Gems from Abraham Verghese's WSJ article, "The Myth of Prevention":
"It is true that if the prevention strategies we are talking about are behavioral things--eat better, lose weight, exercise more, smoke less, wear a seat belt--then they cost very little and they do save money by keeping people healthy.
But if your preventive strategy is medical, if it involves us, if it consists of screening, finding medical conditions early, shaking the bushes for high cholesterols, or abnormal EKGs, markers for prostate cancer such as PSA, then more often than not you don't save anything and you might generate more medical costs. Prevention is a good thing to do, but why equate it with saving money when it won't? Think about this: discovering high cholesterol in a person who is feeling well, is really just discovering a risk factor and not a disease; it predicts that you have a greater chance of having a heart attack than someone with a normal cholesterol. Now you can reduce the probability of a heart attack by swallowing a statin, and it will make good sense for you personally, especially if you have other risk factors (male sex, smoking etc).. But if you are treating a population, keep in mind that you may have to treat several hundred people to prevent one heart attack. Using a statin costs about $150,000 for every year of life it saves in men, and even more in women (since their heart-attack risk is lower)--I don't see the savings there.
Or take the coronary calcium scans or heart scan, which most authorities suggest is not a test to be done on people who have no symptoms, and which I think of as the equivalent of the miracle glow-in-the-dark minnow lure advertised on late night infommercials. It's a money maker, without any doubt, and some institutions actually advertise on billboards or in newspapers, luring you in for this 'cheap' and 'painless' way to get a look at your coronary arteries. If you take the test and find you have no calcium on your coronaries, you have learned that . . . you have no calcium on your coronaries. If they do find calcium on your coronaries, then my friend, you have just bought yourself some major worry. You will want to know, What does this mean? Are my coronary arteries narrowed to a trickle? Am I about to die? Is it nothing? Asking such questions almost inevitably leads to more tests: a stress test, an echocardiogram, a stress echo, a cardiac catheterization, stents and even cardiac bypass operations--all because you opted for a 'cheap' and 'painless' test--if only you'd never seen that billboard. ...
I recently came on a phrase in an article in the journal "Annals of Internal Medicine" about an axiom of medical economics: a dollar spent on medical care is a dollar of income for someone. I have been reciting this as a mantra ever since. It may be the single most important fact about health care in America that you or I need to know. It means that all of us--doctors, hospitals, pharmacists, drug companies, nurses, home health agencies, and so many others--are drinking at the same trough which happens to hold $2.1 trillion, or 16% of our GDP. Every group who feeds at this trough has its lobbyists and has made contributions to Congressional campaigns to try to keep their spot and their share of the grub. Why not?--it's hog heaven. But reform cannot happen without cutting costs, without turning people away from the trough and having them eat less. If you do that, you have to be prepared for the buzz saw of protest that dissuaded Roosevelt, defeated Truman's plan and scuttled Hillary Clinton's proposal."