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Nested case-control study of external ionizing radiation dose and mortality from dementia within a pooled cohort of female nuclear weapons workers.

Authors
Sibley-RF; Moscato-BS; Wilkinson-GS; Natarajan-N
Source
Am J Ind Med 2003 Oct; 44(4):351-358
NIOSHTIC No.
20029244
Abstract
A prior investigation of this cohort of female nuclear workers found increased deaths from mental disorders, including dementia. The present study estimates the effect of workplace exposures to ionizing radiations and other hazards on mortality from dementia. A nested case-control study within a pooled cohort of 67,976 female nuclear workers compared 91 cases of death from dementia with 910 controls. Adjusted odds ratios (ORs) were employed to estimate the effects of maximum annual and total lifetime radiation doses on the occurrence of dementia in 168 monitored workers. Both maximum annual (OR = 2.11, 95% confidence interval (CI) = 0.98, 4.40) and total lifetime radiation doses (OR = 2.09, 95% CI = 1.02, 4.29) were associated with death from dementia. Significant dose-response trends were present for both exposures. Occupational exposure to ionizing radiation (IR) may be associated with increased risk of death from dementia in female workers. Since these findings are based on a small number of cases, replication with a larger case sample should be pursued.
Keywords
Case-studies; Ionizing-radiation; Mortality-data; Mortality-rates; Workers; Occupational-exposure; Radiation-exposure; Radiation-effects; Epidemiology; Demographic-characteristics; Sex-factors; Women; Mental-disorders
Contact
Ralph F. Sibley, Department of Family Medicine, State University of New York, Buffalo, 462 Grider St., Buffalo, NY 14215
CODEN
AJIMD8
Publication Date
20031001
Document Type
Journal Article
Email Address
rsibley@buffalo.edu
Funding Amount
282226
Funding Type
Grant
Fiscal Year
2004
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003274
Issue of Publication
4
ISSN
0271-3586
Source Name
American Journal of Industrial Medicine
State
NY
Performing Organization
Department of Social and Preventive Medicine, 270 Farber Hall, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York
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