. Author manuscript; available in PMC: 2014 Jan 1.

Published in final edited form as: Am J Phys Med Rehabil. 2013 Jan;92(1):14–27. doi: 10.1097/PHM.0b013e31827441bc

Table 4. Case-mix groups (CMG) stratified by discharge year.

	2002	2003	2004	2005	2006	2007	2008	2009	2010
CMG 2001	13.9%	11.4%	10.1%	7.9%	6.1%	4.8%	4.9%	4.6%	4.4%
CMG 2002	29.7%	29.7%	27.5%	29.0%	27.0%	23.5%	22.1%	21.3%	21.2%
CMG 2003	34.4%	34.6%	36.7%	36.6%	35.9%	35.9%	36.0%	36.0%	35.5%
CMG 2004	8.4%	12.2%	9.0%	22.3%	31.1%	35.8%	37.0%	38.1%	39.0%
CMG 2005	13.7%	12.1%	16.7%	4.3%

Data are presented as percentage. Yearly summaries represent fiscal year periods (October 1 to September 30) from the Centers for Medicare and Medicaid Services.