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Contribution of factors to health care expenditure. The width of each included bar represents the percentage of difference in outcome explained by the factor, and each variable shows the factor. AMBEXP, expenditure per ambulatory care; HOSEXP, expenditure per hospitalization; CLINIC, number of clinic; GHSP, numbers of general hospital; MEI, Medicare Economic Index; POLICY, coverage expansion; OLD65, population aged 65 and over; GDP, gross domestic product per capita.
