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Database Requirements for Epidemiological Estimates of Radiation Risks in Continuously Exposed Populations
Author(s) -
Mayya Y. S.,
Joshi P. V.,
Nambi K. S. V.
Publication year - 1994
Publication title -
risk analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.972
H-Index - 130
eISSN - 1539-6924
pISSN - 0272-4332
DOI - 10.1111/j.1539-6924.1994.tb00294.x
Subject(s) - radiological weapon , database , epidemiology , environmental health , commission , radiation protection , demography , geography , medicine , toxicology , nuclear medicine , computer science , biology , political science , surgery , pathology , law , sociology
Using the revised risk coefficients recommended by the 1990 report of the International Commission of Radiological Protection (ICRP), computations have been made on the minimum databases required for detecting radiogenic cancer excesses from epidemiological surveys of populations exposed to low level radiations. The computations have been made separately for Indian and Western populations using their representative demographic data. The western database requirements are generally found to be about half the Indian requirement. For the exposures in high background radiation areas at the rate of say 5 mSv/y, the minimum required database is 121,500 person years, in the Indian case. Similarly, for Indian occupational workers exposed at the rate of say, 10 mSv/y, it is required to observe 30,000 persons for the first 40 years or 3600 persons over their entire lifetime for obtaining statistically significant results.