[citation needed] Concerns raised over the five factors considered, data sets used and comparison methodologies have led health bodies and political commentators in most of the countries on the list to question the efficacy of its results and validity of any conclusions drawn.
Such criticisms of a broad endeavour by the WHO to rank all the world's healthcare systems must also however be understood in the context of a predisposition to analytical bias commensurate with an individual nation's demographics, socio-economics and politics.
In considering such a disparate global spectrum, ranking criteria, methodology, results and conclusions will always be an area for contention.
Indeed, the 2000 results have proved so controversial that the WHO declined to rank countries in their World Health Reports since 2000, but the debate still rages on.
With this in mind, and in lieu of any further ranking information from the WHO since 2000, there are many analytical bodies now looking at national healthcare delivery in global contexts and publishing their findings.