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Table 4 Primary analysis, CRFA vs IAS 6- and 12-month time horizon: deterministic mean (probabilistic sensitivity analysis mean; 95% confidence interval)

From: Cooled radiofrequency ablation of the genicular nerves for chronic pain due to osteoarthritis of the knee: a cost-effectiveness analysis based on trial data

Time horizon Intervention QALYs Incremental QALY gain Costs (US$) Incremental cost (US$) Cost per QALY gained (US$)a
6 months CRFA 0.347 (0.345; 0.265, 0.420) 0.091 (0.090; −0.024, 0.198) $2005 ($2005; $1929, $2083) $1711 ($1711; $1632, $1791) $18,773 ($19,053; −$58,845, $91,604)
  IAS 0.256 (0.255; 0.174, 0.335) $295 ($294; $275, $315)
12-months CRFA 0.714 (0.706; 0.543, 0.853) 0.229 (0.230; 0.011, 0.440) $2005 ($2005; $1929, $2083) $1711 ($1711; $1632, $1791) $7462 ($7424; $3189, $31,405)
  IAS 0.485 (0.475; 0.323, 0.630) $295 ($294; $275, $315)
  1. Abbreviations: CRFA cooled radiofrequency ablation, IAS intra-articular steroid, QALY quality-adjusted life-years
  2. aCost per QALY gained for the comparison of CRFA with IAS