In NHS Fares Best on Free Access to Healthcare, the Guardian features Commonwealth Fund research from the 2010 international survey. The findings are detailed in a Health Affairs article published today, How Insurance Design Affects Access to Care and Costs, by Income, in Eleven Countries.
"The NHS is the only health system in the industrialised world where wealth does not determine access to care—providing the most widely accessible treatments at low cost among rich nations, a key study has found. The survey, by US health thinktank the Commonwealth Fund, showed that while one-third of American adults "went without recommended care, did not see a doctor when sick, or failed to fill prescriptions because of costs", this figure was only 6% in the UK and 5% in Holland."