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RE: Radar and Mortality
Thanks Bill,
The same is true for the rad techs. They got 50 rad during training by
practicing on each other :-) plus whatever they got in typically 2 years
of work as a rad tech.
I suppose you want a ref :-)
Our report has:
Senior Medical Investigator Emeritus, Nobel Laureate (Physiology or
Medicine 1977) Dr. Rosalyn Yalow, Bronx VA Medical Center, and Solomon
A. Berson Distinguished Professor-at-Large, Mt. Sinai School of
Medicine, report (1994) on British radiologists that: "British
radiologists before 1921 [including extreme WWI exposures] had 75%
excess cancer-related deaths compared to other physicians. However,
those starting after 1921 (with general improved radiation protection
practices) had no excess cancer deaths, with typical excess exposures
estimated at 100 to 500 rem (Smith and Doll 1981)"
Dr. Yalow also states (1994) that: "In WWII, 6500 radiologic technicians
had an estimated 50 rem in training, with 24 months median service. A
29-year follow-up found no increased malignancies compared to army
medical, laboratory, and pharmacy technicians." (Jablon 1978)
And from PubMed:
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&lis
t_uids=628739&dopt=Abstract
Radiology 1978 Mar;126(3):677-9
Army technologists: 29-year follow up for cause of death.
Jablon S, Miller RW.
A previous 18-year follow-up study revealed no significant excess of
cancer among men who served in the Army during World War II as
radiological technologists (n = 6,560) as compared with men who served
as medical, laboratory, or pharmacy technologists (n = 6,826). Extension
of the follow up by 11 years (1946-1974) revealed that 145 former
radiological technologists had died of cancer, as compared with 158
controls. No statistically significant differences were found between
these groups for individual sites of cancer or for deaths from other
causes.
Regards, Jim
============
> -----Original Message-----
> From: epirad@mchsi.com [mailto:epirad@mchsi.com]
> Sent: Monday, April 29, 2002 12:54 PM
> To: muckerheide
> Cc: radsafe@list.vanderbilt.edu
> Subject: Radar and Mortality
>
>
> Interesting study regarding mortality and radar exposure.
>
>
> American Journal of Epidemiology Vol. 155, No. 9 : 810-
> 818 Copyright (c) 2002 by The Johns Hopkins University
> School of Hygiene and Public Health
>
> ---------------------------------------------------------
> -----------------------
>
> ORIGINAL CONTRIBUTIONS
>
> Cancer in Korean War Navy Technicians: Mortality Survey
> after 40 Years
>
> Frank D. Groves1, William F. Page2, Gloria Gridley1,
> Laure Lisimaque1, Patricia A. Stewart1, Robert E.
> Tarone1, Mitchell H. Gail1, John D. Boice, Jr3 and
> Gilbert W. Beebe1
> 1 Division of Cancer Epidemiology and Genetics, National
> Cancer Institute, Bethesda, MD.
> 2 Medical Follow-up Agency, National Academy of
> Sciences, National Research Council, Washington, DC.
> 3 International Epidemiology Institute, Rockville, MD,
> and Vanderbilt-Ingram Cancer Center, Vanderbilt
> University, Nashville, TN.
>
> This study reports on over 40 years of mortality follow-
> up of 40,581 Navy veterans of the Korean War with
> potential exposure to high-intensity radar. The cohort
> death rates were compared with mortality rates for White
> US men using standardized mortality ratios, and the
> death rates for men in occupations considered a priori
> to have high radar exposure were compared with the rates
> for men in low-exposure occupations using Poisson
> regression. Deaths from all diseases and all cancers
> were significantly below expectation overall and for the
> 20,021 sailors with high radar exposure potential. There
> was no evidence of increased brain cancer in the entire
> cohort (standardized mortality ratio (SMR) = 0.9, 95%
> confidence interval (CI): 0.7, 1.1) or in high-exposure
> occupations (SMR = 0.7, 95% CI: 0.5, 1.0). Testicular
> cancer deaths also occurred less frequently than
> expected in the entire cohort and high-exposure
> occupations. Death rates for several smoking-related
> diseases were significantly lower in the high-exposure
> occupations. Nonlymphocytic leukemia was significantly
> elevated among men in high-exposure occupations but in
> only one of the three high-exposure occupations, namely,
> electronics technicians in aviation squadrons (SMR =
> 2.2, 95% CI: 1.3, 3.7). Radar exposure had little effect
> on mortality in this cohort of US Navy veterans.
>
>
> Key Words: leukemia * nonlymphocytic * acute *
> microwaves * mortality * neoplasms * veterans
>
> **************************************************************
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