Table 3.

Mean Difference of Variables Between 2006 and 2010

	2006		2010
Variable	Mean	SD	Mean	SD	P-value
RN staffing intensity	6.544	3.550	7.956	4.362	0.000
RN to non-RN ratio	2.508	1.562	2.858	1.698	0.000
Per capita incomes ($1,000)	32.375	8.865	36.492	8.600	0.000
Specialist resources (per 1,000)	1.445	1.217	1.516	1.329	0.000
Medicare HMO penetration	0.140	0.123	0.205	0.137	0.000
Change in unemployment rate	−0.092	0.087	0.033	0.088	0.000
HHI	0.780	0.315	0.782	0.312	0.040
Bed	167.168	163.207	168.120	168.295	0.157
Occupancy rate	0.575	0.184	0.543	0.185	0.000
CMI	1.347	0.254	1.401	0.271	0.000
LPN staffing intensity	1.160	1.245	1.160	1.454	0.983