One of the most interesting discoveries in US medicine is that there is essentially no relationship between cost and outcomes- even within the US. The Dartmouth

One of the most interesting discoveries in US medicine is that there is essentially no relationship between cost and outcomes- even within the US. The Dartmouth Atlas of Health Care has shown that there are wide price disparities within the US (and not necessarily in predictable ways, e.g. https://www.newyorker.com/magazine/2009/06/01/the-cost-conundrum https://www.newyorker.com/magazine/2009/06/01/the-cost-conun... ) and that they don't correlate with improved outcomes. To some extent, prices are a random walk that is orthogonal to a different random walk that is 'quality.' Then again, repetition helps. People who do more procedures generally get better results. In colonoscopies, studies show that the fastest doctors also have the lowest false positive/negative rates, because the way you get fast and the way you get good is to do it again and again.