Figure 2.
Incremental cost-effectiveness plane. Incremental cost-effectiveness plane based on 10 000 Monte Carlo simulation iterations, which drew parameters for each input simultaneously from probability distributions. Incremental cost (2014£) is on the vertical axis and incremental efficacy (quality-adjusted life-years, QALYs) is on the horizontal axis. As depicted on the incremental cost-effectiveness plane, the probability of ranolazine being cost-effective was >99% (quadrants II and III), assuming a willingness-to-pay (WTP) threshold of £20 000/QALY. We estimated there was a 70.5% chance the addition of ranolazine to standard-of-care therapy would be a dominant economic strategy compared with standard-of-care alone (quadrant III).