The STAR care pathway for patients with chronic pain after total knee replacement: four-year follow-up of a randomised controlled trial

Table 4 Cost-effectiveness results at 4 years

		Adjusted Costs	Adjusted QALYs	Incremental costs	Incremental QALYs	Incremental NMB at £20,000/QALY	Probability cost-effective at £20,000
	N	Mean £ (95% CI)	Mean (95% CI)	Mean £ (95% CI)	Mean (95% CI)	Mean £ (95% CI)
Intervention	227	4982 (3727,6237)	2.60 (2.49,2.70)
Usual Care	110	5983 (4164,7801)	2.47 (2.31,2.63)
Intervention vs. usual care				-1001 (-3238,1236)	0.13 (-0.06,0.32)	3525 (-990, 8039)	0.94

All variables are adjusted for hospital site and baseline BPI subscores. Additionally, QALYs are adjusted for baseline utility

ISSN: 1471-2474