Comparison of Variable Selection Methods for Time-to-Event Data in High-Dimensional Settings

Table 7

Number of selected predictors and gene frequency occurrence for breast cancer dataset and each selection method (resampling results).

Training fraction	Number of selected predictors; med (min–max)
	LASSO-cvl	LASSO-pcvl	Elastic Net	BSS Enet	CoxBoost	RSF
1/2	26 (4-71)	11 (0-59)	47 (11-100)	30 (17-49)	26 (0-56)	82 (71-93)
2/3	40 (6-70)	14 (4-53)	58 (14-104)	41 (31-62)	40 (5-70)	85 (72-93)
	Occurrence frequency; med (min–max)
1/2	2 (1-65)	2 (1-57)	2 (1-73)	2 (1-77)	2 (1-64)	5 (1-57)
2/3	3 (1-92)	2 (1-73)	3 (1-95)	3 (1-98)	3 (1-91)	5 (1-61)