[ RadSafe ] Re: U.S. Nuclear Power Industry Workers Study - HealthyWorker Effect

Syd H. Levine syd.levine at mindspring.com
Wed Mar 16 19:41:13 CET 2005


Long's detractors seem far more desperate with respect to massaging the data 
than he does.  If LNT were correct, and ionizing radiation is as dangerous 
as some urge, the Taiwan apartment dwellers, the air crews, the radiation 
oncologists, radiographers, etc. would be one bunch of sick puppies, but 
they do not seem to be.   Instead, Long's detractors seem only to be able to 
make reference to selected portions of very few studies to support LNT. 
What is it that I am not getting here as a mostly lay observer?

Syd H. Levine
AnaLog Services, Inc.
Phone:  270-276-5671
Telefax:  270-276-5588
E-mail:  analog at logwell.com
URL:  www.logwell.com

----- Original Message ----- 
From: "John Jacobus" <crispy_bird at yahoo.com>
To: <John_Sukosky at dom.com>
Cc: "radsafe" <radsafe at radlab.nl>
Sent: Wednesday, March 16, 2005 1:18 PM
Subject: [ RadSafe ] Re: U.S. Nuclear Power Industry Workers Study - 
HealthyWorker Effect


>I agree, but I misread your comments.
>
> What you suggest is the what is usually done, or
> should be done.  However, that is often not.  There
> was a recent "study" of people who lived in apartments
> in Taiwan that were made with Co-60 contaminated
> steel.  The comment was that the cancer rate of these
> individuals compared to the general population was
> low.  Again, there are probable a number of
> confounding factors that enter into the statistics,
> and the best way to do the study would be to use a
> cohort of apartment dwellers in buildings without the
> contaminated steel.  Further, if you look at the
> Japanese atomic bomb studies, the cohort is those who
> probably received little or not radiation exposure,
> but were in the cities at that time.
>
> http://www.rerf.or.jp/eigo/faqs/faqse.htm#faq8
>
> --- John_Sukosky at dom.com wrote:
>
>> I agree that since many factors differ between the
>> worker
>> population and general population, interpretation of
>> these
>> results is limited to calling it a "healthy worker
>> effect".
>>
>> That's why I asked why a comparison cannot be made
>> to
>> non-nuclear power plant workers employed during the
>> same
>> period in order to account for the degree of the
>> healthy
>> worker effect.  Wouldn't that adjust for the major
>> confounders between the worker population and
>> general
>> population? That way we may be better able to
>> observe
>> an obvious benefit or harm due to ionizing
>> radiation.
>>
>> John M. Sukosky, CHP
>> Dominion
>> Surry Power Station
>> (757)-365-2594 (Tieline: 8-798-2594)
>>
>>
>>
>>
>>
>>
>>                       John Jacobus
>>
>>
>>                       <crispy_bird at yaho        To:
>>     John_Sukosky at dom.com, radsafe
>> <radsafe at radlab.nl>
>>                       o.com>                   cc:
>>
>>
>>                       Sent by:
>> Subject:  Re: [ RadSafe ] U.S. Nuclear Power
>> Industry Workers Study - Table 2
>>                       radsafe-bounces at r
>>
>>
>>                       adlab.nl
>>
>>
>>
>>
>>
>>
>>
>>
>>                       03/16/2005 10:39
>>
>>
>>                       AM
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Simply stated, the worker population does not
>> represent the general population.  Consider the
>> absence of breast cancers.  Ergo, no or few women
>> workers.  Also, how many of the workers are under 18
>> or over 65?
>>
>> --- John_Sukosky at dom.com wrote:
>> > Below, I've reproduced Table 2 from the "Analysis
>> of
>> > the
>> > Mortality Experience amongst U.S. Nuclear Power
>> > Industry
>> > Workers after Chronic Low-Dose Exposure to
>> Ionizing
>> > Radiation".
>> > (Howe, et al., 2004)
>> >
>> > Based on these results, the authors stated that:
>> > "...The cohort
>> > displays a very substantial  healthy worker
>> effect,
>> > i.e.,
>> > considerably lower cancer and noncancer mortality
>> > than the
>> > general population...".
>> >
>> > Does anyone know why a comparison cannot be made
>> to
>> > non-nuclear
>> > power plant workers employed during the same
>> period
>> > in order to
>> > account for this "very substantial healthy worker
>> > effect"?
>> >
>> >
>> > John M. Sukosky, CHP
>> > Dominion
>> > Surry Power Station
>> > (757)-365-2594 (Tieline: 8-798-2594)
>> >
>> >
>> > TABLE 2
>> > U.S. Nuclear Power Industry Workers Study (Howe et
>> > al., 2004):
>> > Standardized Mortality Ratios (SMRs) by Cause of
>> > Death, 1979ââ,¬â?o1997
>> >
>> > Cause                            Observed
>> > Expected(a) SMR    95%CI
>> > All causes                        1,190    2922.4
>> > 0.41  0.38, 0.43
>> >   All solid cancers                 368     564.3
>> > 0.65  0.59, 0.72
>> >     Stomach cancer                   16      19.7
>> > 0.81  0.47, 1.32
>> >     Colon cancer                     36      47.8
>> > 0.75  0.53, 1.04
>> >     Pancreatic cancer                18      29.0
>> > 0.62  0.37, 0.98
>> >     Lung cancer                     125     210.4
>> > 0.59  0.49, 0.71
>> >     Prostatic cancer                 14      23.2
>> > 0.60  0.33, 1.01
>> >     Kidney cancer                    14      17.7
>> > 0.79  0.43, 1.32
>> >     Brain and other CNS(b)cancer     23      27.0
>> > 0.85  0.54, 1.28
>> > All lymphopoietic cancer             49      75.7
>> > 0.65  0.48, 0.86
>> >     Multiple myeloma                  6       9.5
>> > 0.63  0.23, 1.37
>> >     Leukemia                         29      27.2
>> > 1.07  0.71, 1.53
>> >     All noncancers                  773    2282.3
>> > 0.34  0.32, 0.36
>> >     Nervous system diseases          20      39.9
>> > 0.50  0.31, 0.77
>> >     Circulatory system diseases     350     832.7
>> > 0.42  0.38, 0.47
>> >     Arteriosclerotic heart
>> >     disease including CHD(c)        248     524.6
>> > 0.47  0.42, 0.54
>> > All vascular lesions of CNS          24      89.5
>> > 0.27  0.17, 0.40
>> > All respiratory diseases             37     129.1
>> > 0.29  0.20, 0.40
>> > All pneumonia                         8      48.1
>> > 0.17  0.07, 0.33
>> > Digestive system diseases            32     148.9
>> > 0.21  0.15, 0.30
>> >
>> > (a) Expected number of deaths based on age-,
>> > gender-, calendar year-
>> >     and cause-specific mortality rates for the
>> U.S.
>> > population during
>> >     1979ââ,¬â?o1997.
>> > (b) Central nervous system.
>> > (c) Coronary heart disease.
>> > > _______________________________________________
>> > You are currently subscribed to the radsafe
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>> >
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>> >
>>
>> +++++++++++++++++++
>> "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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>> _______________________________________________
>>
> === message truncated ===
>
>
> +++++++++++++++++++
> "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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