Repeat Whole Brain Radiation Therapy with a Simultaneous Infield Boost: A Novel Technique for Reirradiation

Table 3

Subgroup analysis, excluding small cell and melanoma (n = 11).

OS	202 days (14–434)
Histology	NSCLC, breast, and adenocarcinoma
Median age	52
RPA class	I—2
	II—6
	III—3
KPS	90%
Median time from initial WBRT to repeat WB-SIB	553.5 days

WB-SIB: whole brain simultaneous infield boost, KPS: Karnofsky Performance Status, WBRT: whole brain radiation therapy, OS: overall survival, and RPA: recursive partitioning analysis.