Table 4.

Mean Traits of High-Spending and Low-Spending Markets^a

Spending Markets	Populationb	Hospital Beds per 1000 Populationc	Hospital Concentrationd	Primary Care Physicians per Capitab	Specialist Physicians per Capitab
Top Third Thomson Reuters, 2006	600,145	3.68	0.434	5.53	13.01
Bottom Third Thomson Reuters, 2006	1,081,223	3.41	0.312	5.27	13.43
Top Third Medicare, 2006	1,365,559	3.38	0.240	5.34	15.93
Bottom Third Medicare, 2006	603,580	3.87	0.464	5.72	12.42

^aData for the commercially insured are from the Thomson Reuters MarketScan Research Database. Data for Medicare are from the Dartmouth Atlas.

^bData are from 2005.

^cData are from 2004.

^dData are from 2002.