Fig. 3

One way sensitivity analysis evaluating incremental cost effectiveness ratios (ICERs) of UAPR compared with CIUP for a range of annual recurrence probabilities post abdominoperineal resection. Below a recurrence probability of 12%, UAPR dominates CIUP–it costs less and is more effective, thus generating no meaningful ICER. The range of recurrence probabilities considered thus begins with 15%