Skip to main content

Table 2 Results of analysis for base case

From: Economic evaluation of access to musculoskeletal care: the case of waiting for total knee arthroplasty

Cost scenario   Avg. cost Avg. QALYs gained Avg. cost difference Avg. difference in QALYs gained Cost-effectiveness ratio Incremental cost-effectiveness ratio
A TKA without delay $17,840 12.18 $1,667 0.61 $1,464/QALY $2,723/QALY
Delayed TKA with Nonop Bridge $21,230 11.76 $3,398 0.19 $1,806/QALY $17,880/QALY*
Delay + No Bridge $16,170 11.57 - - $1,398/QALY -
B TKA without delay $59,640 12.18 - 0.61 $4,897/QALY  
Delayed TKA with Nonop Bridge $78,541 11.76 $18,900 0.19 $6,679/QALY DOMINATED**
  Delay + No Bridge $73,477 11.57 $13,836 - $6,351/QALY DOMINATED**
  1. Cost scenario A = Direct costs only, Cost scenario B = Indirect costs included
  2. *Waiting with a non-operative bridge resulted in a lower number of average quality-adjusted life-years gained while also at a higher average cost to the payer and is, therefore, “DOMINATED” by the TKA without delay strategy for the treatment of end-stage knee osteoarthritis in the base case. It is considered cost effective compared to delayed TKA with no treatment bridge.
  3. **When indirect costs are considered, TKA without delay is both less costly and more effective than the other two strategies and is therefore a dominant treatment strategy.