[mattybrennan]

Disagree. Note that both mammogram and colonoscopy frequency recommendations have both been reduced recently, both because the cost of screening and because of the consequences of false positives resulting in unnecessary medical intervention

[bluGill]

That is a useful point, but not reason to disagree. In this case a cheap test that indicates you need a better test is useful. The risk of false positives needs to be considered, but that is for medical professionals. Even if the ultimate answer is for most people nothing more is done it still gets people into the doctor to explain what else they need to look for before a test is done.