[ RadSafe ] e: U.S. Nuclear Power Industry Workers Study - Healthy Worker Effect

[John Jacobus]

Ahh, yes.  Another mega-study.  If you can give me any
information, I will try and track it down.  Thanks.

--- Susan Gawarecki <loc at icx.net> wrote:
> John,
> 
> I can't easily lay my hands on the report, but I
> could track down the 
> author if necessary.  Statistical significance was
> gained by combining 
> the studies of the ten facilities to get a large
> enough population.
> 
> Susan Gawarecki
> 
> John Jacobus wrote:
> 
> >One question I have was the difference between the
> >numbers statistically significant.  I don't just
> mean
> >that one numbers was 36 and the other 45.
> >
> >I am not saying I am an expert in the area but
> would
> >like to offer the following.  Consider that the
> number
> >of cancers in the cohort, non-exposed group was 45,
> >and the confidence level was 6 to 70.  Now, if the
> >cancers in the exposured group was 36, that is
> >certainly with the expected range of 6 to 70.  I
> would
> >say that would show that there is no harmful
> effect. 
> >However, to say that there is a healthy worker
> effect
> >would be a stretch is all other factors, e.g., age,
> >children born, smoking, etc., were held equal.
> >
> >Can you cite the report?
> >  
> >
> 
> 

+++++++++++++++++++
"Embarrassed, obscure and feeble sentences are generally, if not always, the result of embarrassed, obscure and feeble thought."
Hugh Blair, 1783

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

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