First I can not speak to Canada's healthcare system from personal experience, nor can I speak of that of Japan's or that of England's. I know that all these countries score better overall when it comes to health indices
https://www.who.int/healthinfo/paper30.pdf
What is the date of this "research"? I can help you, 2000. Two decades ago.
Why is there not any more recent? Because even the United Nations had to admit that the data used was unreliable.
Each country provided their own information using their own definitions of the terms.
Further, the criteria used leaned far more heavily on the availability of care rather than the quality of care.
July 5, 2000
We’re Number 37 in Health Care!
By Julie Chan
Feeling ill? If so, you might consider catching the next plane out of here, because the World Health Organization (WHO) says your health is best served by countries like Andorra, Cyprus or even Colombia. Each outperforms the U.S. health care system on the WHO’s recently issued World Health Report 2000.
[ ]
The WHO rankings of 191 health systems worldwide placed the United States 37th, trailing countries like Malta and Oman and barely edging out dilapidated Cuba. Predictably, “ClintonCare” champions are using the report in their battle cry for reviving the movement toward government‐controlled medicine. But the WHO study is much like the annual magazine rankings of colleges: It grabs plenty of headlines but rests on questionable analysis. A closer look at the WHO health care study reveals startling assumptions, critical lapses in statistical judgment, and a clearly predetermined political agenda.
Breaking “new methodological ground,” the WHO report rates national health care performance according to five trendy flavors of the month: life expectancies, inequalities in health, the responsiveness of the system in providing diagnosis and treatment, inequalities in responsiveness, and how fairly systems are financed.
First, consider the study’s data. Health statistics for each country were collected from individual agencies and ministries, assuring wide disparities in definition, reporting technique and collection methodology. Indeed, the report concedes that “in all cases, there are multiple and often conflicting sources of information,” if sources at all. For the many nations that simply do not maintain health statistics, the WHO “developed [data] through a variety of techniques.” Without consistent and accurate data from within a single country, how can meaningful comparison be made among 191 different countries?
www.cato.org