| Project/Area Number |
11670401
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Public health/Health science
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| Research Institution | The Institute for Science of Labour |
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Principal Investigator |
EBIHARA Isamu The Institute for Science of Labour, Section of research, The chief Researcher (80124311)
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| Co-Investigator(Kenkyū-buntansha) |
KAWAMI Masaki Institute for Science of Labour, Section for Research, The chief Researcher (80153005)
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| Project Period (FY) |
1999 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1999: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | asbestos / pleural plaques / asbestosis / lung cancer / malignant mesothelioma / interstitial pneumonitis / proportionate mortality study / asbestos lung burden / cohort研究 / Asbestos / construction / workers / mesothelioma / arpenter / pleural plaque |
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| Research Abstract |
1. In the construction work, the concentration of asbestos fiber was often high by the work to cut off building materials including the asbestos. In addition, revelation of the asbestos is not avoided by work that an ironsmith, electrician, the painter rake blown asbestos and drop it. In addition, many types of construction work, exposure to asbestos was not avoided directly or indirectly.
2. Sudden increase of the prevalence of pleural plaques among construction workers were confirmed. The prevalence was 1.99% at 2001 year. In addition, pleural plaques was found in 48cases (87.3%) among 55 autopsy cases of construction workers (age 61.6 years old.
3. The prevalence of asbestosis was 2.94% (184 of 6,268 construction workers). In addition, we recognized about 180 severe cases of asbestosis, diffuse pleural thickening cases and asbestos pleurisy cases from the construction worker of the metropolitan area during this period
4. Asbestos related lung cancer show an expanse in all types of job, too. From the 336 cases lung cancer of the construction worker, 253 examples (75%) showed as the asbestos related lung cancer
5. 47 cases of malignant mesothelioma was found among construction workers in metropolitan area. A tendency of the increase is remarkable with year.
6. From the Proportionate Mortality Study about the construction worker in metropolitan area, lung cancer (PMR1.24) and mesothelioma (PMR2.39) showed significantly hgh risk compared with Japanese general male populations.
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