[ RadSafe ] McGregor and Land (1977) Hormesis Hidden! .

[howard long]

John quotes conclusions:
"Observed 144, Expected 140" 
(TOTAL rates for breast cancer are unchanged in bomb survivors!) 
and, "0-9 rads O 105, E 96." 
 
  John's quoted conclusion, HIDES BENEFITof "1-9 rad: O 34, E 42.3," (Table 2 in the body of the paper, attached to e-mail for those of you requesting it) 
and BENEFIT at 0-1rad: "O 109, E 127" 
 
There were increasingly hIgh rates with exposure increase over 10 rad (table 2), reflecting the harm expected from high doses, 50-100-200->200 rads
 
Why, like with the Kyoto press summary, would conclusions differ from the data?
I won't risk speculation, for fear of sounding cynical.
 
Howard Long
 
 
 
John Jacobus <crispy_bird at yahoo.com> wrote:
>From D. H. McGregor, C. E. Land, K. Choi, S. Tokuoka,
P.I. Liu, T. Wakabayashi and G. W. Beebe, Breast
cancer incidence among atomic bomb survivors,
Hiroshima and Nagasaki, 1950–69. J. Natl. Cancer
Inst. 59, 799–811 (1977).

"If there were serious bias in the breast cancer
ascertainment, incidence estimates for those
individuals not in the city ATB (at time of bombing)
or individuals exposed to low doses of radiation (0-9
rads) should have been well below those ordinarily
found in Janpan. However, comparisons of observed
numbers of cases with the expected numbers based on
age-specific incidence generally taken as
representatvie for Japan, e.g., those for the Miyagi
and Okayana prefectures, show no evidence that the
ascertainment was, in fact, short of expectaion for
the group not in either city and for the group exposed
to 0-9 rads:

Group                   Observed Expected
Not in either city       39         44
Exposed to 0-9 rads 105       96
Total                        144     140


If anyone would like the original report, let me know.


+++++++++++++++++++
"A positive attitude may not solve all your problems, but it will annoy
enough people to make it worth the effort." Herm Albright

-- John
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird at yahoo.com




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