Table 2.

Area under the curve (95% CI) for a base model that includes age, comorbidities, clinical stage, clinical grade, PSA and year of surgery, plus each MRI variable that was found to be independently significant separately and a full model including all MRI variables. All values were corrected for statistical optimism using bootstrap methods.

	Continence at 6 months	Continence at 12 months
Base model	0.606	0.587
+Urethra length	0.622	0.628
+Outer levator	0.613	0.595
+Inner levator	0.611	0.602
+Urethra volume	0.622	0.613
Full model (base + all MRI variables)	0.636	0.634