Zero mention of wait times in the US compared to other countries. Pretty sure that's the chief complaint in most countries that have free-ish healthcare.
Anecdotally, I spend a lot more time literally in waiting rooms in Germany than I did in the US, but getting a specialist appointment is much faster here (getting a therapist absolutely excluded, but I was able to get a psychiatrist to write prescriptions for ADHD meds within a month).
US wait time for many: infinity. why? because current system is profitable.
I mean, in rural America short of a trip to the ER with whatever wait time they have, getting a primary care doctor is barely possible and only affordable if your employer provides medical care, which many many don't.
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Wouldn't you expect to see that reflected in outcomes? TFA mentions that the only studied country with more avoidable mortality than the US was Mexico. If you aren't seeing it, maybe its not as big a problem as all the people who cannot afford any access to care at all while the country spends more per-person.