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Document ID (ISN)62581
CIS number 94-1377
ISSN - Serial title 0017-9078 - Health Physics
Year 1993
Convention or series no.
Author(s) Xiang-Zhen X., Lubin J.H., Jun-Yao L., Li-Fen Y., Sheng L.Q., Lan Y., Jian-Zhang W., Blot W.J.
Title A cohort study in Southern China of tin miners exposed to radon and radon decay products
Bibliographic information Feb. 1993, Vol.64, No.2, p.120-131. 35 ref.
Abstract The report is an historical cohort study of exposure to radioactive radon gas among Chinese tin miners. The cohort consists of 17,143 workers with 175,143 person-years of observation and 981 lung cancer events. The excess relative risk increased linearly with exposure, rising 0.6% per working level month (95% confidence interval [CI] = 0.4-0.8). Adjustment for exposure to arsenic dust, a known lung carcinogen, reduced the effect of radon exposure to 0.2% per working level month (95% CI = 0.1-0.2). The excess relative risk/working level month declined significantly with attained age and with radon exposure rate as measured by the cumulative working level month divided by duration of exposure. Lung cancer risk did not vary consistently with age at first radon exposure. A joint analysis of radon exposure and smoking status rejected both an additive and multiplicative association; the relationship was consistent with an intermediate association.
Descriptors (primary) China; long-term exposure; radon daughters; radon
Descriptors (secondary) arsenic; mortality; lung cancer; underground mining; metal mining; epidemiologic study; cohort study; risk factors; cancer
Document type D - Periodical articles
Country / State or ProvinceChina; USA
Subject(s) Radiation
Broad subject area(s) Physical hazards
Browse category(ies) Inorganic substances