Figure 2.

Cost-effectiveness plane depicting incremental life-year gained (LYG) (x-axis) against incremental costs (y-axis) for CT colonography (CTC), MR colonography (MRC), colonoscopy and faecal immunochemical test (FIT) screening to no screening (origin). Darker colours indicate more screening rounds (two, three and four rounds with a 10-year screening interval) and the open symbol indicates the imaging strategies with five screening rounds with a 5-year interval. GDP, gross domestic product; ICER, incremental cost-effectiveness ratio.