The literature indicates an increase of over 0.75 ug/l per year as suspect.
I am not aware if this increase should persist over more years to eliminate
random measuring error, and if paired samples should be measured like in
infectious diseases to increase confidence in the comparison.
Maurits Pekelharing
Reinier de Graaf Hospital,
Delft, Netherlands.
----- Original Message -----
From: WCStuart <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, July 03, 2000 10:08 PM
Subject: Re: Age-related PSA
>
> In light of the increased mumber of men taking annual PSA tests, I would
> think a better question would be: "What is the minimum difference between
> annual PSA measuements that would warrent an Urgent Referral of Patients
> with Suspected Cancer?"
>
> Warren C Stuart
> Director, The Phoenix Foundation
> http://www.bioport.org
>
>
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