Table 2.

Hospital Costs and In-Hospital Mortality among Inpatient Stays for Heart Failure, by Year

	2005	2006	2007	2008	2009	2010	2011
Hospitalization level
Number of hospitalizations	112,636	130,947	127,801	127,994	136,804	140,120	133,486
Observed cost, mean (SD)	$11,486 (12,590)	$11,134 (11,496)	$11,490 (12,476)	$11,284 (11,929)	$11,097 (11,418)	$10,670 (10,812)	$10,466 (10,601)
Observed in-hospital mortality rate, %	3.8	3.5	3.3	3.3	3.2	3.1	3.1
Hospital level
Number of hospitals	318	360	359	369	382	403	398
Risk-standardized cost, mean (SD)	$12,003 (3,666)	$11,514 (3,022)	$11,924 (3,352)	$11,660 (3,118)	$11,429 (2,858)	$11,004 (2,679)	$10,782 (2,603)
Risk-standardized in-hospital mortality rate, mean (SD)	3.9% (0.9)	3.6% (0.9)	3.4% (0.8)	3.4% (0.8)	3.3% (0.8)	3.2% (0.7)	3.2% (0.8)

Note. SD, standard deviation. All costs are reported in inflation-adjusted 2011 U.S. dollars.