Table 3.

Results of the Multivariate Cox Proportional Hazards Regression: Significant Correlates of Time to Discharge

Independent Variable	Hazard Ratio	SE	95% Confidence Interval	P-value
Total Activity Level (per hour increase)	0.997	0.002	(0.993, 1.000)	0.057
GMHR (reference: GMHR=4)
GMHR= 1	3.452	1.923	(1.158, 10.288)	0.026
GMHR= 2	1.964	0.694	(0.983, 3.925)	0.056
GMHR= 3	1.225	0.431	(0.615, 2.440)	0.563
PGDRS Mobility Score (reference: mobility=3)
Mobility= 1	0.365	0.114	(0.198, 0.674)	0.001
Mobility= 2	0.724	0.260	(0.358, 1.465)	0.369
MMSE total (per point increase)	0.967	0.012	(0.944, 0.990)	0.006

Legend: SE= Standard Error; GMHR= General Medical Health Rating; MMSE= Mini-Mental State Exam; PGDRS = Psychogeriatric Dependency Rating Scale