Quality of life assessment after total knee arthroplasty in patients with Parkinson’s disease

Table 3 Multiple regression model for improvement of QOL (N = 60)

Outcome	Variable	βcoefficient	P
ΔEQ-5D	Preoperative EQ-5D	−0.48	< 0.01*
	Follow-up (month)	0.00	0.57
	PD	−0.09	< 0.01*
	Married	0.04	0.11
	History of cancer	−0.07	0.09
	Bilateral TKA	−0.03	0.10
ΔPDQ	Preoperative PDQ	−0.38	< 0.01*
	Follow-up (month)	0.31	0.27
	Married	−6.98	0.05
	History of cancer	8.12	0.13
	Bilateral TKA	5.21	0.01*
ΔPHQ-9	Preoperative PHQ-9	−0.39	< 0.01*
	Follow-up (month)	−0.03	0.23
	Married	−0.70	0.15
	Prior depression/anxiety	2.89	< 0.01*
	Duration of symptoms (months)	0.09	< 0.01*

* Statistically significant: P<0.02
Outcome: the increase of EQ-5D indicated the improvement of QOL; declines in PDQ and PHQ-9 indicate improvement of QOL

ISSN: 1471-2474