Table 4. Multivariable analysis of risk factors associated with responder rate.

	OR	95% CI	P-value
Gender (male)	0.85	0.52–1.37	0.52
Age	1.00	0.98–1.03	0.83
ASA-Class	0.86	0.59–1.25	0.43
Length of hospital stay	1.03	0.89–1.19	0.71
Surgical experience (Senior)	0.97	0.60–1.58	0.90
Use of navigation	1.15	0.68–1.95	0.60
Operative time	1.00	0.99–1.01	0.38
Pain medication preop	1.00	0.99–1.01	0.95
EQ-5D preop	0.11	0.03–0.43	0.001

OR = Odds Ratio. CI = Confidence Interval. preop = preoperative, ASA = American Society of Anesthesiologists.