Skip to main content

Table 3 Results of comparison A (mobile versus fixed bearing) for Analyses 2 and 3

From: Partial factorial trials: comparing methods for statistical analysis and economic evaluation

  Analysis 2: inside-the-table Analysis 3: Bayesian bootstrap
With patella resurfacing
 Mobile bearing (N = 47)a
  Cost £9068 (£466) £9112 (£468)
  QALYs 5.559 (0.264) 5.471 (0.227)
  NMBb £102,110 (£5372) £100,301 (£4612)
 Fixed bearing (N = 51)a
  Cost £9169 (£1165) £9382 (£1167)
  QALYs 4.959 (0.289) 4.891 (0.240)
  NMBb £90,015 (£6256) £88,443 (£5169)
No patella resurfacing
 Mobile bearing (N = 52)a
  Cost £11,100 (£1147) £10,930 (£1065)
  QALYs 4.732 (0.311) 4.820 (0.251)
  NMBb £83,533 (£6755) £85,475 (£5385)
 Fixed bearing (N = 43)a
  Cost £8481 (£464) £8416 (£460)
  QALYs 5.029 (0.294) 5.135 (0.231)
  NMBb £92,104 (£6014) £94,290 (£4703)
  1. Numbers in brackets are SEs
  2. aIn Analysis 3, the bootstraps were weighted using weights calculated using a sample of 324 patients randomised only in the bearing comparison (163 to mobile bearing and 161 to fixed bearing) and 1333 patients randomised only in the patella comparison (673 to patella resurfacing and 660 to no resurfacing)
  3. bAt a £20,000/QALY ceiling ratio