A Cost-Utility Analysis of Robotic Arm-Assisted Total Hip Arthroplasty: Using Robotic Data from the Private Sector and Manual Data from the National Health Service

Table 4

Linear regression analysis of patient demographics, preoperative functional scores, and type of total hip arthroplasty (robotic arm-assisted versus non-robotic arm-assisted) associated with change in the EQ-5D score postoperatively.

Demographic	Descriptive	Change in EQ-5D (95% CI)	value
Sex (n, % of group)	Male	Reference
	Female	0.005 (−0.037 to 0.047)	0.814
Age	0.000 (−0.002 to 0.001)	0.540
Preoperative PROMs
	OHS	0.005 (0.002 to 0.009)	0.005
	FJS	0.000 (−0.003 to 0.001)	0.313
	EQ-5D	−0.829 (−0.916 to −0.743)	<0.001
	EQ-VAS	0.002 (0.001 to 0.003)	0.004
rTHA (n, % of group)	No	Reference
	Yes	0.091 (0.009 to 0.173)	0.029

PROMs: patient-reported outcome measures.