Abbreviations: ORP, open radical prostatectomy; QALY, quality-adjusted life-year, RARP, robot-assisted radical prostatectomy.
aThe triangle indicates the base case scenario. Each circle surrounding the triangle represents a single result from the simulation, presenting the incremental effects and incremental costs of RARP relative to ORP. The green diagonal line shows the willingness-to-pay threshold of $100,000 per QALY.