Seems like a remote chance. I guess they might screen for prostate cancers and the vast majority of those are medically insignificant (early stage indolent cancers).
I'm reading Daniel Kahneman's "Thinking, Fast and Slow" at the moment. For those that don't know, Kahneman is a psychologist and economics nobel-prize winner. Yesterday, I read through a chapter of "expert opinion vs. statistics" and it specifically discussed medical experts vs. medical statistics. It turned out that the opinions of medical experts are at most about as good, but never better and mostly worse than statistics. So yeah, one should pay much more attention to such statistics than to some experts who say that person XYZ, or let's say, for example, Sam Simon, has at most 6 months to live.