Table 2.

Radiation dosage in different treatment groups based on response to chemotherapy

Response after chemotherapy	WBRT dose (Gy)	Total dose (Gy)
Standard-dose group (>23.4 Gy)
CR (n = 27)	27.0 (25.2–30.6)	45.0 (36.0–54.0)
PR (n = 36)	30.6 (25.2–36.0)	50.4 (45.0–55.8)
SD/PD (n = 5)	30.6 (27.0–36.0)	50.4 (45.0–54.0)
Reduced-dose group (≤23.4 Gy)
CR (n = 9)	19.8 (18.0–23.4)	36.0 (36.0–50.4)
PR (n = 9)	21.6 (18.0–23.4)	45.0 (45.0–50.4)
SD/PD (n = 2)	20.7 (18.0–23.4)	42.3 (39.6–45.0)

Values are presented as median (range).

WBRT, whole-brain radiotherapy; CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease.