Table 2. Pretreatment characteristics by 0211 and historical data set (7401, 7918, 8302, 9006, 9411).

There appear to be no differences in overall survival, neither in the group of all patients nor in patient groups stratified by.RPA class.

	RTOG 0211		Historical control
	n	%	n	%
Age
<50	30	22	487	33
>= 50	106	78	970	67
Zubrod
0	57	42	629	43
1	79	58	684	47
2,3	0	0	143	10
unknown/missing	0	0	1	<1
Surgery
biopsy	31	22	241	17
part.resect	68	51	878	60
tot.resect	36	26	328	23
other	1	1	8	1
unknown/missing	0	0	2	<1
Neurologic Function
none/minor	107	79	794	54
moderate	27	20	582	40
hospital	0	0	77	5
unknown/missing	2	1	4	<1
RPA Class
III	12	9	250	17
IV	83	61	652	45
V	41	30	555	38