Table 7

Cost-effectiveness analysis

 Usual carePhysioDirectIncremental difference (95% CI)
nMean (SD) costnMean (SD) cost
Cost of physiotherapy432£78.77 (£57.08)840£86.75 (£65.47)£7.98 (£0.69 to £15.27)
Cost of NHS services other than physiotherapy432£100.91 (£502.02)840£112.23 (£476.91)£11.32 (−£45.08 to £67.72)
Total cost including physiotherapy432£179.68 (£504.73)840£198.98 (482.12)£19.30 (−£37.60 to £76.19)
QALYs4320.325 (0.077)8400.332 (0.081)0.007 (−0.003 to 0.016)
Incremental cost-effectiveness ratio (ICER) £2889
Median net monetary benefit (95% CI) based on bootstrapped results
 λ=£20 000£117 (−£86 to £310)
  Probability of intervention being cost-effective0.88
 λ=£30 000£184 (−£106 to £461)
  Probability of intervention being cost-effective0.90
  • Includes cases with complete data on NHS costs and QALYs.

  • NHS, National Health Service; QALY, Quality-Adjusted Life Year.