Table 1.

Descriptive Statistics (N=902)

Variable	Mean	Standard Deviation	Minimum	Maximum
Total annual costs ($)	5,760,807	3,063,688	1,089,115	22,039,150
Adjusted patient days*	32,168	15,677	4,475	136,345
Admissions	258	277	0	4290
Annual case mix index	0.74	0.08	0.48	1.37
Admission case mix index	1.00	0.13	0.54	1.45
Log of county average CNA wages	2.38	0.13	2.06	2.65
Competition (1-HHI)	0.82	0.12	0.00	0.96
Revenue weighted number of health and social services establishments in the zip code	30.4	22.1	0.2	13.8
RNs per 1000 population in the county	10.5	4.8	0.0	33.7
For profit organization	0.87	0.34	0.0	1.0
Turnover - direct care nursing (%)	62.0	40.0	0.0**	352.9

^*

$\mathit{\text{adjusted patient days}}=\mathit{\text{total patient days}}\times \left(1+\frac{\mathit{\text{outpatient revenue}}}{\mathit{\text{inpatient revenue}}}\right)$

^**19 nursing homes had turnover rate of zero.