Table 1.

Descriptive statistics of individual characteristics

	White N= 596,419 (92.2%)		Black N= 50,075 (7.8%)
	Mean	Std. Dev.	Mean	Std. Dev.
Individual characteristics
Age	80.87	7.55	78.69	8.21
Male	0.351	0.477	0.363	0.481
Medicaid eligibility	0.183	0.387	0.512	0.500
High school graduate	0.334	0.472	0.265	0.441
More than high school	0.323	0.468	0.222	0.415
Missing education	0.155	0.362	0.143	0.350
Elixhauser comorbidity index	2.48	1.34	2.58	1.28
Deyo comorbidity index	1.59	1.86	1.89	1.99
Length of stay at hospital	9.11	7.44	11.40	9.96
Stayed for more than 20 days at NH	0.61	0.49	0.69	0.46
Residential zip code characteristics
% of black	4.65	9.64	41.01	31.06
% of rural population	23.96	33.12	16.59	30.33
Per capita income	23523	9320	21642	9800
Poverty rate	8.63	5.16	12.98	8.08