Table 3.

Survival probability of cox-regression model within 1 year

	Hazard Ratio (95% CI)		P-value
Female	0.37	0.25–0.55	< 0.0001
Age (yrs)	1.09	1.07–1.11	< 0.0001
ASA class	3.32	2.33–4.74	< 0.0001
Press-Fit vs. cemented	0.49	0.33–0.71	0.0002
LOS (days)	1.09	1.02–1.13	0.0001