It's funny that co-pay I am paying for a service in the USA is comparable to a full private treatment with the same quality in Poland, where I grew up.
I'm curious about the quality of that source actually.
Based on the pdf linked from the OECD page [0] it looks like they're measuring the reported incidents of cancer based on medical records.
The medical records for the US may be skewed because they only cover the well-off (after all, the poor can't afford healthcare), while in other countries, like Poland, everyone rich and poor receives care and are included in the statistic.
Also, the numbers on wikipedia are stale, but they don't seem to have changed that much on the OEDC website. The ux is garbage so I didn't click around that much.