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

Table 5 Sensitivity analyses (cost effectiveness)

	N	Adjusted Costs Mean £ (95% CI)	Adjusted QALYs Mean (95% CI)	Incremental costs Mean £ (95% CI)	Incremental QALYs (95% CI)	Incremental NMB at £20,000/QALY Mean (95% CI)	Probability cost-effective at £20,000
Discounted at 1.5%
Intervention (1.5%)	227	5073 (3807,6340)	2.65 (2.54,2.75)
Usual Care (1.5%)	110	6120 (4472,7768)	2.53 (2.36,2.69)
Intervention vs. usual care (1.5%)				-1046 (-3099, 1006)	0.12 (-0.08,0.32)	3458 (-1025, 7940)	0.93
Discounted at 5%
Intervention (5%)	227	4869 (3707,6031)	2.55 (2.44,2.65)
Usual Care (5%)	110	5982 (4184,7600)	2.42 (2.27,2.58)
Intervention vs. usual care (5%)				-1023 (-3033, 987)	0.12 (-0.07,0.30)	3392 (-931, 7716)	0.94
Elective inpatient stays
Intervention	227	4331 (3426,5236)	2.60 (2.48,2.70)
Usual Care	110	5197 (3881,6513)	2.47 (2.32,2.63)
Intervention vs. usual care				-866 (-2460, 728)	0.12 (-0.07,0.30)	3170 (-1012, 7351)	0.93
Missing values
Intervention	227	4954 (4052, 5857)	2.54 (2.41,2.66)
Usual Care	110	5876 (4639,7112)	2.45 (2.28,2.63)
Intervention vs. usual care				-1007 (-2533, 519)	0.12 (-0.05,0.29)	3330 (-480, 7142)	0.96

ISSN: 1471-2474