The news last fall that stents inserted in patients with heart disease to keep arteries open work no better than a placebo ought to be shocking. Each year, hundreds of thousands of American patients receive stents for the relief of chest pain, and the cost of the procedure ranges from $11,000 to $41,000 in US hospitals.
But in fact, American doctors routinely prescribe medical treatments that are not based on sound science.
Source: The evidence-based medicine problem: US doctors cling to procedures that don’t work – Vox
I wonder how many teachers are guilty of doing the same thing…
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