Table 3

Cost-utility analyses

Alternatives
Usual care
Usual care plus exercise

EQ-5D utility at baselinea
0.331 (0.150 to 0.511)
0.316 (0.162 to 0.470)
EQ-5D utility at 3 monthsa
0.334 (0.175 to 0.494)
0.582 (0.434 to 0.729)
EQ-5D utility at 8 monthsa
0.334 (0.175 to 0.493)
0.528 (0.380 to 0.675)
QALY over 8 monthsb
0.002 (-0.087 to 0.091)
0.133 (0.034 to 0.231)
QALY difference vs. usual carec

0.131 (0.011 to 0.290)
Health system perspective:


Incremental cost/person (€)

517
Cost-utility (€/QALY)c

3,947 (1,782 to 47,000)
Societal perspective:


Incremental cost/person (€)

1,032
Cost-utility (€/QALY) ‡

7,878 (3,559 to 93,818)

QALY, quality adjusted life year.

aMean (95% confidence interval) estimated by analysis of covariance with adjustment for baseline EQ-5D score and then rounded to 3 significant figures; bmean (95% confidence interval) using the area under the curve technique; cmean (95% confidence interval estimated by bootstrapping) using the area under the curve technique.

Gusi and Tomas-Carus Arthritis Research & Therapy 2008 10:R24   doi:10.1186/ar2377