for 25 years or more (for those with 25.0-29.9 years: PR=2.199, 95% CI: 1.449 - 3.338; p=0.001). Conclusions: The prevalence of Pneumoconiosis was very high and was found to be associated with severe exposure to coal dust, work exposure for 25 years or more and working in medium-sized enterprisesIntroducción. La neumoconiosis de mineros del carbón es una enfermedad crónica e irreversible que se considera un problema de salud pública. Objetivo. Estimar la prevalencia de neumoconiosis y sus factores asociados en mineros de carbón de Boyacá, Cundinamarca y Norte de Santander. Materiales y métodos. Se hizo un estudio de corte transversal en 476 mineros. Se les hizo valoración médica, se tomaron radiografías de tórax siguiendo los criterios de la Organización Internacional del Trabajo, así como espirometrías, y se identificaron los polimorfismos de la glutatión S-transferasa y de las enzimas de reparación. Las asociaciones entre las condiciones ocupacionales y de la empresa con la neumoconiosis, se estudiaron usando modelos de regresión de Cox. Resultados. En 31 empresas se hicieron 479 monitorizaciones ambientales y se evaluaron 476 trabajadores cuyo tiempo de trabajo fluctuaba entre 10 y 57 años. La prevalencia de la neumoconiosis fue de 33,8 % (IC95% 27,0-41,3). En el modelo de regresión multivariado de Cox, con tiempo de riesgo constante para la neumoconiosis, esta se asoció significativamente con el trabajo en empresas medianas (razón de prevalencias, RP=2,00; IC95% 0,995- 2,690; p=0,052), con un nivel alto de exposición al polvo de carbón según el índice de exposición (RP=2,055; IC95% 1,043-4,048; p=0,038), y una antigüedad de 25 años o más (para 25,0 a 29,9 años: RP=2,199; IC95% 1,449-3,338; p=0,001). Conclusiones. La prevalencia de la neumoconiosis fue muy alta y se asoció a la exposición a altos niveles de polvo de carbón, a una exposición laboral mayor o igual a 25 años y al trabajo en empresas medianas.
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Caracterización de las condiciones de salud respiratoria de los trabajadores expuestos a polvo de carbón en minería subterránea en Boyacá, 2013.
'Universidad Industrial de Santander', 2014Co-Authors: Garrote-wilches, Carolina F., Malagón-rojas, Jeadran N., Morgan Gloria, David . Combariza, Marcela . VaronaAbstract:Introducción: la neumoconiosis de los mineros de carbón es una enfermedad pulmonar ocupacional asociada a factores individuales y condiciones laborales específcas. Se manifesta progresiva e irreversiblemente, afectando la salud de los trabajadores y la productividad laboral. Objetivo: caracterizar las condiciones de salud respiratoria e identifcar los factores de riesgo asociados al desarrollo de neumoconiosis en trabajadores que han laborado expuestos a polvo de carbón en minas de socavón en Boyacá, 2013. Materiales y métodos: Se realizó un estudio descriptivo de corte transversal en trabajadores de minería de socavón expuestos a polvo de carbón en el departamento de Boyacá. Se llevó a cabo un registro completo de historia clínica ocupacional, examen físico completo, toma de radiografía de tórax, prueba de tuberculina y espirometría. Resultados: participaron 170 trabajadores masculinos. 75% de la población tenía antigüedad en el sector minero mayor a 12,5 años. Roncus, sibilancias y estertores predominaron en trabajadores con más de 20 años de antigüedad. Expectoración y tos se encontraron más frecuentemente en quienes realizaban la extracción mecanizada. El 15,9% de las radiografías de tórax fueron compatibles con neumoconiosis, 17,1% de las pruebas de tuberculina se encontraron positivas. 5,3% de las espirometrías mostraron alteraciones de vía aérea periférica y 2,4% mostraron patrón obstructivo. Discusión y conclusión: Los cambios radiológicos sugestivos de neumoconiosis fueron más frecuentes en trabajadores con antigüedad menor de 20 años. Los hallazgos espirométricos anormales predominaron en el grupo con antigüedad mayor a 20 años. Es necesario revisar protocolos de vigilancia epidemiológica y realizar seguimiento por medicina laboral.Palabra clave: Neumoconiosis, minería del carbón, tuberculosis, condiciones de trabajo, exposiciónocupacional, Colombia.Forma de citar: Garrote Wilches CF, Malagón Rojas JN, Morgan G, Combariza D, Varona, M. Caracterización de las condiciones de salud respiratoria de los trabajadores expuestos a polvo de carbón en minería subterránea en Boyacá, 2013. rev.univ.ind.santander.salud 2014; 46 (3): 237-247Characterization of respiratory health conditions of workers exposed to coal dust in underground mining in Boyacá, 2013. Introduction: coal miners´ Pneumoconiosis is an occupational lung disease associated with individual factors and specifc working conditions. It is manifested progressively and irreversibly, affecting the health of workers and labor productivity. Objective: To characterize the respiratory health conditions and identify risk factors associated with the development of Pneumoconiosis in workers that have been exposed to coal dust in the underground mines at Boyacá, 2013. Materials and Methods: A descriptive cross-sectional study was conducted among mining workers exposed to coal dust in the department of Boyacá. It was conducted a complete record of occupational medical history, physical exam, taking chest radiography, tuberculin test and spirometry. Results: 170 male workers participated. 75% of the population had worked in the mining sector for more than12.5 years old. Rhonchi, wheezing and rattling predominated in workers over 20 years old. Expectoration and cough were most frequently found in those who made mechanized extraction. 15.9% of chest X rays were compatible with Pneumoconiosis, 17.1% of tuberculin tests were found positive. 5.3% of spirometries showed peripheral airway abnormalities and 2.4% showed obstructive pattern. Discussion and conclusion: Radiological changes suggestive of Pneumoconiosis were more frequent in workers under 20 years old. Abnormal spirometric fndings predominated in the group with more than 20 years old. It is important to review surveillance protocols and perform monitoring through occupational medicine.Keywords: Pneumoconiosis, coal mining, tuberculosis, working conditions, occupational exposure, Colombia
T W Steen - One of the best experts on this subject based on the ideXlab platform.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
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prevalence of occupational lung disease among botswana men formerly employed in the south african mining industry
Occupational and Environmental Medicine, 1997Co-Authors: T W Steen, T Gabosianelwe, S Ludick, G N Mazonde, N Mabongo, Matthew Ncube, N Monare, Rodney Ehrlich, N White, G SchierhoutAbstract:OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination. RESULTS: Overall mean age was 56.7 (range 28-93) years, mean duration of service 15.5 (range 2-42) years. 26.6% had a history of tuberculosis. 23.3% had experienced a disabling occupational injury. Overall prevalence of pnemoconiosis (> 1/0 profusion, by the International Labour Organisation classification) was 26.6%-31.0%, and 6.8% had progressive massive fibrosis (PMF). Many were entitled to compensation under South African law. Both radiograph readers detected time response relations between Pneumoconiosis and PMF among the 234 underground gold miners. PMF could result from < 5 years of exposure, but was not found < 15 years after first exposure. Both pulmonary tuberculosis (PTB) and Pneumoconiosis were found to be associated with airflow limitation. CONCLUSIONS: Former miners in Botswana have a high prevalence of previously unrecognised Pneumoconiosis, indicative of high previous exposures to fibrogenic respirable dust. Their Pneumoconiosis went unrecognised because they had no access to surveillance after employment. Inadequate radiographic surveillance or failure to act on results when employed or when leaving employment at the mines could have contributed to under recognition. Community based studies of former miners are essential to fully evaluate the effects of mining exposures. Our findings indicate a failure of established measures to prevent or identify Pneumoconiosis while these miners were in employment and show that few of the social costs of occupational lung diseases are borne by mining companies through the compensation system.
Clifford Panter - One of the best experts on this subject based on the ideXlab platform.
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prevalence of occupational lung disease in a random sample of former mineworkers libode district eastern cape province south africa
American Journal of Industrial Medicine, 1998Co-Authors: A S M Trapido, Richard Goode, Nokuzola P Mqoqi, Cecil Macheke, Anthony J Davies, Albert Solomon, Brian G. Williams, N White, Clifford PanterAbstract:Background Gold mineworkers in South Africa are exposed to high levels of silica dust as a result of which they are at risk of developing silicosis, which is a compensable disease. The incidence of tuberculosis is also high. Methods To determine the prevalence of occupational lung disease and the previous compensation history in former migrant mineworkers, a study was undertaken in a random sample of men living in Libode, a rural district of Eastern Cape Province, South Africa. Two hundred thirty-eight ex-mineworkers were examined according to a protocol that included chest radiography and spirometry. Chest radiographs were read into the International Labour Organisation (ILO) classification for pneumoconioses by two readers. Results The mean age was 52.8 years, and the mean length of service was 12.15 years. The prevalence of Pneumoconiosis (≥ILO 1/0) was 22% and 36% (variation by reader). For both readers, a significant association between length of service and Pneumoconiosis and between Pneumoconiosis and reduction in FVC and FEV was found. Twenty-four percent of study subjects were eligible for compensation. Conclusion There is a high prevalence of previously undiagnosed, uncompensated Pneumoconiosis in the study group. As a result of the failure to diagnose and compensate occupational lung disease, the social and economic burden of such disease is being borne by individuals, households, and the migrant labor-sending communities as a whole. Am. J. Ind. Med. 34:305–313, 1998. © 1998 Wiley-Liss, Inc.
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prevalence of occupational lung disease in a random sample of former mineworkers libode district eastern cape province south africa
American Journal of Industrial Medicine, 1998Co-Authors: A S M Trapido, Richard Goode, Nokuzola P Mqoqi, Cecil Macheke, Anthony J Davies, Albert Solomon, Brian G. Williams, N White, Clifford PanterAbstract:Background Gold mineworkers in South Africa are exposed to high levels of silica dust as a result of which they are at risk of developing silicosis, which is a compensable disease. The incidence of tuberculosis is also high. Methods To determine the prevalence of occupational lung disease and the previous compensation history in former migrant mineworkers, a study was undertaken in a random sample of men living in Libode, a rural district of Eastern Cape Province, South Africa. Two hundred thirty-eight ex-mineworkers were examined according to a protocol that included chest radiography and spirometry. Chest radiographs were read into the International Labour Organisation (ILO) classification for pneumoconioses by two readers. Results The mean age was 52.8 years, and the mean length of service was 12.15 years. The prevalence of Pneumoconiosis (≥ILO 1/0) was 22% and 36% (variation by reader). For both readers, a significant association between length of service and Pneumoconiosis and between Pneumoconiosis and reduction in FVC and FEV was found. Twenty-four percent of study subjects were eligible for compensation. Conclusion There is a high prevalence of previously undiagnosed, uncompensated Pneumoconiosis in the study group. As a result of the failure to diagnose and compensate occupational lung disease, the social and economic burden of such disease is being borne by individuals, households, and the migrant labor-sending communities as a whole. Am. J. Ind. Med. 34:305–313, 1998. © 1998 Wiley-Liss, Inc.
