 It noted that "the United States spent considerably more on health care than any other country ... [yet] most measures of aggregate utilization such as physician visits per capita and hospital days per capita were below the OECD median.Since spending is a product of both the goods and services used and their prices, this implies that much higher prices are paid in the United States than in other countries.The researchers examined possible reasons and concluded that input costs were high (salaries, cost of pharmaceutical), and that the complex payment system in the U.S. added higher administrative costs.