Comparison of Different Machine Learning Models in Prediction of Postirradiation Recurrence in Prostate Carcinoma Patients

Table 6

Importance of inputs.

	Input 1	Input 2	Input 3	Input 4	Input 5	Input 6	Input 7
	UICC^1 stage	GS^2 risk group	Nadir PSA^3	Time to nadir PSA^3	PSA^3 doubling time	PSA^3 velocity	Follow-up PSA^3
Relative importance (%)	26.2	13.4	9.4	8.8	9.7	11.7	20.7

¹UICC: Union for International Cancer Control; ²GS: Gleason’s score; ³PSA: prostate-specific antigen.