Hanford radiation study III: a cohort study of the cancer risk from radiation to workers at Hanford (1944-77 deaths) by the method of regression models in life tables.
Kneale-GW; Mancuso-TF; Stewart-AM
Br J Ind Med 1981 May; 38(2):156-166
Health risks from low lead radiation exposure of workers in a plutonium (7440075) manufacturing facility were evaluated. Data was obtained from studies of workers at the Hanford Works. The statistical methodology employed a dose effect model applied to specific subgroups of the worker cohort. Maximum likelihood estimates of death rates were calculated by varying the parameters while no assumptions were made concerning cancer mortality of the workers. The dose response showed a significant downward trend at about 10 rads. The interval between cancer induction and death was a maximum likelihood estimate of 25 years. The authors suggest that cancer risk increases with age, and conclude that the exposure rate is 2 to 3 times lower by this methodology than by linear extrapolation.
NIOSH-Publication; NIOSH-Grant; Radiation-exposure; Radiation-hazards; Health-surveys; Mortality-rates; Age-factors; Epidemiology; Radioactive-heavy-metals; Occupational-medicine
Industrial Environ Health Scis Univ of Pittsburgh, Crabtree H 130 Desoto Street Pittsburgh, PA 15261
British Journal of Industrial Medicine
University of Pittsburgh, Pittsburgh, Pennsylvania