Current opinion in pulmonary medicine · 2013
Mortality in chrysotile asbestos workers in China.
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Wang Xiaorong, Courtice Midori N, Lin Sihao
Аннотация
PURPOSE OF REVIEW: China has been the world's top chrysotile asbestos consumer and producer. However, the national mortality rate for asbestos-related diseases, particularly from malignancies, is unknown. This review elaborates recent studies on cancer mortality and nonmalignant respiratory diseases in Chinese chrysotile asbestos workers.
RECENT FINDINGS: Studies conducted in asbestos products factory workers and miners have demonstrated strong associations between exposure to chrysotile and mortality rates for lung cancer and nonmalignant respiratory diseases. Mortality rates for lung cancer and nonmalignant respiratory diseases in both asbestos workers and miners are four and three times higher, respectively, than expected, which are greater than those seen in studies from western countries, likely a reflection of heavier exposures and less effective protection for workers. An increased risk of gastrointestinal cancer was also detected in chrysotile miners. There have been surprisingly few reported cases of mesothelioma, however, which could, at least partially, indicate a problem in diagnosis.
SUMMARY: Given the substantially increased death risks for lung cancer and nonmalignant respiratory diseases, urgent efforts must be made to implement occupational health and safety regulations and decrease workers' exposures to prevent a future heavier disease burden. Meanwhile, improvements in diagnostics and systematic recording of the incidence and mortality of asbestos-related diseases are needed.
RECENT FINDINGS: Studies conducted in asbestos products factory workers and miners have demonstrated strong associations between exposure to chrysotile and mortality rates for lung cancer and nonmalignant respiratory diseases. Mortality rates for lung cancer and nonmalignant respiratory diseases in both asbestos workers and miners are four and three times higher, respectively, than expected, which are greater than those seen in studies from western countries, likely a reflection of heavier exposures and less effective protection for workers. An increased risk of gastrointestinal cancer was also detected in chrysotile miners. There have been surprisingly few reported cases of mesothelioma, however, which could, at least partially, indicate a problem in diagnosis.
SUMMARY: Given the substantially increased death risks for lung cancer and nonmalignant respiratory diseases, urgent efforts must be made to implement occupational health and safety regulations and decrease workers' exposures to prevent a future heavier disease burden. Meanwhile, improvements in diagnostics and systematic recording of the incidence and mortality of asbestos-related diseases are needed.