Table 1.

Age and Sex Distribution of 199 Patients with Primary Glioblastoma Operated at Haukeland University Hospital in the Period from 1998 to 2008.

	Frequency	Percentage
Sex
Male	115	57.8
Female	84	42.2
Age at operation in years*
30 to 39	6	3.0
40 to 49	19	9.5
50 to 59	40	20.1
60 to 69	76	38.2
70 to 79	47	23.6
80 to 89	11	5.5

^*Median, 65 years; range, 30 to 84 years.