<br><br><div class="gmail_quote">On Thu, Sep 8, 2011 at 8:59 PM, John-Thomas Richards <span dir="ltr"><<a href="mailto:jtr@jrichards.org">jtr@jrichards.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
On Thu, Sep 08, 2011 at 12:07:24PM -0400, Bob Kline wrote:<br> <br>
<br>
> Quite a bit of discrimination there Age. "Race." And the big shocker<br>
> for me is gender discrimination. Has the world learned nothing?<br>
><br>
> Anyway, go for the test. Even if it was just free, and they didn't<br>
> pay you a dime, it's worth the time.<br>
<br>
Um...discrimination? "PSA Test" stands for "Prostate-Specific Antigen<br>
Test." Exactly *zero* women have ever died from prostate cancer since,<br>
you know, they don't have prostates. Prostate cancer largely afflicts<br>
older men. Hence the age restriction. The only really puzzling part of<br>
these restrictions is race since black men are far more likely to get<br>
prostate cancer than white men (white men are also more likely to get<br>
prostate cancer than Hispanics or Asians).<br>
--<br>
john-thomas <br></blockquote><div><br></div><div>Ya, I kind of thought the gender part</div><div>gave it away as tongue in cheek......</div><div><br></div><div>Re older me, but there are nevetheless</div><div>complications. Not all prostate cancer will</div>
<div>kill you - some is slow moving and some</div><div>is not. And a high PSA value doesn't</div><div>necessarily mean cancer, but will probably</div><div>mean you're in for a biopsy. </div><div><br></div><div>The real problem is that people with</div>
<div>PSA values of zero have died from</div><div>prostate cancer.... PSA is not only</div><div>the best test available now, it's the only</div><div>one. And it's not all that good.</div><div><br></div><div>The one thing that does seem to have</div>
<div>meaning is the rate of changes. Any</div><div>particular value of PSA means little,</div><div>but going from 2 to 4, for example, in a </div><div>short period of time often means trouble, any </div><div>you want to be checked out. This goes</div>
<div>beyond the folklore that young people</div><div>don't get prostate cancer - they do.</div><div>Just less often. And don't believe </div><div>anyone that tells you prostate cancer</div><div>can't kill you - it can. </div>
<div><br></div><div>Another problem is that the machines</div><div>testing for PSA have trouble near zero.</div><div>Even a woman's blood would probably</div><div>not show a true zero reading.</div><div><br></div><div>
Now, if PSA and cancer are related,</div><div>why is a low PSA value OK? Well, as</div><div>mentioned, it isn't necessarily. It's the</div><div>changes that one might worry about.</div><div>Beyond that, a urologist will tell you</div>
<div>that interpreting PSA values is largely</div><div>a black art. It's the only tool available</div><div>at present.</div><div><br></div><div><br></div><div> -- Bob</div><div><br></div></div>
<br />--
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