Effect of pretreatment clinical factors on overall survival in glioblastoma multiforme: a Surveillance Epidemiology and End Results (SEER) population analysis

Table 4 Numbers of patients with GBM aged <50 by radiation treatment groups, extent of surgery groups, and 10-year age-bands

			10-Year Age-Bands
		20 to 29	30 to 39	40 to 49	Total
Radiation Groups	Extent of Surgery Groups
Yes	Surgical Resection	378	911	2,549	18,054
	No Cancer Directed Resection	64	111	373	4,312
	Unknown	22	41	96	1,020
Yes Total		464	1,063	3,018	23,386
No	Surgical Resection	78	152	424	5,152
	No Cancer Directed Resection	34	64	199	4,085
	Unknown	12	26	54	937
No Total		124	242	677	10,174
Unknown	Surgical Resection	6	28	57	596
	No Cancer Directed Resection	4	3	12	214
	Unknown	6	6	22	294
Unknown Total		16	37	91	1,104
All Radiation Groups	Surgical Resection	462	1,091	3,030	4,583
	No Cancer Directed Resection	102	178	584	864
	Unknown	40	73	172	285
All Radiation Groups Total		604	1,342	3,786	5,732

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