Table 1.

Inputs and outputs definition of data envelopment analysis

Source	Parameter	Name
OECD health data/WHO health observatory	X1	Physicians, density per 1000 population (head counts)	Entrance
OECD health data/WHO health observatory	X2	Total hospital beds, per 1000 population
OECD health data/WHO health observatory	X3	Current expenditure on health, % of gross domestic product
OECD health data/WHO health observatory	Y1	Life expectancy	Output
OECD health data/WHO health observatory	Y2	Infant survival rate (calculated from infant mortality rate, deaths per 1 000 live births)