In his post, The Not So Awful Truth About Canadian Health Outcomes, Matthew Yglesias comments on a study done in 2007 which systematically reviewed studies to compare the health results for patients achieved by the US and Canadian health systems. The study he refers to, by multiple authors, is here. Yglesias summarizes key findings and then takes the Study authors’ conclusion,

Interpretation: Available studies suggest that health outcomes may be superior in patients cared for in Canada versus the United States, but differences are not consistent.

. . . and draws his own conclusion:

If you ask me, health care in the United States is not so great, so Canadian health care—which turns out to be of similar quality—is not so great either. But it’s a lot cheaper, so that’s nice. Alternatively if, like most conservatives, you deny that our system is broken and want to maintain that we have “the best health care in the world” then it turns out that Canada’s is probably slightly better, almost certainly no worse, and definitely cheaper.

It’s a good point, but I wonder if there’s more here. I could be misreading the original study, but what the study seems to be doing is comparing the health outcomes of patients once they get into the system and actually received treatment. The study is asking, "How did the actual health outcomes of patients compare in the two systems, once they were treated by the system?" So to be considered on the US side of the equation, you had to get into the system in the first place, then get treated. Everyone is automatically in the Canadian system.

In other words, the study doesn’t attempt or claim to deal with the fact that tens of millions of people are excluded from the US system or discouraged from using the US system because they can’t afford to pay for treatment and their insurance provider refuses to cover them at all or cover their treatment.

Once you take those differences into account, the US system isn’t even remotely comparable in overall "health outcomes" to the Canadian system when you consider the whole population. It’s an embarrassing disgrace. Am I misreading that report?

Update: Commenter bluebutterfly drives home a critical point: "The US has more citizens without health care coverage than Canada has total citizens."

More:
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Canadian debunks Canadian health care myths